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UM10722 - NXP Semiconductors

1. G3 LNNOW LON WN zo NO T ae T c EE T gt DTS EE WN WN Avvoszw1 JU T rev a dU T Ier DIOT AU EE ma EE JU 0T DE E N 4 SCH zo Tsu osu veg PT try EED Lra suozz le o A78 969 Pr ssu JN wn N t _k HN EEN S T g9v899 40 OOT ele et N S ask ep 9 zs D ymaeosezw LED AVvO6ZW1 4 L Kal x von le S 99899 riet ka Bol WN rO DDI capa t T ymdeoszwi vou mee mre sra NZ UA 00T ven ou Sen eg _ Avroezw WN ory SH K Dot DC UA EE EE 66Ava u ek gry gry E er sto l Z tz ST osmva KW Juozz 910 A lt 93udns ACTH Dzs D zsu Uo d T Cou DI 8 8 8 sou STI STI STI A A 3 oA A wiz9 WN N w S WE e OCH WN dU ZZ UT LOI lorie 1 vies UA OT 5 ict zeo mm LZ gst OF Ero ZL9 Lu LSY ask 9EY 1272 ery 2 ONS TEVHATL E js Ju T T T T T sn em ee EEN R t sch ores Hir v vsT9Hss sam UOT ano 9tesva m OEE esy SE e zn aE SC CIS za 994 GE seu D S l wid rs d We 4 I y 4 9lesva U OEE 109429 RA R goreog a S Se zo og N3 O8HSS LA S KE 10 orssaoa NETE T S D Dt g4sns J 90 ZID fv8xza otesva gtesva 4uOLb met U 00T Dn LE 1 ooz WIZZ D vz etd ua dne 90 ozo
2. HS1 NXO E uss T ep GE H MH3 C WWW NXP COM O wn SE 0 Se 123 R2 00 Qi c3 ER C10 K T CH a gt T1 U1 T ej L3 S S d a ca Sen Ze a T2 Di be R4 ra g C B WBS 5 WB3 las 8 S H e WEE O EN pz EI d a2 Do NA Ci ZS DAT k A we4 4 O0000 000 29562 SILKSCREEN 1 COMP SIDE 2A000 Fig 26 PCB top side component placing R28 _ py WW NXP COM R27 R63 SSL4120DB1123 R2 00 Mein R74 1 R68 R17 L R64 Ret D14 SEN 1 Cu x PAS I r RSL RBT R44 C E Z R10 aze greo 1 R55 abe Nist p10 c16 Z pe KR C37 a a3 8 E Unuesg ERO KA Ka Re Lesa Leaf 1 R53 l DA pal ll D9 R26 C22 B Ep R71 Las D 1 R52 nka ca pag RAO L dali oI w o U erent DS 3 ae e R25 R24 R70 C40 1 R56 R48 R45 u4 C25 gR59 R32 R29 R37 1 D 1 R20 oe ad Us e Aa ue R18 C44 R41 R33 1 1 U C17 R62 P SW cen R16 1 R36 R69 R35 I c26 Se S pra c39 DT oe WM CC L O R38 1 db c13 Ria Ee pis c32 C31 e SE 7 R8 MH4 D2 3 KH R21 0 R14 bh Ki pe E Z Re MH2 m c23 aie Ris E R34 ce R7 ooo8s 341e go S Wi Hall Sdce S 000 O0000 Fig 27 PCB bottom side copper and component placing UM10722 All information provided in this document is subject to legal
3. SSL4120DB 1123 90 W 1 9 A CC dimmable LED driver Vo V Vo V operating point R Loan R Loap SCH Wees 330 CV limit 200 CV limit A 49 49 Vo 38 operating point operating Roan 33 Q point i 15 15 i lo A lo A 0 0 0 19 CC limit d 0 0 0 19 l 1 5 CC limit 1 9A 1 9A a Resistive load line no dimming CC operation b Resistive load line no dimming CV operation Fig 17 l V diagrams of LED driver with constant voltage and constant current regulation 5 9 LED current control The DIM input controls the constant current regulation set point which is derived from the accurate 13 V supply regulated with U5 The set point varies from 10 mV to 100 mV e Resistors R66 R71 and R67 set the 10 mV lower limit e Resistors R66 R71 R68 and R73 set the 100 mV upper limit The 13 V local supply draws current from Vo The current is minimized by using a low current shunt regulator TLVH431 and a high gain optocoupler The dissipation in Q6 is minimal for the specified V range 120 Van mV 100 80 60 40 20 0 0 2 4 6 8 10 12 Viow V Fig 18 Current control set point as function of DIM input voltage UM10722 All information provided in this document is subject to legal disclaimers NXP B V 2014 All rights reserved User manual Rev 1 1 19 August 2014 18 of 39 NXP Semiconductors U M 10722 SSL4120DB 1123 9
4. 60 Hz 3 74 2 93 4 55 6 45 120 V AC 60 Hz 3 30 3 81 6 43 8 68 230 V AC 50 Hz 5 59 9 83 12 7 15 0 277 V AC 60 Hz 9 12 16 2 18 1 19 1 UM10722 All information provided in this document is subject to legal disclaimers O NXP B V 2014 All rights reserved User manual Rev 1 1 19 August 2014 23 of 39 NXP Semiconductors UM10722 SL4120DB 1123 90 W 1 9 A CC dimmable LED driver 6 4 Mains current harmonics linains 140 ne SR SE 60 m full load IEC limit d Fig 23 oO N CH 2 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 mains current harmonics order IEC 61000 3 2 mains current harmonics class C compliance at 230 V AC 50 Hz full load UM10722 6 5 No load input power The no load input power is measured with nothing connected to connectors J 2 LED and J 3 DIM Table 8 V mains 100 V AC 60 Hz 120 V AC 60 Hz 230 V AC 50 Hz 277 V AC 60 Hz No load power measurement P standby 2 41 W 2 43 W 2 15 W 2 09 W Imains 42 8 mA 43 3 mA 47 1 mA 45 8 mA 6 6 Standby input power Some LED drivers have a standby power supply and a microcontroller to control a main power supply When using the SSL4120T in the main power supply a microcontroller can pull down pin SSHBC EN using a transistor The standby input power is measured while the pin SSHBC EN is shorted to ground Table 9 V mains 120 V AC 60 Hz 230 V A
5. LNOSNS XVWSY Y ety FH POH 199 DH Zou zor ONG Sans NIW42 Svs S NON T S EE e a gt osHundsNs anos id T Been De 9am Mzz dU OZY WUT 4 de een ewen wem d l Ni A Hd OTZ 1 Ka Su on Gal cc NETH MLOOPW4 Di El I 93udns lt I 93YdNS Z N sta LI l ji 8 T S lwat Mit vam Ge SI SR J sam 4u 00T I t e mr oos00 uzg Lao az Lo Sg He TON SHdns du OEE a1 tvo eu DJ G 7 65E ezo P L P 819 kee gie z T SHALV9 071 A 00T GE SE TOSS T Ka E S s O9NZ4d24 ia gen Svo an T zt h z L H Uel le A zam EVEN n Yan a zu 00Z X8ZOA9 l E va l Oz Jot DEHYNISNS 244 ONS Ke fi T een Zu T pp SF P 9audns H 9tesva EE OONL4dD4 ad 1 zeng oTo Z Fig 25 LLC stage and LED output NXP B V 2014 All rights reserved All information provided in this document is subject to legal disclaimers UM10722 Rev 1 1 19 August 2014 26 of 39 User manual NXP Semiconductors U N 10722 SSL4120DB 1123 90 W 1 9 A CC dimmable LED driver 8 PCB layout The PCB board information e Wave soldering e Single layer e Component numbering is starting at the mains connector e Some holes are added where possible for experimentation
6. SSL4120T protection features involved during output short are e LLC current sense input SNSCURHBC via sense resistor R41 e Half bridge switching node voltage sense input HB e Protection timer RCPROT pin with components R16 and C17 The output undervoltage protection via pin SNSOUT is disabled by the application to support the large V range Q2 FCPF7N60 L k C15 L Lp 710 uH _ Ft 47 pF Lk 204 uH nu N 5 545 3 LS is V L E a BY Q28X 200 o GR l Fe 3 i 1 2 ED FCPF7N60 CAN 5 2 Cll c39 L 1 e T S tL 47 UF we 100 nF Wr SC S Sas H C23 C9 c7 q R69 S c44 Zen ST oe F 0 050Q 1W l3 4 ou L DIS FM4007W Sa GND PRI Fig 20 Part of the circuit diagram relevant for output short conditions SNSCURHBC SGND CFMIN RFMAX SNSFB SSHBC EN RCPROT 5 11 1 UM10722 Output short at start up The SSL4120T performs a soft start It starts at the highest half bridge frequency and then ramps down The half bridge current is sensed via pin SNSCURHBC and the controller starts to regulate the half bridge frequency using pin SSHBC EN when Vsnscurupc gt 0 5 V During the current regulation the RCPROT fault timer is activated and C17 is charged The RCPROT fault timer ends when Vacprot gt 4 0 V The controller stops switching C17 is discharged by resistor R16 when the fault timer is inactive The RCPROT timer duty
7. V 2014 All rights reserved User manual Rev 1 1 19 August 2014 31 of 39 NXP Semiconductors U M 10722 SL4120DB 1123 90 W 1 9 A CC dimmable LED driver 11 Thermal measurement Fig 33 Thermal camera photograph top side PCB V mains 90 V AC full load Fig 34 Thermal camera photograph bottom side PCB V mains 90 V AC full load UM10722 All information provided in this document is subject to legal disclaimers NXP B V 2014 All rights reserved User manual Rev 1 1 19 August 2014 32 of 39 NXP Semiconductors UM10722 SSL4120DB 1123 90 W 1 9 A CC dimmable LED driver 12 Bill Of Materials BOM Table 12 Bill of materials Part Reference Description and values Manufacturer bart Number Manufacturer BR1 bridge rectifier 8 A 600 V GBU806 Diode Inc Cl capacitor 100 pF 10 440 V Y2 VY 2101K29Y5SG63V7 Vishay C2 C4 capacitor 220 nF 20 310 V X2 BFC233922224 Vishay C3 C5 capacitor 220 nF 5 630 V ECW FA2 224 Panasonic C6 capacitor 47 uF 20 450 V EEUEE2W470S Panasonic C7 capacitor 8 2 nF 5 1 6 kV B32672L1822 000 Epcos C8 capacitor 220 uF 20 35 V UPJ 1V221MPD1TD Nichicon C9 capacitor 330 pF 5 1 kV DEA1X3A331J A2B Murata C10 capacitor 3 3 nF 20 300 V Y2 B32021A3332M Epcos C11 capacitor 47 uF 20 100 V UBT2A470MPD Nichicon C12 Capacitor not mounted 47 pF 5 630 V GRM31A5C2J 470 W01D Murata COG 12
8. aux V bus fsw HB nom Cr Parameter effective series inductance leakage inductance inductance ratio Lp Lik primary turns to secondary turns ratio primary turns to auxiliary turns ratio bus voltage nominal half bridge switching frequency resonance capacitor Value 710 uH 204 uH 3 48 5 545 8 714 435 V 116 kHz 8 2 nF Condition pins 5 to 6 tie pins 1 2 3 4 7 8 Vo 48 V Po 90 W 1 Lp Lk Lm All information provided in this document is subject to legal disclaimers NXP B V 2014 All rights reserved User manual Rev 1 1 19 August 2014 29 of 39 NXP Semiconductors U M 10722 SSL4120DB 1123 90 W 1 9 A CC dimmable LED driver 10 EMI measurement 10 MHz S KA lt J 7 LDE R EE 1 T IE ER EE ER ER EES EE 9 kHz 30 MHz Fig 31 Conducted emission pre scan L and N V mains 230 V AC UM10722 All information provided in this document is subject to legal disclaimers NXP B V 2014 All rights reserved User manual Rev 1 1 19 August 2014 30 of 39 NXP Semiconductors U M 10722 SSL4120DB 1123 90 W 1 9 A CC dimmable LED driver Fig 32 Conducted emission pre scan results L and N V mains 277 V AC UM10722 All information provided in this document is subject to legal disclaimers NXP B
9. disclaimers NXP B V 2014 All rights reserved User manual Rev 1 1 19 August 2014 27 of 39 UM10722 SSL4120DB 1123 90 W 1 9 A CC dimmable LED driver NXP Semiconductors 9 Transformer information 9 1 PFC transformer Wurth Electronics Midcom Inc part number 750313715 UM10722 a Bottom view b Top view Fig 28 PFC transformer drawings c Winding pin out Table 10 PFC transformer electrical specifications Symbol Parameter Value Condition Lp inductance 500 uH pins 7 to 9 Isat saturation current 3 5A N turns ratio 17 33 9 7 12 1 13 00 9 7 3 10 Lik leakage inductance 40 uH tie 1 3 10 12 Ve Dielectric rating 1000 V AC pins 1 to 7 1000 V AC pins 3 to 7 2000 V AC pin 7 to core R ac DC resistance 260 MQ pins 7 to 9 100 mQ pins 3 to 10 200 MQ pins 1 to 12 All information provided in this document is subject to legal disclaimers NXP B V 2014 All rights reserved User manual Rev 1 1 19 August 2014 28 of 39 NXP Semiconductors UM10722 UM10722 SSL4120DB 1123 90 W 1 9 A CC dimmable LED driver 9 2 Integrated LLC transformer ITACOIL PCB inductive components part number TRLEV25048A 150213A a Fig 29 TRLEV25048A 150213A Bottom view b Side view LLC transformer drawings Table 11 LLC transformer electrical specifications Symbol Lp Lik m Np N sec Np N
10. input power P itno oag MUSE be specified According EU Ecodesign regulation No 1194 2012 the following requirements hold for P ino load aNd P itstanaby Must be lt 1 0 W from September 2014 onwards lt 0 5 W from September 2016 onwards EU Ecodesign regulation No 1194 2012 definitions no load mode means the condition of a lamp control gear where it is connected to the supply voltage and where its output is disconnected in normal operation from all the primary loads by the switch intended for this purpose a faulty or missing lamp ora disconnection of the load by a safety switch is not normal operation standby mode means a mode of lamp control gear where the lamps are switched off with the help of a control signal under normal operating conditions It applies to lamp control gear with a built in switching function and permanently connected to the supply voltage when in normal use In no load conditions this board can reach P lt 0 5 W when the following list with modifications is applied to the default circuit Table 13 Modifications to support P i no toaa Component Value Modification D15 BZX84 C51 mount Q5 BC546B mount R48 10 kQ mount R50 10 kQ mount R51 3 9 kQ mount R52 do not mount R64 not mount U1 SFH615A 4 mount In normal operation the PFC is notin burst mode To reach the low P ino oaay the HBC and PFC stage must be operated in burst mode When V is higher than the Vous Vu the optoco
11. is normally too high and can cause unnecessary power dissipation Table 4 Turn on delay times V mains talon 100 V AC 60 Hz 272 ms 120 V AC 50 Hz 213 ms 230 V AC 60 Hz 125 ms 277 V AC 60 Hz 129 ms UM10722 All information provided in this document is subject to legal disclaimers NXP B V 2014 All rights reserved User manual Rev 1 1 19 August 2014 15 of 39 NXP Semiconductors U M 10722 SL4120DB 1123 90 W 1 9 A CC dimmable LED driver gt i II D H Timebase 700m Trigger GG 50 0 ms div Stop 1 000 A KELSE DG Positive X1 269 07420ms AX 271 71124ms X2 2 63704ms 1 AX 3 6803777 Hz 5 23 2013 4 34 45 PM 1 Cl le C2 Vo CA V mains Fig 15 Turn on delay time oscillogram at 100 V AC 60 Hz UM10722 All information provided in this document is subject to legal disclaimers NXP B V 2014 All rights reserved User manual Rev 1 1 19 August 2014 16 of 39 NXP Semiconductors U M 10722 UM10722 SSL4120DB 1123 90 W 1 9 A CC dimmable LED driver 5 8 LLC feedback control loop The LED driver incorporates two regulation features e A Constant Voltage CV regulation e A Constant Current CC regulation In normal operation the CC loop is closed and the CV loop is open The set point of the LED output currentis controlled with the DIM input signal D4 e 3 BY Q28X 200 o 47uH 2A 6 4 T els m 2 D i 2 Lcs LED 5 2 c11 C39 i 10
12. or additions NXP Semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information 15 2 Disclaimers Limited warranty and liability Information in this document is believed to be accurate and reliable However NXP Semiconductors does not give any representations or warranties expressed or implied as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information In no event shall NXP Semiconductors be liable for any indirect incidental punitive special or consequential damages including without limitation lost profits lost savings business interruption costs related to the removal or replacement of any products or rework charges whether or not such damages are based on tort including negligence warranty breach of contract or any other legal theory Notwithstanding any damages that customer might incur for any reason whatsoever NXP Semiconductors aggregate and cumulative liability towards customer for the products described herein shall be limited in accordance with the Terms and conditions of commercial sale of NXP Semiconductors Right to make changes NXP Semiconductors reserves the right to make changes to information published in this document including without limitation specifications and product descript
13. ssssss sese sese vssessvssessessesesvess 38 Definitions sese eee eee eee eee eee 38 EI e Tn ege ege 38 Trademarks e REEEKESEEREEEEEEEEEENEN NEE edie ts 38 16 OT 0 te eB 39 Please be aware that important notices concerning this document and the product s described herein have been included in the section Legal information NXP B V 2014 All rights reserved For more information please visit http www nxp com For sales office addresses please send an email to salesaddresses nxp com Date of release 19 August 2014 Document identifier UM10722
14. with customer In no event shall NXP Semiconductors its affiliates or their suppliers be liable to customer for any special indirect consequential punitive or incidental damages including without limitation damages for loss of business business interruption loss of use loss of data or information and the like arising out the use of or inability to use the product whether or not based on tort including negligence strict liability breach of contract breach of warranty or any other theory even if advised of the possibility of such damages Notwithstanding any damages that customer might incur for any reason whatsoever including without limitation all damages referenced above and all direct or general damages the entire liability of NXP Semiconductors its affiliates and their suppliers and customer s exclusive remedy for all of the foregoing shall be limited to actual damages incurred by customer based on reasonable reliance up to the greater of the amount actually paid by customer for the product or five dollars US 5 00 The foregoing limitations exclusions and disclaimers shall apply to the maximum extent permitted by applicable law even if any remedy fails of its essential purpose Safety of high voltage evaluation products The non insulated high voltages that are present when operating this product constitute a risk of electric shock personal injury death and or ignition of fire This product is intended for evalua
15. 0 W 1 9 A CC dimmable LED driver Fig 19b shows a typical load line of an LED module The voltage slightly decreases while the LED module is dimmed Vo V Vo V R Loan CV limit 27 Q CV limit 49 i 49 i LED module load line Vo 42 i V 38 operating point 15 a ee L dimming i dimming la 1 0 lo A lo A 0 0 0 19 CC limit 1 9 0 0 0 19 CC limit 1 9 14A 10A a Resistive load line with dimming CC operation b LED load line with dimming CC operation Fig 19 LV diagrams of LED driver with constant voltage and constant current regulation 5 10 Output voltage control Operation without a LED module connected is considered a fault mode because the LED driver is intended to be connected with a LED module The voltage control limits the output voltage when no load is connected or when an LED string is broken When the voltage control loop is closed the CC loop is open In CV mode the output is V is regulated at V ymax 49 V UM10722 All information provided in this document is subject to legal disclaimers NXP B V 2014 All rights reserved User manual Rev 1 1 19 August 2014 19 of 39 NXP Semiconductors U M 10722 SSL4120DB 1123 90 W 1 9 A CC dimmable LED driver 5 11 Output short conditions Several features provide protection against component damage when the LED output is shorted Two conditions must be considered e Short at start up e Short during operation The
16. 0 nF LE Ten F S 2447 UF se 100 nF ee l ale R69 S C44 LED 0 0500 1W la 4 8 1 g T 100 nF ee D18 3 Vo FM4007W 4 13V Lp 710 pH N Ly 204 uH NoiNsec 5 545 R62 R70 R67 24 KQ 2 2kQ 270kQ 14 7 ko Q6 BCP56 16 Q7 13 V J BC846B me R61 1 8 kQ Ge U2 C35 SFH615A 4 4 7 uF 59KQ Us R S TLVH431 Jeg R56 EE 6 2 KQ ji CC s CC aA Set point closed loop R65 i 270 0 moe e R52 c40 82 kO 13 V D16 ee 220 nF o BAW56 5 C41 cev L o 7 sel nF Set point U6BN S m R53 R60 LM2904AaV H lov kg 33 KQ CV R64 closed loop 00 S A U6A LM2904AV me C37 gt AB 100 pF 2 4 R55 sie C36 8 2 KQ Ge C42 A C38 Juec Ink Sab 1nF LM2904AV R58 v 22 KQ 4 Fig 16 LLC control loop error amplifiers and output section of the LLC stage The DIM input signal can reduce the CC set point C37 C38 C43 C47 are placed to prevent HF noise from entering the control loop All information provided in this document is subject to legal disclaimers NXP B V 2014 All rights reserved User manual Rev 1 1 19 August 2014 17 of 39 NXP Semiconductors U M 10722
17. 040C 1001FC100 Vishay R5 resistor 2 21 Q 1 400 mW THT MBA02040C 2218FC100 Vishay R6 R7 resistor 1 5 MQ 1 250 mW 1206 HV732BTTD1504F KOA Speer R8 resistor 110 kQ 1 250 mW 1206 HV732BTTD1103F KOA Speer R9 resistor 270 mQ 1 500 mW 1206 RCWE1206R270FKEA Vishay Dale R10 resistor 270 mQ 1 500 mW 1206 RCWE1206R270FKEA Vishay R11 R21 R30 resistor 10 Q 1 100 mW 0603 RC0603FR 0710RL Yageo R12 R13 R14 resistor 3 3 MQ 1 250 mW 1206 RC1206FR 073M3L Yageo R15 R31 resistor 15 kQ 1 100 mW 0603 RC0603FR 0715KL Yageo R16 resistor 75 kQ 1 100 mW 0603 RC0603FR 0775KL Yageo R17 R58 R73 resistor 22 kQ 1 100 mW 0603 RC0603FR 0722KL Yageo R18 R25 R26 R27 resistor 0 Q 250 mW 1206 RC1206J R O70RL Yageo R28 R37 R63 R19 resistor 1 kQ 1 100 mW 0603 RC0603FR 071KL Yageo R20 resistor 5 6 KQ 1 100 mW 0603 AF0603FR 075K6L Yageo R22 resistor 51 KQ 1 100 mW 0603 RC0603FR 0751KL Yageo R23 R34 resistor 22 Q 1 100 mW 0603 RC0603FR 0722RL Yageo R24 resistor 390 kQ 1 250 mW 1206 RC1206F R 07390KL Yageo R29 R42 R44 R45 resistor 33 KQ 1 100 mW 0603 RC0603FR 0733KL Yageo R60 R32 resistor 39 KQ 1 100 mW 0603 RCO603FR 0739KL Yageo R33 R54 resistor 5 1 KQ 1 100 mW 0603 RC0603FR 075K1L Yageo UM10722 All information provided in this document is subject to legal disclaimers NXP B V 2014 All rights reserved User manual Rev 1 1 19 August 201
18. 06 C15 C23 capacitor 47 pF 5 630 V COG 1206 GRM31A5C2 470 WO1D Murata C13 C19 C21 C38 capacitor 1 nF 10 50 V COG 0603 C0603C102K5GAC Kemet C41 C42 C43 C14 capacitor 180 pF 1 50 V COG 0603 GRM1885C1H181FA01D Murata C16 capacitor 33 nF 10 50 V X7R 0603 C0603C 333K5RACTU Kemet C17 C28 Capacitor 2 2 uF 10 16 V X7R 0805 CCO805KKX7R7BB225 Yageo C18 capacitor 330 nF 10 50 V X7R 0603 C1608X7R1H334K TDK C20 C25 C26 C31 capacitor 470 nF 10 50 V X7R 0603 C1608X7R1H474K TDK C22 capacitor 1 2 nF 5 630 V COG 1206 C3216C 0G 2 122 TDK C24 capacitor 100 nF 10 50 V X7R 0603 C0603C 104K5RACTU Kemet C27 C33 capacitor 10 nF 10 50 V X7R 0603 C0603C 103K5RACTU Kemet C29 C35 capacitor 4 7 uF 10 25 V X7R 0805 TMK212AB7475KG T Taiyo Yuden C30 capacitor 220 pF 5 50 V COG 0603 C0603C 221 5GACTU Kemet C32 C34 Capacitor 2 2 nF 10 50 V X7R 0603 C0603C 222K5RAC7411 Kemet C36 C40 capacitor 220 nF 10 25 V X7R 0603 GRM188R71E224KA88D Murata C37 capacitor 100 pF 5 100 V COG 0603 GRM1885C2A101 A01 Murata C39 C44 C45 capacitor 100 nF 10 100 V X7R 0603 GRM188R72A104KA35D Murata D1 D2 diode 600 V 5 A TO220F 2P BY V25X 600 127 NXP Semiconductors D3 diode 800 V 1A UF 4006 E 3 73 Vishay D4 diode dual 200 V 10 A BY Q28X 200 127 NXP Semiconductors D5 D6 D7 D8 D11 diode 100 V 215 mA BAS 316 135 NXP D12 D17 Semiconductors D
19. 3FR 07270KL Yageo R68 resistor 4 7 kQ 1 100 mW 0603 RC0603FR 074K7L Yageo R69 resistor 50 mQ 1 1 W 2512 RL2512FK 070RO05L Yageo R74 resistor 100 Q 1 250 mW 1206 RC1206FR 07100RL Yageo T1 transformer PFC 500 uH 3 5 A RM10 750313715R01 Wurth T3 transformer LLC Lp 710 uH TRLEV25048A 150213A Itacoil Lk 204 uH M 3 48 N 5 545 U1 optocoupler not mounted CTR 160 320 SFH615A 4 Vishay U2 optocoupler CTR 160 320 SFH615A 4 Vishay U3 IC LED driver controller SSL4120T SSL4120T NXP U4 comparator dual LM2903P WR Texas Instruments U5 voltage regulator 1 70 mA TLVH431AQDBZR 215 NXP U6 opamp dual LM2904AVQDRQ1 Texas Instruments WB1 WB5 wire bridge green 5E AWG22 923345 05 C 3M WB2 WB4 wire bridge orange 3E AWG22 923345 03 C 3M WB3 wire bridge white 9E AWG22 923345 09 C 3M WB6 wire bridge yellow 4E AWG22 923345 04 C 3M UM10722 All information provided in this document is subject to legal disclaimers NXP B V 2014 All rights reserved User manual Rev 1 1 19 August 2014 35 of 39 NXP Semiconductors U M 10722 13 Appendix SSL4120DB 1123 90 W 1 9 A CC dimmable LED driver 13 1 1 Optional no load efficiency improvement UM10722 By default the no load power consumption P jino oag 2 7 W In case P ino loag reduction is required in this mode the modification in this appendix can be applied When a switch is placed between the PCB output and the LED load then the no load
20. 4 34 of 39 NXP Semiconductors UM10722 SSL4120DB 1123 90 W 1 9 A CC dimmable LED driver R35 R64 resistor 0 Q 1 100 mW 0603 AC0603FR 070RL Yageo R36 R72 resistor 27 KQ 1 100 mW 0603 RC0603FR 0727KL Yageo R38 R66 resistor 330 kQ 1 100 mW 0603 RC0603FR 07330KL Yageo R39 resistor 1 Q 1 250 mW 1206 RK73H2BTTD1R OOF KOA Speer R40 resistor 100 kQ 1 100 mW 0603 RC0603FR 07100KL Yageo R41 resistor 9 1 Q 1 330 mW 1206 ER 8BQF9R1V Panasonic R43 R55 resistor 8 2 KQ 1 100 mW 0603 RC0603FR 078K2L Yageo R46 R70 resistor 2 2 KQ 1 100 mW 0603 RC0603FR 072K2L Yageo R47 R71 resistor 3 3 kQ 1 100 mW 0603 RC0603FR 073K3L Yageo R49 resistor not mounted 15 kQ 1 100 mW RCO0603FR 0715KL Yageo 0603 R48 R50 resistor 10 kQ 1 100 mW 0603 RC0603FR 1310KL Yageo R51 resistor not mounted 3 9 KQ 1 250 mW RC1206FR 073K9L Yageo 1206 R52 resistor 82 KQ 1 100 mW 0603 RCO603FR 0782KL Yageo R53 resistor 9 1 KQ 1 100 mW 0603 RCO603FR 079K1L Yageo R56 resistor 6 2 KQ 1 100 mW 0603 RC0603FR 076K2L Yageo R57 resistor not mounted 10 kQ 1 100 mW RC0603FR 1310KL Yageo 0603 R59 resistor 59 KQ 1 100 mW 0603 RCO603FR 0759KL Yageo R61 resistor 1 8 kQ 1 125 mW 0805 RCO805FR 071K8L Yageo R62 resistor 24 KQ 1 250 mW 1206 RC1206FR 0724KL Yageo R65 resistor 27 Q 1 100 mW 0603 RC0603FR 0727RL Yageo R67 resistor 270 kQ 1 100 mW 0603 RC060
21. 9 D10 diode dual 200 V 225 mA BAV23S 215 NXP Semiconductors D13 diode zener 12 V 550 mW SOD323F BZX84J C12 115 NXP Semiconductors UM10722 All information provided in this document is subject to legal disclaimers NXP B V 2014 All rights reserved User manual Rev 1 1 19 August 2014 33 of 39 NXP Semiconductors UM10722 SSL4120DB 1123 90 W 1 9 A CC dimmable LED driver D14 diode dual 100 V 215 mA BAV99 215 NXP Semiconductors D15 diode zener not mounted 51 V 250 mW BZX84 C51 215 NXP SOT 23 Semiconductors D16 diode dual 90 V 215 mA BAW56 235 NXP Semiconductors D18 diode 1 kV 1 A SMX FM4007W W Rectron FH1 fuse 2 A slow SS 5H 2A APH Cooper Bussmann J1 mains inlet with solder tab 771W BX2 01 Qualtek 12 12 header side entry 5 08 mm 2 way 1508060000 Weidmuller L1 choke common mode 20 mH 1 5 A 744823220 Wurth L2 inductor 696 uH 2 A 750312186 Wurth L3 choke comm mode 47 uH 2 A 744841247 Wurth Q1 Q2 Q3 transistor MOSFET N 600 V 6 8 A FCPF7N60NT Fairchild Q4 Q7 transistor BJ T NPN 65 V 200 mA BC846B 215 NXP Semiconductors Q5 transistor not mounted BJ T NPN 65 V BC846B 215 200 mA Q6 transistor BJ T NPN 100 V 1 A BCP56 16 115 NXP Semiconductors R1 varistor 300 V 180 pF V300LA10P Littelfuse R2 resistor 1 Q 1 400 mW THT MBA02040C 1008FC100 Vishay R3 resistor 10 Q 1 400 mW THT MBA02040C 1009FC100 Vishay R4 resistor 1 k Q 1 400 mW THT MBA02
22. AC mains voltage RMS e P input power e Vous nom Nominal bus voltage few picmin PFC minimum switching frequency Table 2 shows the calculated minimum PFC switching frequency for many different conditions and three PFC inductances Frequencies higher than 380 kHz are limited by the PFC controller by means of valley skipping Table 2 Calculated PFC minimum switching frequency fewipfcymin V mains Pi Lprc 250 pH Lprc 500 pH Lprc 750 pH 90 V AC 99 W 116 kHz 58 kHz 39 kHz 90 V AC 33 W 347 kHz 173 kHz 116 kHz 120 V AC 99 W 177 kHz 89 kHz 59 kHz 120 V AC 33 W 532 kHz 266 kHz 177 kHz 230 V AC 99 W 269 kHz 134 kHz 90 kHz 230 V AC 33 W 809 kHz 404 kHz 270 kHz 277 V AC 99 W 154 kHz 77 kHz 51 kHz 277 V AC 33 W 462 kHz 231 kHz 154 kHz The PFC inductance is 500 uH Selecting a larger value can cause audible noise ata 300 V high mains voltage and full load because the PFC frequency drops significantly when the peak of the mains voltage is close to the bus voltage The PFC output voltage V pus is dimensioned for the use of a 450 V rated bus capacitor V bus nom 435 V the ripple is 10 V For 90 W a capacitor of 47 uF is sufficient when there are no holdup time mains voltage cycle skipping requirements The PFC on time tonwveateprc IS modulated to increase near the zero crossings of V mains The increase improves the THD and class C performance significantly The modulation signal is injected using capac
23. C 50 Hz 277 V AC 60 Hz Standby input power measurement P i standby 43 mW 117 mW 130 mW Imains 30 0 mA 35 4 mA 44 9 mA All information provided in this document is subject to legal disclaimers NXP B V 2014 All rights reserved User manual Rev 1 1 19 August 2014 24 of 39 UM10722 SSL4120DB 1123 90 W 1 9 A CC dimmable LED driver NXP Semiconductors Schematic 7 a3LNNOW LON WN ON A 24d ONS EE kA A a z i 2 7 S SUE SUE GUE gug OC ONS 2 ONS zorano EHW PHW THW ZHW _ _ z 8 A ZO ONS au ONE YYLSTAN 244 GND 27 ONS T T 0000 Q yuisyeay Au yuisjeay Alepuores PM 7M wits Ju T U 0p ISH ZSH o M TN zu GO Pe _ zorano sided S310H ONLLNNOW SANISLYIH Dier Jr Ad ozz or ee wigs mec 24 SC ozy ZO GND DCH A 09 LSOOSNS D4ddWOod T a H Odd GND T Gel T DddyNOSNS ONE gza e 2499199 SNIVWSNS T 00 OOS nien Uzo AHdNS D4dXNYSNS OaS GC E mort a oH 00 oes vo loztriss T a Lzy cy ety ven OS
24. T JoyD UUOD sUIeLU LOY Z3 pue T3 Q M a Ted AOSt Wee rs Hd HIV i e iy S auf i DITS 13 9 z 99 E DEE FEN UNST UNST lt an9 919 00 ery ou Ld SCH 8 8 uo 8 8 dd 00T AN Our 244 ONS 34d GND Led ges ON 4d GND o L 4d Lp H Se T E S mer o E T d T gtesva o ETY zu O9NZ4dD4 OWE E 4u 0zz Jo0Ed Te 10 sa eru e gp WOZ A oz ler uoz L ET ee ee ET 2 T Sr zo any vo PS TY z n ot 6 L S r dl LI E HI 00s SNIVW zsnga L K et LA al T 208n99 VST HWOZXZ iv SZ D Tam 009 XSZAAa 25 Tug Ss SC za d Y ZI H 969 Sid ONS 009 XSZAA8 Si ta moz sezava 80 6a lans lt K UOT sezava ery ota tand PFC stage ins inpu Fig 24 Ma NXP B V 2014 All rights reserved All information provided in this document is subject to legal disclaimers UM10722 Rev 1 1 19 August 2014 25 of 39 User manual UM10722 SSL4120DB 1123 90 W 1 9 A CC dimmable LED driver NXP Semiconductors
25. UM10722 SSL4120DB 1123 90 W 1 9 A CC dimmable isolated LED driver demo board Rev 1 1 19 August 2014 User manual Document information Info Content Keywords SSL4120T LED driver dimmable isolated demo board power factor corrector PFC resonant LLC burst mode Abstract The SSL4120DB1123 is a dimmable global mains 90 W LED driver demo board featuring the NXP Semiconductors SSL4120T IC The board has a two stage PFC resonant topology to achieve good THD performance mains current class C compliance over a wide mains input voltage range and output power range The S SL4120DB1123 can drive a large LED voltage current range NXP Semiconductors U M 10722 SSL4120DB 1123 90 W 1 9 A CC dimmable LED driver Revision history Rev Date Description v1 1 20140819 updated issue v 1 20130823 first issue Contact information For more information please visit htto www nxp com For sales office addresses please send an email to salesaddresses nxp com UM10722 All information provided in this document is subject to legal disclaimers NXP B V 2014 All rights reserved User manual Rev 1 1 19 August 2014 2 of 39 NXP Semiconductors U M 10722 SSL4120DB 1123 90 W 1 9 A CC dimmable LED driver 1 Introduction Warning Lethal voltage and fire hazard The non insulated high voltages that are present when operating this product constitute a risk of electric shock personal injur
26. UPREG D gt S A 7 Kyou R45 R42 R46 BAV99 33 ko 33 ka 2 2 ka R40 U4A 100 KQ D SE au P 4 u4c 9 R43 BC846B s LM2903PWR ROE 8 2 kQ a To D U4B T C LM2903PWR T R47 c33 R44 C34 3 3 KQ 10 nF ji 33ko T 2 2 nF A L 4 4 4 Vv GND pR Fig 12 LLC burst mode control diagram Vsnsep IS an input of the half bridge frequency control V snsfg is also used as input for the burst mode comparator U4B The PFC is always active including bust mode because bursting the PFC reduces the THD performance Therefore Vsnsour is kept above 0 5 V with a diode D14 in series with the collector on Q4 In burst mode the HB stage is stopped and started via pin SNSOUT the external All information provided in this document is subject to legal disclaimers NXP B V 2014 All rights reserved User manual Rev 1 1 19 August 2014 13 of 39 NXP Semiconductors U M 10722 UM10722 SL4120DB 1123 90 W 1 9 A CC dimmable LED driver comparator circuit sets the burst mode level and hysteresis parameters s Burst level set the half bridge frequency during burst frociburst With resistors R42 and R 44 set to 230 kHz e Burst hysteresis adjust the burst repetition frequency fhbcioursy With resistor R40 In addition to the hysteresis setting of the burst mode comparator other items influence the minimum burst frequency In general using a smaller hysteresis and a faster control loop results in fewer burst pu
27. XP Semiconductors U M 10722 SSL4120DB 1123 90 W 1 9 A CC dimmable LED driver 5 7 IC low voltage supply circuit An additional auxiliary winding on the PFC transformer provides the SSL4120T low voltage supply at pin SUPIC Because the bus voltage is regulated the PFC auxiliary winding with a full bridge rectifier generates a fixed supply Because the fixed supply is independent of V a itis also independent of the number of LEDs attached in series Once the PFC starts switching the PFC auxiliary winding almost immediately charges the SUPIC buffer capacitor C8 The capacitance C26 on pin SUPIC can be small and a short turn on delay is achieved D10 R39 BAV23S 10 T1 oo l C9 BAV23S 220 uF PFC transformer H E 10 3 Le 14 Woes Lue 13 GND PRI 13 pn LLC transformer 1 12 a a U3B S5L4120T 2 2 7 3 D q GND PRI if D8 D11 D13 SGND BAS316 BAS316 BZX84J C12 CFMIN K K RFMAX SNSCURHBC SNSFB SSHBC EN RCPROT Vv GND_PRI Fig 14 Low voltage supply diagram In case of fault no load conditions the PFC NMOST gate pulses are too short for the transformer to transfer energy to the IC supply V increases to V ymax and the auxiliary winding voltage of the LLC transformer also increases The auxiliary winding of the LLC transformer takes over the supply from the PFC auxiliary winding D13 is in series with D11 because the voltage of the LLC auxiliary winding
28. ance The THD in Fig 9 is about 13 UM10722 All information provided in this document is subject to legal disclaimers NXP B V 2014 All rights reserved User manual Rev 1 1 19 August 2014 11 of 39 NXP Semiconductors U M 10722 UM10722 SSL4120DB 1123 90 W 1 9 A CC dimmable LED driver 5 5 Half bridge and LLC output stage The resonant circuit is a LLC topology driven with a half bridge The output section consisting of two diodes D4 is the standard half bridge rectification configuration The LLC output is constant current regulated intended to drive LED modules as a current source The LLC design choices are based on the following targets e High efficiency at full load normal operating conditions e Large output voltage range support V bus Fig 10 Simplified LLC circuit with integrated transformer An integrated LLC transformer with m 3 5 m L L and Lp Lm L is used because a smaller frequency range is required to reach a lower V compared to m 5 or m 7 55 Vo Po tT ht ht T WI 50 Lm 1200 uH 40 3 mwa mees aT e Wl Mee 20 i ae 10 Ly 200 HH R toad 80 Q 5 i TI 100 120 140 160 180 200 220 240 260 280 300 fsw HBC kHz Fig 11 LLC voltage transfer for different m Lp L k values with 80 Q load Increasing the capacitance values of C15 and C23 currently 47 pF helps to reacha All information provided in this document is subj
29. cycle can be programmed by the application which enables adjustment of the average input power during a short circuit All information provided in this document is subject to legal disclaimers NXP B V 2014 All rights reserved User manual Rev 1 1 19 August 2014 20 of 39 NXP Semiconductors U M 10722 SSL4120DB 1123 90 W 1 9 A CC dimmable LED driver TELEDYNE LECROY 6 25 2013 4 58 37 PM C1 V snscurnec C2 Vacerot C3 V supic C4 Vssuecien Fig 21 Output short during start up oscillogram UM10722 All information provided in this document is subject to legal disclaimers NXP B V 2014 All rights reserved User manual Rev 1 1 19 August 2014 21 of 39 NXP Semiconductors U M 10722 SSL4120DB 1123 90 W 1 9 A CC dimmable LED driver 5 11 2 Output short during operation During operation the output capacitor is charged Diode D18 parallel to the LED current sense resistor limits the sense voltage and protects the sense resistor and error amplifier s Measure P1 freq Z3 P2 freq Z3 P3 P4 P5 Perms C2 value 119 456 kHz 331 54 kHz status wi wi 50 0 ms div Stop 3 86V 125MS 25MS sfEdge Negative TELEDYNE LECROY 6 26 2013 11 35 24 AM C1 Vsnscursc C2 Vacerot C3 lt V un C4 Vssuecen Fig 22 Output short with switch during operation at no load oscillogram 1 Before output short Vo V omax 2 Adaptive non overlap function de
30. ect to legal disclaimers NXP B V 2014 All rights reserved User manual Rev 1 1 19 August 2014 12 of 39 NXP Semiconductors U M 10722 UM10722 5 6 SSL4120DB 1123 90 W 1 9 A CC dimmable LED driver slightly lower output voltage level Burst mode LLC operation The large V and range is achieved by the implemented burst mode of the LLC stage Burst mode operation is implemented to increase the output power range Atl 100 burst is active under 28 V Atl 10 burst is active under 38 V The drawback of the burst mode is possible audible noise and ripple of the LED current causing visible flicker The resonant capacitor C7 is a film capacitor because ceramic Capacitors can cause audible noise To prevent visible flicker the burst frequency is kept well above 1 kHz Q2 FCPF7N60 to U3B 13 SSL4120T a 14 15 6 4 aile NC2 Q3 SNSCURHBC 5 2 18 Icon ia a pe A SE 19 I SUPIC e SE if R15 20 RFMAX SNSOUT LEAN E 1 15 ka S SNSFB a He H ssnecien S R16 S 23 TEI S YK koa T BAS316 c17 ei thor WBS Ze 10 0 SFH615A 4 I T n c c GND PRI il tt L R49 oer oe 3 c32 15 kQ SR 2 2 nF NM al e brd Si CND PRI GND PRI GND PRI S
31. gne F2 tonvoaterrc Fig 8 PFC signals at V mains 230 V AC Vo 48 V lo 1 9 A Channel F1 shows the frequency of the PFC gate drive signal V cateprc During the zero crossing of V mains the valley skipping of the PFC controller is visible Channel F2 shows the on time ton VGATEPEC of the PFC gate drive signal V GATEPFC The THD in Fig 8 is about 5 6 All information provided in this document is subject to legal disclaimers NXP B V 2014 All rights reserved User manual Rev 1 1 19 August 2014 10 of 39 NXP Semiconductors U M 10722 SSL4120DB 1123 90 W 1 9 A CC dimmable LED driver i i i L L i Measure P41 mean C4 P2 width C 1 P3 min C4 P4 max C4 P5 freq C1 P6 rms C2 value 435 738 V 636 35 ns 431 99 V 439 61V 278 332 kHz 164 4 MA status v wi w 5 00 ms div Stop oy 125MS 250MS s Edge Positive 6 00 V TELEDYNE LECROY 6 25 2013 12 39 14 PM Upper grid C1 Veprc C2 Imains C4 V bus Lower grid C3 V mains F 1 f vepro F2 tonverrc Fig 9 PFC signals oscillogram at V mains 230 V AC Vo 15 V lo 1 9A At low load the PFC frequency increases and the frequency limit of the PFC controller is reached At the mains angle when the maximum PFC frequency is reached the valley skipping is active A discrete step in the mains current is present The discrete steps and the flat line during the V mains Zero crossing mostly determine the THD and class C perform
32. ion PFC The PFC is a boost stage consisting of components T1 Q1 D2 and C6 In normal operation the PFC stage operates in boundary condition mode BCM with valley switching The section PFC controller in the SSL4120T data sheet describes the valley switching The design choices for the PFC stage are based on the following targets e A wide mains input voltage range from 90 V AC to 305 V AC e A large output power range must comply with the mains current harmonics class C requirements for lighting equipment of IEC 61000 3 2 The PFC choke inductance is maximized lowest PFC switching frequency for a large frequency range The maximum PFC frequency of the SSL4120T is limited to 380 kHz The controller keeps the PFC frequency under 380 kHz with valley skipping The operating mode of the PFC is DCM in case of valley skipping A large PFC frequency range prevents discrete steps in the mains current which can be caused by the valley skipping UM10722 All information provided in this document is subject to legal disclaimers NXP B V 2014 All rights reserved User manual Rev 1 1 19 August 2014 7 of 39 NXP Semiconductors U N 10722 SSL4120DB 1123 90 W 1 9 A CC dimmable LED driver The relation between the PFC inductance and the PFC minimum switching frequency is shown in the following equation 2 L _ Vmains X Vbus nom V mains PFC 2Xf sw pfcymin PixV bus nom Where e Lp prc PFC inductance e V mans
33. ions at any time and without notice This document supersedes and replaces all information supplied prior to the publication hereof Suitability for use NXP Semiconductors products are not designed authorized or warranted to be suitable for use in life support life critical or safety critical systems or equipment nor in applications where failure or malfunction of an NXP Semiconductors product can reasonably be expected to result in personal injury death or severe property or environmental damage NXP Semiconductors accepts no liability for inclusion and or use of NXP Semiconductors products in such equipment or applications and therefore such inclusion and or use is at the customer s own risk Applications Applications that are described herein for any of these products are for illustrative purposes only NXP Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification Customers are responsible for the design and operation of their applications and products using NXP Semiconductors products and NXP Semiconductors accepts no liability for any assistance with applications or customer product design It is customer s sole responsibility to determine whether the NXP Semiconductors product is suitable and fit for the customer s applications and products planned as well as for the planned application and use of customer s third party customer s C
34. itor C22 into the compensation network on pin COMPPFC The on time is represented by the voltage Vcompprc on pin COMPPFC UM10722 All information provided in this document is subject to legal disclaimers NXP B V 2014 All rights reserved User manual Rev 1 1 19 August 2014 8 of 39 NXP Semiconductors U M 10722 SSL4120DB 1123 90 W 1 9 A CC dimmable LED driver L1 BR1 2x20 mH 1 5A GBU806 TG 4 L2 2 696 WH 2 A WAN Ci 4 Vada ees Co 63 VY Ye 220 nF X 220 nF 2 1 d R7 R6 GND_PFC 1 5 MQ 1 5 MQ U3A ns ZS SSL4120T R24 R25 SNSAUXPFC SUPHV 390 kO OO SNSMAINS GATEPFC Se PGND SNSCURPFC K v COMPPFC SNSBOOST S z 630 V R29 GND_IC2 C29 R32 23 4 7 uF 39 KQ C24 100 nF GND_IC2 C25 470 nF GND_IC2 Fig7 PFC on time modulation with capacitor C22 UM10722 All information provided in this document is subject to legal disclaimers NXP B V 2014 All rights reserved User manual Rev 1 1 19 August 2014 9 of 39 NXP Semiconductors U M 10722 UM10722 SSL4120DB 1123 90 W 1 9 A CC dimmable LED driver Measure P1 mean C4 P2 width C1 P3 min C4 P4 max C4 P5 freq C1 P6 rms C2 value 435 922 V 1 91586 us 427 13 V 444 82 V 120 7373 kHz 450 mA wi wi 6 25 2013 12 36 38 PM Upper grid C1 V sateprc C2 Imainsi C4 V bus Lower grid C3 V mains F 1 f ver
35. lays the HBC oscillator to prevent hazardous switching of the half bridge MOSFETs The soft start capacitor C20 on pin SSHBC EN is discharged The SSL4120T tries to regulate the frequency to the border between capacitive and inductive mode of the LLC 3 Viecnugc 1 0 V is triggered via pin SNSCURHBC The oscillator frequency is immediately set to the maximum frequency 4 Half bridge running at the maximum frequency of 330 kHz until the RCPROT timer ends UM10722 All information provided in this document is subject to legal disclaimers NXP B V 2014 All rights reserved User manual Rev 1 1 19 August 2014 22 of 39 NXP Semiconductors U M 10722 SSL4120DB 1123 90 W 1 9 A CC dimmable LED driver 6 Mains input measurements 6 1 Efficiency Table5 Efficiency V mains Po 100 Po 50 Po 33 Po 25 100 V AC 60 Hz 90 3 87 8 89 4 88 1 120 V AC 60 Hz 91 3 88 3 89 9 88 2 230 V AC 50 Hz 93 1 89 0 90 1 88 0 277 V AC 60 Hz 93 0 88 8 89 3 87 1 6 2 Power factor Table 6 Power factor V mains Po 100 Po 50 Po 33 Po 25 100 V AC 60 Hz 0 9982 0 9966 0 9932 0 9872 120 V AC 60 Hz 0 9977 0 9937 0 9880 0 9799 230 V AC 50 Hz 0 9894 0 9698 0 9425 0 9078 277 V AC 60 Hz 0 9738 0 9198 0 8629 0 7927 6 3 Mains current total harmonic distortion Table 7 Mains current total harmonic distortion V mains Po 100 Po 50 Po 33 Po 25 100 V AC
36. lses higher burst frequency and low output current ripple Table 3 Minimum burst mode frequency tuning Item Effect hysteresis burst mode comparator less hysteresis gt fewer pulses gt higher fourst min LLC output capacitor less capacitance gt fewer pulses gt higher fourstimin LLC CC control loop speed more gain gt fewer pulses gt higher fourstimin The control loop gain is influenced by the following board components The optocoupler current transfer ratio CTR R70 C41 C40 R65 R61 U6B LLC circuit C19 R15 Reemax C14 Ccemin STT wot e e k antl e pe ee een enee eeng eee Saas SS ben A eena ee P1 mean C2 P2 max C2 P3 mean C1 P4 max C1 P5 freq C2 P6 rms C2 166 8 mA 738 mA 16 25 V 18 7V 1 9555486 kHz 2135mA wi A wi imebase 0 00 ma noer II 500 Uusidivl Single 0 00V 1 00MS 200MS s Edge Positive TELEDYNE LECROY 6 25 2013 4 03 17 PM Upper grid C1 V C2 1 C3 Vsnsea C4 V up Lower grid Z1 zoom C1 Z2 zoom C2 Z3 zoom C3 Z4 zoom C4 Fig 13 Output signals oscillogram at V 16 V lo 0 19 A real LED load The minimum burst frequency fourstiminy OCCUTS at condition V omin and armi Because fourstimin iS well above 1 kHz therefore visible flicker is not an issue All information provided in this document is subject to legal disclaimers NXP B V 2014 All rights reserved User manual Rev 1 1 19 August 2014 14 of 39 N
37. mo board connections vs sssssssess vesse ete 5 Line voltage and LED module eee 5 Dimming control secondary Side eee 5 Functional description sss sese sssess vesse vssesessesres 6 SSL4120T controller IC 6 Board topology sees sees eee eee 6 EMU TGP sasssceccsncrseceijarnarcehanantivtestacanantnatevieaeates 7 Power Factor Correction BECH 7 Half bridge and LLC output stage ue 12 Burst mode LLC operation sse sees eee 13 IC low voltage supply CirCUit eee 15 LLC feedback Control loop 17 LED current Control 18 Output voltage Control 19 Output short Conditions sss esse esse eee ete 20 Output short at StartUp oo eee eee 20 Output short during operaton ee 22 Mains input measurements vssssesss sss vesessvevess 23 Sne 23 Power facht 23 Mains current total harmonic distortion 23 Mains current harmoniser ee 24 No load input power 24 Standby input power uo eect eee eee eee 24 Schematic vvsvesvpvesvggsyvsvrssyegovesyegvesveyragyeyrgyesve 25 PCB layOut ccccsesse sees eneeeee eens 27 Transformer information 28 PFC Iransiomer sss sss ee esse e resse reer ee eee ee ee 28 Integrated LLC transformer sese eee ee 29 EMI measurement sss ssssssssssssss sss ss sss ss sss se sssesss 30 Thermal measurement sss ssss vesse esse sss vs sees ve sees 32 Bill Of Materials BOM ss sssssssssssssss sassa 33 APPeCN EE 36 Optional no load efficiency improvement 36 S G 37 Legal information
38. n of the LED driver under all conditions COMPPFC SNSBOOST SNSMAINS RCPROT SNSAUXPFC SSHBC EN SNSCURPFC SNSFB SNSOUT RFMAX SUPIC CFMIN GATEPFC SGND PGND SUPREG GATELS n c SUPHV GATEHS aaa 003401 Fig 5 SSL4120T IC pin out 5 2 Board topology The board topology is a PFC boost stage to meet the class C lighting requirements and an LLC resonant stage UM10722 All information provided in this document is subject to legal disclaimers NXP B V 2014 All rights reserved User manual Rev 1 1 19 August 2014 6 of 39 NXP Semiconductors U M 10722 SSL4120DB 1123 90 W 1 9 A CC dimmable LED driver D1 GND SEC BYV25X 600 S SS L2 T1 Cl 696 pH 2A 500 up D2 100 pF Y L1 BR1 BYV25X 600 2x20 mH 1 5A GBU806 gt VBUS2 c6 Ge 47 uF 450 V R10 R9 0 27 Q 0 27 Q VBUS2 GND_PRI 2 Q FCPF7N60 13 Lp 710 uH L 204 pH D4 Np Nsec 5 545 BYQ28X 200 L3 47uH 2A LED e 100 V l aN 2 peg c44 0 050Q 1W L D18 FM4007W LA C39 uF 100 nF OV 100 V Less GND_SEC Q3 FCPF7N60 i s 3 3 nF Y GND_PRI Fig 6 Large signal path of the board 5 3 EMI filter The EMI filter consists of a differential mode inductor L2 and a common mode inductor L1 The differential filter also includes C2 C3 C4 and C5 The common filter capacitors are Cl and C10 5 4 Power Factor Correct
39. ntrol secondary side The dimming controller must connect to the DIM input connector J 3 The DIM input supports dimming control in two ways e 1V to 10 V interface an external voltage applied to the DIM input e External pull down resistor The output is at maximum output current when the DIM input is not connected When the DIM input voltage is lower than 1 0 V the output current is 10 of lo max Rpm Vom 0 KQ to 100 KO 1V to 10 V DC c 1V to 10V DIM interface d External pull down resistor DIM interface Fig 4 DIM input connections R INT 4 7 kO R pm 100 kQ Logarithmic All information provided in this document is subject to legal disclaimers NXP B V 2014 All rights reserved Rev 1 1 19 August 2014 5 of 39 UM10722 User manual NXP Semiconductors U M 10722 SSL4120DB 1123 90 W 1 9 A CC dimmable LED driver 5 Functional description The SSL4120DB1123 LED driver demo board is a dimmable constant current LED driver This chapter describes some specific design choices for the LED driver This driver board was especially designed to drive a wide LED voltage current range More information about the SSL4120T IC application is described in the SSSL4120T data sheet and the AN11227 application note 5 1 SSL4120T controller IC The SSL4120T is a very robust and reliable PFC resonant controller containing many features The various internal protections ensure fail safe operatio
40. ommended SES 019aab174 a Isolated b Non isolated Fig 2 Variable transformer isolation symbols 3 Board specifications Table 1 Electrical specifications Symbol Description Value Condition V mains mains voltage AC 90 V to 300 V AC ta on turn on delay time lt 300 ms P o max maximum output power 90 W Vo 48 V Vo output voltage 15 V to 48 V CC mode V o max maximum output voltage 49 V fault mode no LED l output current 0 190 to 1 9 A DIM 10 to 100 Alo AV mans line regulation lt 3 Alo AV o load regulation lt 3 V Dim DIM input voltage 1Vto10V n efficiency gt 90 full load PF power factor gt 0 95 full load THD total harmonic distortion lt 10 full load lt 20 quarter load P aun fault mode input power lt 3 0 W no load P istano standby input power lt 0 2 W 1 Average 2 Pistanaby is Measured with pin SSHBC EN shorted to ground UM10722 All information provided in this document is subject to legal disclaimers NXP B V 2014 All rights reserved User manual Rev 1 1 19 August 2014 4 of 39 UM10722 SL4120DB 1123 90 W 1 9 A CC dimmable LED driver NXP Semiconductors 4 Demo board connections 4 1 Line voltage and LED module The mains voltage must connect to the IEC C6 type input connector J 1 The LED module must connect to the LED output connector J 6 line Toten Ps cht T die neutral Fig 3 Mains connection and LED wiring 4 2 Dimming co
41. tion purposes only It shall be operated in a designated test area by personnel that is qualified according to local requirements and labor laws to work with non insulated mains voltages and high voltage circuits The product does not comply with IEC 60950 based national or regional safety standards NXP Semiconductors does not accept any liability for damages incurred due to inappropriate use of this product or related to non insulated high voltages Any use of this product is at customer s own risk and liability The customer shall fully indemnify and hold harmless NXP Semiconductors from any liability damages and claims resulting from the use of the product Translations A non English translated version of a document is for reference only The English version shall prevail in case of any discrepancy between the translated and English versions 15 3 Trademarks Notice All referenced brands product names service names and trademarks are property of their respective owners NXP B V 2014 All rights reserved User manual Rev 1 1 19 August 2014 38 of 39 NXP Semiconductors UM10722 SSL4120DB 1123 90 W 1 9 A CC dimmable LED driver 16 Contents 13 1 1 14 15 15 1 15 2 15 3 Introduction ssssssussassnsnnnunnnnnnnnunnnnnnnnnnannnnnnnnannnnnnnna 3 Features and benefits sse enesenn 3 Safety Waring sse sssss vesse veve sss sese ss sss veseesrese A Board Specifications scsse sess 4 De
42. upler triggers the SSL4120T controller to disable the PFC and the HBC stage via pin SNSOUT The PFC and HBC are disabled when Vsnsour lt 0 3 V After V drops below Vos T V 1 the Vsnsour rises to the normal operating level All information provided in this document is subject to legal disclaimers NXP B V 2014 All rights reserved User manual Rev 1 1 19 August 2014 36 of 39 NXP Semiconductors U M 10722 SSL4120DB 1123 90 W 1 9 A CC dimmable LED driver 14 References Table 14 Table of references Reference ID Description 1 SSL4120 data sheet Rev 2 1 November 2012 2 SSL8516T data sheet GreenChip PFC and flyback controller Rev 1 5 May 2014 3 UM10776 user manual SSL8516DB1195 75 W 1 6 A dimmable LED driver Rev 1 6 May 2014 4 AN11227 SSL4120 resonant power supply control IC with PFC Rev 1 27 November 2012 5 Flicker parameters for reducing stroboscopic effects from solid state lighting systems ASSIST volume 11 issue 1 may 2012 UM10722 All information provided in this document is subject to legal disclaimers NXP B V 2014 All rights reserved User manual Rev 1 1 19 August 2014 37 of 39 NXP Semiconductors UM10722 SSL4120DB 1123 90 W 1 9 A CC dimmable LED driver 15 Legal information 15 1 Definitions Draft The documentis a draft version only The content is still under internal review and subject to formal approval which may result in modifications
43. ustomers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products NXP Semiconductors does not accept any liability related to any default damage costs or problem which is based on any weakness or default in the customer s applications or products or the application or use by customer s UM10722 All information provided in this document is subject to legal disclaimers third party customer s Customer is responsible for doing all necessary testing for the customer s applications and products using NXP Semiconductors products in order to avoid a default of the applications and the products or of the application or use by customer s third party customer s NXP does not accept any liability in this respect Export control This document as well as the item s described herein may be subject to export control regulations Export might require a prior authorization from competent authorities Evaluation products This product is provided on an as is and with all faults basis for evaluation purposes only NXP Semiconductors its affiliates and their suppliers expressly disclaim all warranties whether express implied or statutory including but not limited to the implied warranties of non infringement merchantability and fitness for a particular purpose The entire risk as to the quality or arising out of the use or performance of this product remains
44. y death and or ignition of fire This product is intended for evaluation purposes only It shall be operated in a designated test area by personnel qualified according to local requirements and labor laws to work with non insulated mains voltages and high voltage circuits This product shall never be operated unattended The SSL4120DB1123 demo board is a dimmable LED driver example using a PFC and an LLC stage This manual describes the specification and use of the SSL4120DB1123 board E EMI L 8 G TI LED a _ Oo D d O SSL4120T i PFC HB controller IC DIM setting Fig 1 Demo board block diagram 1 1 Features and benefits e Efficient PFC and LLC topology e Large input voltage range e Short turn on delay time e Low mains current harmonics e LLC stage with large output voltage range e Dimmable e Single layer PCB 146 x 60 mm wave soldering UM10722 All information provided in this document is subject to legal disclaimers NXP B V 2014 All rights reserved User manual Rev 1 1 19 August 2014 3 of 39 NXP Semiconductors U N 10722 SSL4120DB 1123 90 W 1 9 A CC dimmable LED driver 2 Safety warning The board must be connected to mains voltage Avoid touching the demo board while it is connected to the mains voltage An isolated housing is obligatory when used in uncontrolled non laboratory environments Galvanic isolation of the mains phase using a variable transformer is always rec

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