UM10840 - NXP Semiconductors
Contents
1. 5 aaa 015524 Ripple 4 3 2 4 EIERE CNN NEST 0 170 190 210 230 250 Vmains V RMS Fig 9 Low frequency output ripple as a function of Vimains UM10840 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2015 All rights reserved User manual Rev 1 1 12 January 2015 12 of 21 NXP Semiconductors U M1 0840 SSL5021BDB1267 230 V 6 W candle buck LED driver demo board 7 6 ElectroMagnetic Interference EMI Figure 10 shows the conducted EMI result of the SSL5021BDB1267 demo board EBENE ke ESs FERES LI LU HA d Ell Cnt H Li MNITAT a Line Lt d gier mead litre di eae OU Sp Lilli II TUT J D 5526 S Ae E e b Neutral Fig 10 Conducted EMI UM10840 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2015 All rights reserved User manual Rev 1 1 12 January 2015 13 of 21 jenuew Joen Soz Menuer zL CL aen SJ WIE OSIP Jea oj joe qns s jueuunoop Su ui PEPIAOI uoneuuojul y LC JO HL Fouss Su IN SL NN SJOJOnpuooIUJeS dXN Ov80LIAn 8 Schematic 8 1 Functional schematic Fig 11 270 mains in L1 R4 470 KQ C8 16V R3 e VBUS D Mu 510 kQ E BUJ100LR TO92 R2 ai BC857A SOT23 ct C3 2 2uF 100nF 4002. 9 Bill Of Materials BOM 9 1 Functional BOM Figure 11 shows the functional application as it is implemented on this demo board It has a component count of 19 items including the IC Table 2 contains the corresponding BOM Table 2 Functional bill of materials Reference Description and values Part number Manufacturer BD1 bridge rectifier 1000 V 500 mA MD5S Rectron C1 capacitor 2 2 uF 20 400 V ECA2GHG2R2 Panasonic C3 capacitor 100 nF 10 450 V CL21 450V 0 1pF K AIDI C5 capacitor 330 pF 10 50 V X7R 0805 C8 capacitor 2 2 uF 10 96 16 V X7R 0805 CCO805KKX7R7BB225 Yageo C9 capacitor 100 nF 10 96 200 V X7R C1206C104K2RACTU KEMET 1206 D2 diode 600 V 1A ES1J Fairchild D3 diode Zener 15 V 250 mA BZX384 C15 NXP Semiconductors L1 inductor 1 mH 170 mA 22R105C Murata L2 inductor 6 8 mH 180 mA TSL1112RA 682JR18 PF TDK Q1 transistor PNP 45 V 100 mA BC857A 215 NXP Semiconductors Q2 transistor NPN 700 V 0 8 A BUJ100LR NXP Semiconductors R1 resistor 27 Q 10 96 2 W THT EMC2 27ROK Welwyn Components R2 resistor 680 Q 5 96 100 mW 0805 E R3 resistor 510 kQ 5 250 mW 1206 S R4 resistor 470 kO 5 96 250 mW 1206 R5 resistor 5 6 Q 1 96 250 mW 1206 R9 resistor 330 kQ 5 96 250 mW 1206 U2 LED driver TSOP6 SSL5021BTS NXP Semiconductors UM10840 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2015 All rights reserved Use
3. 3 96 100 Hz AlLep AILED nom vmains line regulation 1 0 at Vmains 10 96 AlLep AlLED nom VLED load regulation 0 5 96 at Vi gp 10 n efficiency 89 at 230 V AC 50 Hz PF power factor 0 55 at 230 V AC 50 Hz Toper operating temperature 40 C to 105 C board dimensions 60 mm x 40 mm conducted electrostatic EN55015 Interference EMI IEC61000 3 2 class D for Pin lt 25 W limit Figure 2 shows the dimensions of the demo board sizes in mm aaa 015516 Fig 2 SSL5021BDB1267 demo board dimensions UM10840 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2015 All rights reserved User manual Rev 1 1 12 January 2015 5 of 21 NXP Semiconductors UM10840 SSL5021BDB1267 230 V 6 W candle buck LED driver demo board 4 Board photographs UM10840 b Bottom view Fig 3 SSL5021BDB1267 demo board photographs E204460 DI 94V 0 oHe we 3999 000 33852 aaa 015518 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2015 All rights reserved User manual Rev 1 1 12 January 2015 6 of 21 NXP Semiconductors U M1 0840 SSL5021BDB1267 230 V 6 W candle buck LED driver demo board 5 Board connections UM10840 The SSL5021BDB1267 demo board is optimized for a 230 V 50 Hz supply It is designed to work with multiple LEDs or an LED m
4. 5 Efficiency as a function of V mains Input power aaa 015521 6 8 Pin W 6 6 ee a ree ee ee ee ee ee 6 4 6 2 5 8 170 190 210 230 250 270 Vmains V RMS Fig 6 Power factor as a function of V mains All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2015 All rights reserved User manual Rev 1 1 12 January 2015 10 of 21 NXP Semiconductors UM10840 SSL5021BDB1267 230 V 6 W candle buck LED driver demo board 7 3 Line regulation ILED mA Fig 7 75 aaa 015522 73 71 69 67 65 170 190 210 230 Line regulation 250 270 Vmains V RMS 7 4 Load regulation ILED mA Fig 8 75 0 74 5 74 0 73 5 73 0 72 5 72 0 aaa 015523 02 3 60 65 Vmains 230V Vmains 170 V Vmains 265 V 70 75 80 85 Load regulation 90 95 100 Vuen V UM10840 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2015 All rights reserved User manual Rev 1 1 12 January 2015 11 of 21 NXP Semiconductors U M1 0840 SSL5021BDB1267 230 V 6 W candle buck LED driver demo board 7 5 Output ripple
5. V 450 V D3 BZX384 C15 N 2 2 uF SOD323 GND Vv GND FLOAT ANODE E3 LED conn CATHODE EA ES1J SSL5021BDB1267 demo board schematic diagram aaa 015527 p4 amp oq ouiep J8AUp Q31 I9ng IPULI M 9 A OEZ Z972 LAAALZOSTISS orgo LNN SIOJONPUODIWIS dXN jenuew Joen SoZ Menuer zL CL aen SJ WIE OSIP Jea oj joe qns si jueuunoop Su ui PEpIAOI uoneuuojul Iv LZ JO SL Ovso0lLWn pamasa Syu Ily S LOZ AN S4O ONPUDdIWES dXN 8 2 Demo board schematic K1 1715022 1 2 mains in Fig 12 SSL5021BDB1267 demo board schematic VBUS R3 AWG18 AWG18 510 kQ R7 R8 o O el E5 E1 150kQ 150kQ Q2 n m n m BUJ100LR TO92 R2 680 Q R6 Q1 oo AWG18 RI AWG18 BC857A o o SOT23 E6 270 E c3 100 nF L2 450 V zi ie c5 6 8 mH ANG18 E3 D3 c8 330 pF BZX384 C15 2 2 pF 50 V C9 Ere SOD323 16 V 100 nF T R5 SE 1715022 UL 1 1 560 2 R9 R10 330 kO LED 220 GND FLOAT conn m Lues E8 D2 AWG18 E4 bd ES1J GND aaa 015528 p4 amp oq ouiep J9AUp Q31 I9ng IPULI M 9 A OEZ Z927 LAAALZOSTISS Orso LNN SIOJONPUODIWIS dXN NXP Semiconductors UM10840 SSL5021BDB1267 230 V 6 W candle buck LED driver demo board
6. 0603 R7 R8 resistor not mounted 150 kQ 5 96 S 250 mW 1206 R9 resistor 330 kQ 5 250 mW 1206 R10 resistor not mounted 1 956 250 mW 1206 U2 LED driver TSOP6 SSL5021BTS NXP Semiconductors UM10840 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2015 All rights reserved User manual Rev 1 1 12 January 2015 17 of 21 NXP Semiconductors U M1 0840 SSL5021BDB1267 230 V 6 W candle buck LED driver demo board 10 Board layout aaa 015530 b Bottom view Fig 13 SSL5021BDB1267 demo board layout UM10840 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2015 All rights reserved User manual Rev 1 1 12 January 2015 18 of 21 NXP Semiconductors U M1 0840 SSL5021BDB1267 230 V 6 W candle buck LED driver demo board 11 Abbreviations Table 4 Abbreviations Acronym Description EMI ElectroMagnetic Interference LED Light Emitting Diode OCP OverCurrent Protection OTP OverTemperature Protection PF Power Factor SSL Solid State Lighting MELF Metal Electrode Leadless Face 12 References 1 SSL5021BTS data sheet Compact low ripple buck LED driver IC UM10840 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2015 All rights reserved User manual Rev 1 1 12 January 201
7. 5 19 of 21 NXP Semiconductors UM10840 SSL5021BDB1267 230 V 6 W candle buck LED driver demo board 13 Legal information 13 1 Definitions Draft The document is a draft version only The content is still under internal review and subject to formal approval which may result in modifications 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 13 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 NXP Semiconductors takes no responsibility for the content in this document if provided by an information source outside of NXP Semiconductors 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 d
8. 840 1 Introduction SSL5021BDB1267 230 V 6 W candle buck LED driver demo board WARNING A A Lethal voltage and fire ignition hazard 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 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 This user manual describes the operation of the SSL5021BDB1267 demo board featuring LED driver SSL5021BTS in a 230 V 6 W non isolated application The SSL5021BDB1267 demo board is designed for driving LED loads from 40 V to 88 V with a nominal value of 80 V The PCB dimensions are compatible with candle applications The SSL5021BDB1267 demo board provides a simple and effective solution with a low output current ripple and high efficiency for Solid State Lighting SSL applications 1 1 Features UM10840 Low cost design Candle form GU 10 applications Open LED string protection optional Short LED string protection OverCurrent Protection OCP OverTemperature Protection OTP Efficiency gt 88 at 230 V AC nominal input Compliant with IEC61000 3 2 harmonic standard Compliant with EN55015 conducted EMI All information pro
9. amages 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 descriptions 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 and its suppliers accept 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 Customer
10. 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 evaluation 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 13 3 Trademarks Notice All referenced brands product names service names and trademarks are the property of their respective owner
11. crease of approximately 1 96 At open output the converter is operating but the output voltage remains well below the 200 V voltage rating of C9 By default the OVP option is not mounted on the SSL5021BDB1267 demo board LED current and sense resistors To optimally profit from the excellent current stability of the SSL5021BTS over temperature 50 ppm MELF type resistors are recommended to sense the LED current The output current stability range drops to 3 compared to 7 96 over the full temperature range for normal 200 ppm 1206 type resistors In most low power low cost applications with LED currents 150 mA 200 ppm resistors are fine l gp ay 0 4 R5 can adjust the average LED current If the change is small 10 95 changing the inductor is not required At the lowest mains voltage the maximum ON time of Q1 must not exceed 15 us All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2015 All rights reserved User manual Rev 1 1 12 January 2015 9 of 21 NXP Semiconductors U M1 0840 SSL5021BDB1267 230 V 6 W candle buck LED driver demo board 7 Performance UM10840 7 1 7 2 Vmains 170 V to 265 V AC 25 C ILEp 71 mA typical Vi gp 80 V unless otherwise specified Efficiency 95 aaa 015520 n 92 oS EE 86 83 80 170 190 210 230 250 Vmains V RMS Fig
12. ficient The non operating output voltage must not be equal to or exceed the voltage set by the operating mode It is good practice to set the level in non operating mode 5 V to 10 V lower than in operating mode All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2015 All rights reserved User manual Rev 1 1 12 January 2015 8 of 21 NXP Semiconductors U M1 0840 UM10840 6 4 SSL5021BDB1267 230 V 6 W candle buck LED driver demo board IC operating with OVP option When the voltage in the non operating mode is set to a safe level for the output capacitor the voltage in the operating mode can be set The DEMOVP pin detects overvoltage when the optional resistors R7 and R8 are placed and a 5 6 kO resistor replaces R6 It triggers when four consecutive high frequency cycles at 1 8 V are detected at the DEMOVP pin V R7 RS R6 out 1 8 x i sets the output voltage The output voltage must never exceed the rated DC voltage of the output capacitor For resistor R6 do not use a value that exceeds 5 6 kQ The DEMOVP pin is a high ohmic input It is sensitive to disturbance causing false OVP triggering IC operating without OVP option When the OVP option is not used resistor R6 can be shorted and R7 and R8 can be set to not mounted As a result of shorting the DEMOVP pin switching of the converter does not have proper valley detection anymore giving an efficiency de
13. odule Under the expected conditions the output current is 71 mA when using an LED string with an 80 V forward voltage Vg The current can be adjusted using resistor R5 and R10 in parallel if a more accurate adjustment is required An 80 V LED voltage gives a good efficiency and line regulation at 230 V AC K1 is the connection for the mains voltage Anode and cathode at K2 are the connections for the LED load Figure 4 shows the connections 120V SSL5021BDB1268 230VDX 58L5021BDB1267 aaa 015519 Fig 4 SSL5021BDB1267 board connections All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2015 All rights reserved User manual Rev 1 1 12 January 2015 7 of 21 NXP Semiconductors U M1 0840 SSL5021BDB1267 230 V 6 W candle buck LED driver demo board 6 Functional description UM10840 6 1 6 2 6 3 Input filtering Capacitors C1 and C3 and inductor L1 filter the switching current from the buck converter to the line Capacitors C1 and C3 also provide a low impedance path for the switching current The value of C1 is selected to have no more than a 30 ripple on the bus voltage at 15 of typical mains The input series resistance of 27 Q and capacitor C1 together provide adequate protection against transient surge voltages For immunity to the line surge the input resistance is added see Figure 12 Do not omit this resistor or lower i
14. r manual Rev 1 1 12 January 2015 16 of 21 NXP Semiconductors UM10840 SSL5021BDB1267 230 V 6 W candle buck LED driver demo board 9 2 Demo board BOM Figure 12 shows the actual application as it is implemented on this demo board Table 3 contains the corresponding BOM Table3 SSL5021BDB1267 demo board bill of materials Reference Description and values Part number Manufacturer BD1 bridge rectifier 1000 V 500 mA MD5S Rectron C1 capacitor 2 2 uF 20 96 400 V ECA2GHG2R2 Panasonic C3 capacitor 100 nF 10 96 450 V CL21 450V 0 1guF K AIDI C5 capacitor 330 pF 10 96 50 V X7R 0805 C8 capacitor 2 2 uF 10 96 16 V X7R 0805 CC0805KKX7R7BB225 Yageo C9 capacitor 100 nF 10 96 200 V X7R C1206C104K2RACTU KEMET 1206 D2 diode 600 V 1A ES1J Fairchild D3 diode Zener 15 V 250 mA BZX384 C15 NXP Semiconductors K1 K2 connector terminal block 5 00 mm 1715022 Phoenix L1 inductor 1 mH 170 mA 22R105C Murata L2 inductor 6 8 mH 180 mA TSL1112RA 682JR18 PF TDK Q1 transistor PNP 45 V 100 mA BC857A 215 NXP Semiconductors Q2 transistor NPN 700 V 0 8 A BUJ100LR NXP Semiconductors R1 resistor 27 Q 10 2 W THT EMC2 27ROK Welwyn Components R2 resistor 680 Q 5 96 100 mW 0805 x R3 resistor 510 kQ 5 250 mW 1206 R4 resistor 470 kQ 5 250 mW 1206 R5 resistor 5 6 Q 1 96 250 mW 1206 R6 resistor 0 Q
15. rs cee eee eee 20 Trademarks 20 Gontents ebe ro Rn Rn hy nuin 21 Please be aware that important notices concerning this document and the product s described herein have been included in section Legal information NXP Semiconductors N V 2015 All rights reserved For more information please visit http Awww nxp com For sales office addresses please send an email to salesaddresses nxp com Date of release 12 January 2015 Document identifier UM10840
16. s GreenChip is a trademark of NXP Semiconductors N V NXP Semiconductors N V 2015 All rights reserved User manual Rev 1 1 12 January 2015 20 of 21 NXP Semiconductors UM10840 SSL5021BDB1267 230 V 6 W candle buck LED driver demo board 14 Contents 13 1 13 2 13 3 14 Introduction 000 00 c eee eee eee 3 Features 3 Safety warning 0 c eee eee eee 4 Specifications 00 ee eee eee eee 5 Board photographs 6 Board connections Ls 7 Functional description 8 Input filtering RR RiReERR E 8 Efficiency improvement for universal mains 8 Open load protection 0 8 LED current and sense resistors 9 Performance cc or 10 Efficiency wc Ate Rea eee ieee ERI 10 Input power 10 Line regulation 0 0 eee eee 11 Load regulation 02 e ae 11 Output ripple 00 e eee eee 12 ElectroMagnetic Interference EMI 13 Schemalic vue ge leenfee 9 nv 14 Functional schematic 14 Demo board schematic 15 Bill Of Materials BOM 16 Functional BOM anaana n ann 16 Demo board BOM ilsuluuuu 17 Board layout leeeeseesese 18 Abbreviations auansnnnnnnnnnnnnn 19 References slee ess s 19 Legal information sLee 20 Definitions eee 20 Disclaime
17. s 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 Customers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products UM10840 All information provided in this document is subject to legal disclaimers 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 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 Evalua
18. tion 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 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
19. ts value Efficiency improvement for universal mains The SSL5021BTS is supplied via start up resistors R3 and R4 To keep the temperature low and retain ease of adjustment of the desired value the power losses in these resistors are divided over the two resistors For mains voltages up to 120 V AC a single 1206 size SMD resistor R3 is sufficient The maximum voltage and the power rating are not exceeded Open load protection The driver board is protected when the LED load is accidentally left open The open load protection is a non latched protection It recovers when the LED string is reconnected The LED current is not controlled when reconnecting which could destroy the LED string Therefore turn off the mains before reconnecting the LED load Two circuits set the open load output voltage One circuit R9 sets the open load output voltage when the IC does not operate because of a defect The other circuit OVP option sets it when the IC is operating normally In all cases the output voltage must never exceed the rated DC voltage of the output capacitor IC not operating The voltage divider consisting of resistors R3 and R4 sets the output voltage from the VCC pin of the IC to the GND pin of the IC and resistor R9 Uum 13 R9 Vout 1 our R3 R4 R9 1 nx2 5 V 2x 190 pA to turn on the LEDs n is the number of LEDs in series at the output As a rule of thumb limit resistor R9 to In this way the voltage is not suf
20. vided in this document is subject to legal disclaimers NXP Semiconductors N V 2015 All rights reserved User manual Rev 1 1 12 January 2015 3 of 21 NXP Semiconductors U M1 0840 SSL5021BDB1267 230 V 6 W candle buck LED driver demo board 2 Safety warning UM10840 The demo board input is connected to the mains voltage Avoid touching the board while it is connected to the mains voltage and when it is in operation An isolated housing is obligatory when used in uncontrolled non laboratory environments Galvanic isolation from the mains phase using a fixed or variable transformer is always recommended Figure 1 shows the symbols on how to recognize these devices 019aab173 019aab174 a Isolated b Not isolated Fig 1 Isolation symbols All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2015 All rights reserved User manual Rev 1 1 12 January 2015 4 of 21 NXP Semiconductors U M1 0840 SSL5021BDB1267 230 V 6 W candle buck LED driver demo board 3 Specifications Table 1 lists the specification of the SSL5021BDB1267 demo board Table 1 SSL5021BDB1267 specifications Symbol Parameter Value V mains AC mains supply voltage 230 V AC 10 Pout output power 5 7 W Vuen output voltage 40 V to 88 V 80 V nominal hen output current 71 mA ILED ripple output current ripple
21. za UM10840 p SSL5021BDB1267 230 V 6 W candle non isolated low ripple buck LED driver demo board with bipolar switch Rev 1 1 12 January 2015 User manual Document information Info Content Keywords SSL5021BDB1267 SSL5021BTS LED driver non isolated buck topology candle form applications TSOP6 package bipolar switch Abstract This user manual describes the performance technical data and the connection of the SSL5021BDB1267 demo board The demo board uses a bipolar switching transistor in a non isolated buck topology The SSL5021BTS is an NXP Semiconductors driver IC in a TSOP6 package It is intended to provide a low cost small form factor LED driver design This SSL5021BDB1267 demo board is designed for candle form applications It operates at 230 V AC with an output voltage of approximately 80 V NXP Semiconductors UM10840 Revision history SSL5021BDB1267 230 V 6 W candle buck LED driver demo board Rev Date Description VI 20150112 updated issue v 1 20141022 first issue Contact information For more information please visit http www nxp com For sales office addresses please send an email to salesaddresses nxp com UM10840 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2015 All rights reserved User manual Rev 1 1 12 January 2015 2 of 21 NXP Semiconductors U M1 0
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