NCV97310 Evaluation Board User`s Manual
Contents
1. be 1 I A I I I PS duty C3 P6 min 2 089298 MHz max 2 343767 MHz sdev 71 94383 kHz num 13 271 3 status a Timebass 76803 Trigger 681818 200 usidiv Stop 100fdiv 10 0MS 50G5 s Edge Positve E Xi 826 89 ced 2 815 VWAX 11 2 3 2512 7 8 2013 4 30 27 PM http onsemi com 7 NCV97310MW50GEVB The modulation depth and modulation frequency are each set by 2 external resistors to GND The modulation Modulation Depth vs RDEPTH frequency can be set from 5 kHz up to 50 kHz using a resistor 30 0 from the RMOD pin to GND The modulation depth can be set from 3 up to 30 of the nominal switching frequency using a resistor from the RDEPTH pin to GND Please see the curves below for typical values 25 0 20 0 4 15 0 4 10 0 5 0 4 2 a S a c S s 3 gt Modulation Frequency vs RMOD 0 0 T T 0 30 40 RDEPTH kOhm Spread spectrum is automatically turned off when there is a short to GND or an open circuit on either the RMOD pin or the RDEPTH pin Please be sure that the ROSC pin is an open circuit when using spread spectrum 30 RMOD kOhm TYPICAL PERFORMANCE Efficiency NCV97310 SW1 Efficiency 5 0 V VIN 8 0 V VIN 13 2 V VIN 18 0 V Figure 6 Efficiency for SW1 with a 5 0 V Output http onsemi com 8 NCV97310MW50GEVB NCV2. m lt ZNIA ams O ve 1 Wy Q an ro K 8 5 amp 39 i UB ies d Tp fe lh F e le Q ameg I 1H YNI an a 2159 OL 1V8A 283 T Jed HM a pease mle utd PNID ad pe 00 A08 2 62 TNIA ENTD zgd INIO OT ONIO io M 7 3 2 rus wa f rano az ZNIA de 7 F f eps soqo sveta NINH siog od SAWOPPEAUN Y NIA anog 480 Ha 001 gt 001 2 00 T erLnog PLNIINH A 076 T Hn O 5 NS 1 IMS O FYSA http 13 NCV97310MW50GEVB PCB LAYOUT NCV97310 Evaluation Board Rev 4 10 03 13 TOP Layer Figure 15 Top View NCV97310 Evaluation Board Rev 4 10 03 13 BOTTOM Layer mirrored x DO e O O O O Figure 16 Bottom View http onsemi com 14 NCV97310MW50GEVB BILL OF MATERIALS Table 4 BILL OF MATERIALS Substi Manufacturer s tution Part Number Allowed Reference Designator s 3 Description Tolerance C1 C2 CSNB2 CAP CER 5 CSNB3 100 pF 50 V 5 NP0 0603 Electronics GCM1885C1H101JA16D America C3 CBST1 CAP CER 603 Electronics GCM188R71H104KA57D CBST2 CBST3 0 1 uF 50 V
3. Peak Current Limit VOUT2 Peak Current Limit E MM PROTECTION 5 Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions unless otherwise noted Product performance may not be indicated by the Electrical Characteristics if operated under different conditions http onsemi com 4 NCV97310MW50GEVB SEISH gg1su SZISH O zNa gz1su icd ad ad ZNJ 3684u e EEEE 4 guu3 sut negda aeou GND LLAOA cud OL 20 E vH eano 3 adog er t1Sd e LLAOA ena de e le z e e e sd zz LLAOA ELNOA T a 81589 a s am m 8 8 1 4 dWoou arsy 51109 11103 m 8 1n0A Eno far Me Woo 7 O EMS oe ee HSH r musu gt 21405 gg did 17 Sik 9 SZHOSMINOLEZGAON Jea o anol QOL j NA y du mE a zzinog
4. izinog zaNsy zz N guis T Oams ZLNOA Hn Zz 21 Ot ANY ZMS ge naig Na Ona I 2 lt F id 3 8 m 8 lt t G Jn S28 S OU s 21589 bs 6 lem 9 ic en no 5 J i NID enig INI SNO an ifo E 2158 o LYSA m 3n vor qNAO nzasy ivgA 21001 00 ge 205 mS 6 INTA ENID zgd 3n TT PTS LVHA UO ZNIO INID ONID 19 iu NINH HS89 mes _ _ S 77177 Hane jn ZNIA 03 dh 2 PDT eoeta T NINH E 18 5 4 w LLAOA ZNIA ZNIA anon ra 001 gt oot gt 001 T erLnog zi1noo rno LNIWH 078 r TINON NS IMS Figure 4 NCV97310GEVB 5 0 V Board Schematic http NCV97310MW50GEVB Operational Guidelines 1 2 3 Connect a dc input voltage within the 6 0 V to 36 V range between VBAT and GND Connect a load lt 150 mA between VOUTI and GND Connect a dc enable voltage within the 2 0 V to 36 V range between EN and GND This will enable the internal LDO for low Iq mode You may use jumper J1 to connect EN dir
5. America CDRV1 10 X7R 0603 CCOMP1 CAP CER 330 pF 50 V 5 NP0 0603 CCOMP2 CAP CER 22 pF 50 V 5 NP0 0603 CDRV2 CAP CER 0 47 uF 16 V 10 X7R 0603 CINO CIN1 CAP CER CIN2 4 7 uF 50 V 10 X7R 1206 Electronics GCM1885C1H331JA16D America Electronics GCM1885C1H220JA16D America Electronics GCM188R71C474KA55D America 1206 TDK Corporation C3216X7R1H475K160AC CAP CER Murata Electronics GCM31MR71H105KA55L 1 0 uF 50 V North America 10 X7R 1206 CAP CER 2 2 uF 1206 Murata Electronics GCM31CR71H225KA55L 2 2 uF 50 V North America 10 X7R 1206 FK_V_E Chemi Con EMZAS500ADA101MHA0G CAP ALUM 100 uF 100 uF 50 V 20 SMD CAP CER 1 uF 1 0 uF 6 Murata Electronics GCM188R71C105KA64D 16 V 10 X7R North America 0603 CAP CER 4 7 uF TDK Corporation CGA4J3X7R1C475K125AB 4 7 uF 16 V 10 X7R 0805 COUT11 CAP CER 10 uF 1206 Murata Electronics GCM31CR71A106KA64L COUT12 10 uF 10 V 10 North America COUT13 X7R 1206 COUT21 COUT22 COUTS1 COUT32 03 05 RES 0 0 OHM 0Q Jumper 603 Vishay Dale CRCW06030000Z0EA 1 10 W 0603 SMD R3 R4 R5 R6 RES 10 0K 10 0 kQ 196 603 Vishay Dale CRCW060310KOFKEA RFB2U RFB3U OHM 1 10 W 1 0603 SMD R7 RES 0 0 OHM 0Q Jumper 1206 Vishay Dale CRCW12060000Z0EA 1 4 W 1206 SMD 1 RES 12 4K 12 4 kQ 03 OHM 1 10 W 1 0603 SMD RFB2L RES 20 0K 20 0 kQ 03 OHM 1 10 W 1 0603 SMD RMIN1 RMIN2 RES 100 OHM 100 Q 1206 Vishay Dale CRCW1206100RFKEA RMIN3 1 4 W 1 1206 SMD
6. RSNB2 RSNB3 RES 10 0 OHM 10 0 Q 603 Vishay Dale CRCWO60310ROFKEA 1 10 W 1 0603 SMD D1 DIODE 40 V 4 0 A SMB DIODE ON Semiconductor NRVB440MFST1G SCHOTTKY 4 0 A 40 V SMB http onsemi com 15 Vishay Dale CRCW060312K4FKEA Vishay Dale 60320 NCV97310MW50GEVB Table 4 BILL OF MATERIALS continued Reference Designator s EN EN2 ENS ERRB GNDL PGND1 1 PGND1 2 PGND2 1 PGNDS 1 RST1B RST2B RST3B STBYB SW1 SW2 SWS VIN2 VBAT VOUTI 1 VOUT2 1 GNDO GND1 GND2 GND3 VBAT VOUT1 VOUT2 VOUT3 Description High Current Shielded nductor 1 0 uH 8 7 A SAT High Current Shielded nductor 4 7 uH 4 5 A SAT High Current Shielded nductor 2 2 uH 5 6 A SAT PIN INBOARD 042 HOLE 1000 PKG CONN JACK BANANA UNINS PANEL MOU Manufacturer s Part Number XAL4020 102M XAL4030 472M XAL4020 222M Vector Electronics K24C M Substi tution Allowed Emerson Network 108 0740 001 Power Connectivity Johnson Molex Connector 22 28 4023 Corporation CONN HEADER 2POS 100 VERT GOLD TP CONN JMP Sullins Connector 55 025 JUMPER Solutions SHORTING 603 COMP1 DRV1 FB2 FB3 RMIN TP1 TP2 TP3 VIND CIRCUIT PIN Do Not SMALLTP Mill Max 3128 2 00 15 00 00 08 0 PRNTD 020 D Populate Manufacturing Corp Automotive QFN32 ON Semiconductor Battery Connec ted Low IQ Multi Output
7. set the output voltage Use the following equation R R _ LOWER UPPER Vour Some common setups are listed below Desired RupPER RLOWER Output V VREF V kQ 1 kQ 1 1 2 1 2 10 0 NP Spread Spectrum In SMPS devices efficiency Unfortunately the switching leads to a much noisier EMI profile We can greatly decrease some of the radiated emissions with some spread spectrum techniques Spread spectrum is used to reduce the peak electromagnetic emissions of a switching regulator switching translates to higher Time Domain Frequency Domain Unmodulated f 3f 5 7 9f The spread spectrum used in the NCV97310 is an up spread technique meaning the switching frequency is spread upward from the 2 0 MHz base frequency For example a 5 spread means that the switching frequency is swept spread from 2 0 MHz up to 2 1 MHz in a linear fashion this is called the modulation depth The rate at which this spread takes place is called the modulation frequency For example a 10 kHz modulation frequency means that the frequency is swept from 2 0 MHz to 2 1 MHz in 50 us and then back down from 2 1 MHz to 2 0 MHz in 50 us eee eee eee EL LAE LA 14 lY p Pos LA Li LAE Ll k L J i 4 MN J 1 1 1 Measure P1freq C1 P4 duly C1 value 2 306613 MHz P2 duty C1 P3 width C1 mean 221447795 MHz E V
8. 97310 SW2 Efficiency 3 3 V gt o 2 VIN 5 0V VIN 80V 1 1 5 Output Current A Figure 7 Efficiency for SW2 with a 3 3 V Output NCV97310 SW3 Efficiency 1 2 V gt 2 Lu 1 1 5 Output Current A Figure 8 Efficiency for SW3 with a 1 2 V Output http onsemi com 9 NCV97310MW50GEVB Line Regulation NCV97310 SW1 3 3 V Line Regulation IOUT 100 mA IOUT 500 mA IOUT 2 1 0A IOUT 2 0 IOUT 3 0 Line Regulation Input Voltage V Figure 9 Line Regulation for SW1 with a 3 3 V Output NCV97310 SW2 3 3 V Line Regulation IOUT 100 mA gt IOUT 500 mA gt IOUT 1 0A IOUT 2 0A 2 5 3 o tc Input Voltage V Figure 10 Line Regulation for SW2 with a 3 3 V Output http onsemi com 10 Line Regulation NCV97310MW50GEVB NCV97310 SW3 1 2 V Line Regulation IOUT 100 mA IOUT 500 mA IOUT 1 0 IOUT 2 0 Input Voltage V Figure 11 Line Regulation for SW3 with a 1 2 V Output Load Regulation c o s 3 o tc g a NCV97310 SW1 Load Regulation 5 0 V 0 40 0 30 17 i E 0 00 gt s 0 1096 VN 13 2V EO 0 20 a 0 3096 0 4096 0 1 5 2 Output Current A Figure 12 Load Regulation for SW1 with a 5 0 V Output http onsemi com 11 NCV97310MW50GEVB NCV97310 SW2 Load Regulation 3 3 V Load Regu
9. NCV97310MW50GEVB NCV97310 Evaluation Board User s Manual Description The NCV97310 is 3 output regulator consisting of a low Iq battery connected 3 A 2 MHz non synchronous switcher and two low voltage 1 5 2 MHz synchronous switchers all using integrated power transistors The high voltage switcher is capable of converting a 4 1 V to 18 V battery input to a 5 V or 3 3 V output at a constant 2 MHz switching frequency delivering up to 3 A In overvoltage conditions up to 36 V the switching frequency folds back to 1 MHz in load dump conditions up to 45 V the regulator shuts down The output of the battery connected buck regulator serves as the low voltage input for the 2 synchronous switchers Each downstream output is adjustable from 1 2 V to 3 3 V with a 1 5 A current limit and a constant 2 MHz switching frequency Each switcher has independent enable and reset pins giving extra power management flexibility For low Iq operating mode the low voltage switchers disabled and the standby rail is supplied by a low Iq LDO up to 150 mA with a typical Iq of 30 uA The LDO regulator is in parallel to the high voltage switcher and is activated when the switcher is forced in standby mode All 3 SMPS outputs use peak current mode control with internal slope compensation internally set soft start battery undervoltage lockout battery overvoltage protection cycle by cycle current limiting hiccup mode short circuit protection
10. PMU NOTE All devices are RoHS Compliant RDEPTH Do Not RFB3L RMOD Populate NCV97310MW50R2G ON Semiconductor and the are registered trademarks of Semiconductor Components Industries LLC SCILLC or its subsidiaries in the United States and or other countries SCILLC owns the rights to a number of patents trademarks copyrights trade secrets and other intellectual property A listing of SCILLC s product patent coverage may be accessed at www onsemi com site pdf Patent Marking pdf SCILLC reserves the right to make changes without further notice to any products herein SCILLC makes no warranty representation or guarantee regarding the suitability of its products for any particular purpose nor does SCILLC assume any liability arising out of the application or use of any product or circuit and specifically disclaims any and all liability including without limitation special consequential or incidental damages Typical parameters which may be provided in SCILLC data sheets and or specifications can and do vary in different applications and actual performance may vary over time All operating parameters including Typicals must be validated for each customer application by customer s technical experts SCILLC does not convey any license under its patent rights nor the rights of others SCILLC products are not designed intended or authorized for use as components in systems intended for surgical implant into the body or other applicatio
11. and thermal shutdown An error flag is available for diagnostics Ne gt tme O s ON Semiconductor http onsemi com EVAL BOARD USER S MANUAL Key Features Low Quiescent Current in Standby Mode 2 Microcontroller Enabled Low Voltage Synchronous Buck Converters Large Conversion Ratio of 18 V to 3 3 V Battery Connected Switcher Wide Input of 4 1 to 45 V with Undervoltage Lockout UVLO Fixed Frequency Operation Adjustable from 2 0 to 2 6 MHz Internal 1 5 ms Soft starts Cycle by cycle Current Limit Protections Individual Reset Pins with Adjustable Delays These Devices are Pb Free Halogen Free BFR Free and are RoHS Compliant e e Hiccup Overcurrent Protections OCP e e Typical Applications Infotainment Body Electronics Telematics ECU Figure 1 Evaluation Board Photo Semiconductor Components Industries LLC 2014 October 2014 Rev 1 Publication Order Number EVBUM2218 D NCV97310MW50GEVB Q REGULATOR 1 O 1 5Vor 3V3 STEP DOWN Q LOGIC O LINEAR REGULATOR Master Enable NAM M REGULATOR 3 1V2 3V3 STEP DOWN Figure 2 NCV97310 Block Diagram http onsemi com 2 NCV97310MW50GEVB TYPICAL APPLICATION Cour Vouri Vout2 Cine Vours Q 2 RSTB2 1 RSTB3 ENS Figure 3 Typical Application Table 1 EVALUATION BOARD TERMINALS Positive dc input vol
12. ectly to VBAT a The VOUTI signal should be 5 0 V b The VOUT2 signal should be disabled regardless of EN2 state and read 0 V The VOUTS signal should be disabled regardless of ENG state and read 0 V Connect a dc enable voltage within the 2 0 V to 36 V range between STBYB and GND This will exit low Iq mode and power up switcher 1 You may use jumper J2 to connect STBYB directly to VBAT The VOUT signal should still be 5 0 V You may now add a higher load to VOUTI VBAT ZOUT3 5 Connect a dc enable voltage within the 2 0 V to 6 V range between EN2 and GND This will power up switcher 2 You may use jumper J4 to connect EN2 directly to VOUTI The VOUT2 signal should be 3 3 V 6 Connect a dc enable voltage within the 2 0 V to 6 V range between EN3 and GND This will power up switcher 3 You may use jumper J3 to connect EN3 directly to VOUTI The VOUT3 signal should be 1 2 V TLNOZ Figure 5 NCV97310 Board Connections http onsemi com NCV97310MW50GEVB APPLICATION INFORMATION Output Voltage Selection The voltage outputs for switcher 2 and switcher 3 are adjustable and can be set with a resistor divider The FB reference for both switchers is 1 2 V VOUT 2 VOUT 3 R UPPER FBx 1 2 V R LOWER The upper resistor is set to 10 KQ and is part of the feedback loop To maintain stability over all conditions it is recommended to change the only the lower feedback resistor to
13. lation 1 1 5 Output Current A Figure 13 Load Regulation for SW2 with a 3 3 V Output NCV97310 SW3 Load Regulation 1 2 V 2 S 23 o rc 34 1 1 5 Output Current A Figure 14 Load Regulation for SW3 with a 1 2 V Output http onsemi com 12 NCV97310MW50GEVB SCHEMATIC zi 85155 SZISH 2 Z N3 T BASH 4090 84 P ana ZO 3t X d LLAOA D 29 xoi apua mut 4 eousreyex 103 gui mes uns ES LLAOA ead OL E Er 2 E i hi TON 87 RA Ex Tes aia E an p ELN A 1589 ano dno 39001 oo 228250238 2 592298 81159 51109 ernog m 8NSH LL SON E SN TuE ems Gr 178 I ems F ES eu d p m aural gg zron lt 1 ai mag DEHOSMINOFEZEAON pu noi ano 001 iz 2 la aa were wd 28NSY g A813 Os 4 mee gm ZMS N3 N3 52 z N3
14. lease contact your local Sales Representative EVBUM2218 D
15. ns intended to support or sustain life or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application Buyer shall indemnify and hold SCILLC and its officers employees subsidiaries affiliates and distributors harmless against all claims costs damages and expenses and reasonable attorney fees arising out of directly or indirectly any claim of personal injury or death associated with such unintended or unauthorized use even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part SCILLC is an Equal Opportunity Affirmative Action Employer This literature is subject to all applicable copyright laws and is not for resale in any manner PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT Literature Distribution Center for ON Semiconductor P O Box 5163 Denver Colorado 80217 USA Phone 303 675 2175 or 800 344 3860 Toll Free USA Canada Fax 303 675 2176 or 800 344 3867 Toll Free USA Canada Email orderlit onsemi com American Technical Support 800 282 9855 Toll Free Semiconductor Website www onsemi com USA Canada Europe Middle East and Africa Technical Support Phone 421 33 790 2910 Japan Customer Focus Center Phone 81 3 5817 1050 Order Literature http www onsemi com orderlit For additional information p
16. tage Master enable input Includes jumper J3 to connect to VBAT Standby enable input Includes jumper J4 to connect to VBAT Switcher 2 enable input Includes jumper J6 to connect to VOUT1 ENS Switcher 3 enable input Includes jumper J5 to connect to VOUT1 Reset with adjustable delay Goes low when the VOUTS is out of regulation http onsemi com 3 NCV97310MW50GEVB Table 2 ABSOLUTE MAXIMUM RATINGS Voltages are with respect to GND wk Dc Supply Voltage VBAT EN STBYB 0 3 to 36 V Dc Supply Voltage VIN2 VIN3 0 3 to 12 Dc Supply Voltage RSTB1 RSTB2 0 3 to 6 RSTB3 ERRB EN2 EN3 Storage Temperature Range 55 to 150 Stresses exceeding those listed the Maximum Ratings table may damage the device If any of these limits are exceeded device functionality should not be assumed damage may occur and reliability may be affected Table 3 ELECTRICAL CHARACTERSITICS T 25 4 5 lt VIN lt 18 V IOUT lt 2 A unless otherwise specified REGULATION Output Voltage VOUT2 3 3 Output Voltage VOUT3 1 2 Line Regulation VOUT1 louT1 1 0 must ao Toad Regiaten vou x toad Region wmv SWITCHING Sweeney ECCL NENNEN FP CURRENT LIMIT Peak Current Limit VOUT1 STBYB 0V 0 2 Peak Current Limit VOUT1 5V 4 4 Peak Current Limit
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