NCV97310 Evaluation Board User`s Manual
Contents
1. rzinog zing ayo ZINO 1 27 ene ez ao Suro SETA zms 2 5 Pa v an an 2 _ an 5 9 LVaA 21580 k e lel eel en 9 aeg anz nool anz of ne a an OL 2159 LVEA T O ah vot ONNO tao _ LWaA PNID TA d 00 205 62 INTA ENID zgd aang T pTS WHA UO ZNID INIO OT ONIO 19 i _ meg OE siog 7109 2NIA ZNIA ano ano ta 109 Z 11709 TINON AAA LLAOA onsemi hitp 13 NCV97310MW33GEVB 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 a x o DO O O O O OO Figure 16 Bottom View http onsemi com 14 NCV97310MW33GEVB BILL OF MATERIALS Table 4 BILL OF MATERIALS Substi Manufacturer s tution Tolerance Part Number Allowed Reference Designator s Description C1 C2 CSNB2 CAP CER CSNB3 100 pF 50 V 5 NPO 0603 5 Mur2. 1 kQ 1 1 2 1 2 10 0 NP 1 5 1 2 10 0 40 0 1 8 1 2 10 0 20 0 2 5 1 2 10 0 9 31 3 3 1 2 10 0 5 76 Spread Spectrum In SMPS devices switching translates to higher 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 Time Domain Frequency Domain Unmodulated 5fe 7 ELENA 5 7 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 1 JA P2 duty C1 P3 width C1 er fh 2h Faw Spread P duty C1 Measure Pt treq C1 value 2 306613 MHz PS duty C3 5 mean 2 21447795 MHz min 2 089298 MHz max 2 343767 MHz sdev 71 94383 kHz num 13 271 3 status a Timebase 768 u Trigger 3019 50 0e 3 div Stop 5 7
3. use as components in systems intended for surgical implant into the body or other applications 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
4. 0 V VIN 8 0 V 1 1 5 Output Current A Figure 7 Efficiency for SW2 with a 1 8 V Output NCV97310 SW3 Efficiency 1 2 V gt 2 1 1 5 Output Current A Figure 8 Efficiency for SW3 with a 1 2 V Output hitp onsemi com 9 NCV97310MW33GEVB Line Regulation NCV97310 SW1 3 3 V Line Regulation 2 5 5 IOUT 100 mA IOUT 500 mA IOUT 1 0A IOUT 2 0A IOUT 3 0A 15 25 Input Voltage V Figure 9 Line Regulation for SW1 with a 3 3 V Output NCV97310 SW2 1 8 V Line Regulation 2 5 5 a oc IOUT 100 mA IOUT 500 mA IOUT 1 0 IOUT 2 0 6 Input Voltage V Figure 10 Line Regulation for SW2 with a 1 8 V Output hitp onsemi com 10 NCV97310MW33GEVB NCV97310 SW3 1 2 V Line Regulation Line Regulation IOUT 100 mA IOUT 500 mA IOUT 1 0A IOUT 2 0A 4 4 5 Input Voltage V Figure 11 Line Regulation for SW3 with a 1 2 V Output Load Regulation NCV97310 SW1 Load Regulation 3 3 V VIN 80V VIN 13 2V VIN 18 0V 2 5 5 D oc 1 5 2 Output Current Figure 12 Load Regulation for SW1 with a 3 3 V Output hit
5. 28 4023 SSCO2SYAN 3128 2 00 15 00 00 08 0 SMALLTP TP2 TP3 VIND RDEPTH RFB3L RMOD ROSC Populate ON Semiconductor NCV97310MW33R2G Automotive Battery Connec ted Low IQ Multi Output PMU NOTE All devices are ROHS Compliant ON Semiconductor and are registered trademarks of Semiconductor Components Industries LLC SCILLC 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
6. 3 5817 1050 Order Literature http www onsemi com orderlit For additional information please contact your local Sales Representative EVBUM2223 D
7. N Semiconductor NRVB440MFST1G No SCHOTTKY 4 0 A 40 V SMB RES 0 0 Q 1 10 W 0603 SMD R4 R5 R6 RES 10 0 RFB2U RFB3U 1 10 W 1 0603 SMD RES 0 0 Q 1 4 W 1206 SMD RCOMP1 1 RES 12 4 kQ 1 10 W 1 0603 SMD 5 http onsemi com 15 NCV97310MW33GEVB Table 4 BILL OF MATERIALS continued Qty Description Reference Designator s High Curren Shielded Inductor 1 0 uH 8 7 A SAT Tolerance XAL4020 102M Coilcraf Substi tution Allowed Manufacturer s Part Number XAL4020 102M High Curren Shielded Inductor 4 7 wH 4 5 A SAT igh Curren Shielded Inductor 2 2 uH 5 6 A SAT XAL4030 472M Coilcraf XAL4020 222M Coilcraf XAL4030 472M XAL4020 222M EN EN2 ENS ERRB GNDL PGND1_1 PGND1_2 PGND2_1 PGND3_1 RST1B RST2B RST3B STBYB SW1 SW2 SW3 VIN2 VBAT VOUT1_1 VOUT2_1 VOUT3_1 PIN INBOARD 042 HOLE 1000 PKG Vector Electronics K24C M GNDO GND1 GND2 GND3 VBAT VOUT1 VOUT2 VOUT3 J1 J2 J3 4 COMP1 DRV1 FB2 FB3 RMIN TP1 CONN JACK BANANA UNINS PANEL MOU CONN HEADER 2POS 100 VERT GOLD CONN JUMPER SHORTING GOLD CIRCUIT PIN PRNTD 020 D 425 L Do Not Populate Emerson Network Power Connectivity Johnson BANANA Molex Connector Corporation Sullins Connector Solutions Mill Max Manufacturing Corp 108 0740 001 22
8. NCV97310MW33GEVB NCV97310 Evaluation Board User s Manual Description The NCV97310 is 3 output regulator consisting of low Iq battery connected 3 2 MHz non synchronous switcher and two low voltage 1 5 A 2 MHz synchronous switchers all using integrated power transistors The high voltage switcher is capable of converting 4 1 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 In overvoltage conditions up to 36V 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 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 are 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
9. V 100 9 10 0MS 5 0GS sJEdge 3 826 A 89 2 915 11 2e 3 ay LeCroy 7 9 2013 4 30 27 http onsemi com 7 NCV97310MW33GEVB The modulation depth and modulation frequency are each set by 2 external resistors to GND The modulation frequency can be set from 5 kHz up to 50 kHz using aresistor 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 Modulation Depth vs RDEPTH N Ss 2 5 5 5 Modulation Frequency vs RMOD 30 40 RDEPTH kQ 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 N gt 5 2 Ss 5 me 20 30 RMOD kQ TYPICAL PERFORMANCE Efficiency NCV97310 SW1 Efficiency 3 3 V Efficiency VIN 8 0 V VIN 13 2V VIN 18 0 V 1 5 2 Output Current A Figure 6 Efficiency for SW1 with a 3 3 V Output hitp onsemi com 8 NCV97310MW33GEVB NCV97310 SW2 Efficiency 1 8 Efficiency VIN 3 3 VIN 5
10. WaA ZNIA Fea w lt gt T lt Q ne 23852328 LEA cee eee 6 21589 k 9 3124 an ancy ane nook NiO an l l He 2159 to 9 ah rof O ta tHo PNIO e0eTa ad 00 T E2 62 utd INIA ENID 283 OPTS LWHA UO ZNIO 11889 _ pcs dn ZNIA SN H SE A siog 109 ZNIA ENN anog anon wa ernog mee si Lb TS 1 E LLNOA IMS Figure 4 NCV97310GEVB 3 3 V Board Schematic onsemi http NCV97310MW33GEVB Operational Guidelines 1 Connect a input voltage within the 6 0 to 2 36 range between VBAT and GND Connect a load lt 150 mA between VOUT and GND Connect a 4 enable voltage within the 2 0 V to 36 V range between EN and GND This will 6 enable the internal LDO for low Iq mode You may use jumper J1 to connect EN directly to VBAT The VOUTI signal should be 3 3 V b The VOUT2 signal should be disabled regardless of EN2 state and read 0 V The VOUT3 signal should be disabled regardless of EN3 s
11. able delay Goes low when the VOUT1 is out of regulation Reset with adjustable delay Goes low when the VOUT2 is out of regulation Reset with adjustable delay Goes low when the VOUTS is out of regulation http onsemi com 3 Error flag combining temperature and input and output voltage sensing NCV97310MW33GEVB Table 2 ABSOLUTE MAXIMUM RATINGS Voltages are with respect to GND Rating Value Dc Supply Voltage VBAT EN STBYB 0 3 to 36 Dc Supply Voltage RSTB1 RSTB2 0 3 to 6 RSTB3 ERRB EN2 EN3 Storage Temperature Range 55 to 150 Stresses exceeding those listed in 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 TA 25 C 4 5 lt VIN lt 18 V IOUT lt 2 A unless otherwise specified REGULATION SWITCHING Switching Frequency Po 2 0 MHz Rosc Frequency Range 50 kQ gt gt 10 kQ 2 0 to 2 6 MHz CURRENT LIMIT Peak Current Limit VOUT1 0 Peak Current Limit VOUT1 STBYB 5V Peak Current Limit VOUT2 Peak Current Limit VOUT3 PROTECTION Input Undervoltage Lockout UVLO Vpat Decreasing 3 9 36 Thermal Shutdown Ty Rising 170 Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions unless otherwise noted Prod
12. and thermal shutdown An error flag is available for diagnostics ON Semiconductor hitp 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 Battery Connected Switcher e Wide Input of 4 1 to 45 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 e Hiccup Overcurrent Protections OCP e e Typical Applications e Infotainment Body Electronics Telematics ECU www onsemi com GND wy cours Wy course NCV97310 Demo Board Rev 4 Figure 1 Evaluation Board Photo Semiconductor Components Industries LLC 2014 January 2014 Rev 0 Publication Order Number EVBUM2223 D NCV97310MW33GEVB REGULATOR 1 3V3 STEP DOWN LINEAR REGULATOR be Se REGULATOR 3 1V2 3V3 STEP DOWN Figure 2 NCV97310 Block Diagram http onsemi com 2 NCV97310MW33GEVB TYPICAL APPLICATION Cout Vout1 Vout2 Cine Vouts EN2 RSTB2 1 ENS Figure 3 Typical Application Table 1 EVALUATION BOARD TERMINALS Ri Reset with adjust
13. ata Electronics GCM1885C01H101JA16D North America C3 CBST1 CAP CER CBST2 CBST3 0 1 uF 50 V CDRV1 10 X7R 0603 CCOMP1 1 CAP CER 330 pF 50 V 5 NPO 0603 CCOMP2 1 CAP CER 22 pF 50 V 5 NPO 0603 CDRV2 CAP CER 0 47 uF 16 V 10 X7R 0603 Murata Electronics GCM188R71H104KA57D North America Murata Electronics GCM1885C01H331JA16D North America Murata Electronics GCM1885C1H220JA16D North America Murata Electronics GCM188R71C0474KA55D North America CINO 3 CAP CER TDK Corporation C3216X7R1H475K160AC CIN2 4 7 uF 50 V 10 X7R 1206 CAP CER 1 0 uF 50 V 10 X7R 1206 Murata Electronics GCM31MR71H105KA55L North America CAP CER 2 2 uF 50 V 10 X7R 1206 Murata Electronics GCM31CR71H225KA55L North America CAP ALUM 100 uF 50 V 20 SMD Chemi Con EMZASO0ADA101MHAOG CAP CER 1 uF 16 V 10 X7R 0603 Murata Electronics GCM188R71C105KA64D North America CAP CER 4 7 uF 16 V 10 7 0805 TDK Corporation CGA4J3X7R1C475K125AB COUT11 CAP CER COUT12 10 uF 10 V 10 COUT13 X7R 1206 COUT21 COUT22 COUT31 COUT32 Murata Electronics GCM31CR71A106KA64L North America Vishay Dale CRCW06030000Z0EA Vishay Dale CRCW060310KOFKEA Vishay Dale CRCW12060000Z0EA Vishay Dale CRCW060312K4FKEA RFB2L 1 RES 5 76 kQ Vishay Dale CRCW06035K76FKEA 1 10 1 0603 SMD RSNB2 RSNB3 2 RES 10 0 Q Vishay Dale CRCW060310ROFKEA 1 10 1 0603 SMD D1 1 DIODE 40 4 0 SMB_DIODE O
14. p onsemi com 11 NCV97310MW33GEVB NCV97310 SW2 Load Regulation 1 8 V VIN 3 3V VIN 5 0V VIN 8 0V Load Regulation 1 1 5 Output Current A Figure 13 Load Regulation for SW2 with a 1 8 V Output NCV97310 SW3 Load Regulation 1 2 V 5 53 a 2 1 1 5 Output Current Figure 14 Load Regulation for SW3 with a 1 2 V Output hitp onsemi com 12 NCV97310MW33GEVB SCHEMATIC 95155 laeLsy 92159 zNa lazisy ae OL 39001 a 2 yo 4 oe quia eN Q eae T LLAOA A a ENJ t a5 te 85 D a gt 27 an vo ELNOA T G1S80 0701 os z eang al N 15 1 1 09 ELNOA 0 _ AN EMS ar es TR m ems Hems zinon OZHEEMINOLELEAON moy oor myo wen
15. tate and read 0 V Connect a de 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 VOUTI signal should still be 3 3 V You may now add a higher load to VOUTI VBAT 5 Connect dc enable voltage within the 2 0 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 1 8 V Connect de 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 VOUT The VOUTS signal should be 1 2 21002 Figure 5 NCV97310 Board Connections hitp onsemi com 6 NCV97310MW33GEVB 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 RUPPER FBx 1 2 V RLOWER 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 set the output voltage Use the following equation Riower Ruprer Vre Vout VFB Some common setups are listed below Desired RUPPER RLOWER Output V VREF V
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