EVBUM2225 - NCV887720 Automotive Grade High
Contents
1. 0 V 2 5 A Evaluation Board Schematic onsemi com http NCV887720BSTGEVB BILL OF MATERIALS Table 4 BILL OF MATERIALS Substi Toler Manufacturer s Part tution Description Value ance Manufacturer Number Allowed CAP CER 330PF 50V 330 pF 5 Murata Electronics GCM1885C1H331JA16D Yes 5 NPO 0603 North America 1 CAP CER 0 012UF 50V 0 012 uF 10 Murata Electronics GRM188R71H123KA01D Yes 10 X7R 0603 North America 1 CAP CER 1UF 16V 10 1uF 10 Murata Electronics GCM188R71C105KA64D Yes X7R 0603 North America 2 CAP CER 1UF 50V 10 1 0 uF 10 TDK Corporation CGA4J3X7R1H105K125AB Yes X7R 0805 CAP CER 150PF 50V 150 pF 5 Murata Electronics GCM1885C1H151JA16D Yes 5 NPO 0603 North America 2 CAP CER 0 1UF 50V 100 nF 10 Murata Electronics GCM21BR71H104KA37L Yes 10 X7R 0805 North America CI2 1 CAP ALUM 220UF 50V 220 uF 20 Chemi Con EMZA500ADA221 MJA0G Yes 20 SMD CI3 1 CAP ALUM 470UF 50V 470 uF 20 Panasonic Electronic EEU FC1H471 Yes 20 RADIAL Components CO2 CO4 2 CAP ALUM 100UF 35V 100 uF 20 Nichicon RHS1V101MCN1GS No 20 SMD CAP CER 4 7UF 50V 4 7 uF 10 Murata Electronics GCM32ER71H475KA55L Yes 10 X7R 1210 North America 1 CAP CER 3300PF 50V 3300 pF 5 TDK Corporation CGA3E2C0G1H332J080AA Yes 5 NPO 0603 40 V 4 0 A Schottky 40 V N A ON Semiconductor NRVB440MFST1G Rectifier SO8 FL 4A INDUCTOR POWER 2 7 uH 20 Coilcraft Inc XAL7030 272ME 2 7UH 12 8A SMD 1 N Channel Power 60 V N A ON Semiconductor NVMFS5844NL MOSFET 60V 61A 62. 1A SO 8FL 1 RES 5 62K OHM 1 10W 5 62 KQ 1 Vishay Dale CRCW06035K62FKEA Yes 1 0603 SMD 1 RES 10 7K OHM 1 10W 10 7 KQ 1 Vishay Dale CRCW060310K7FKEA Yes 1 0603 SMD 1 RES 0 0 OHM 1 10W Jumper Vishay Dale CRCW06030000Z0EA Yes JUMP 0603 SMD 1 RES 249 OHM 1 10W 249 Q 1 Vishay Dale CRCW0603249RFKEA Yes 1 0603 SMD Gg E hoj E E mno 2 RES 0 036 OHM 1W 5 0 036 Q 5 Panasonic Electronic ERJ 8BWJR036V 1206 SMD Components 1 RES 0 68 OHM 1 10W 0 68 Q 1 Panasonic Electronic ERJ 3ROFR68V Yes 1 0603 SMD Components 1 RES 6 80 OHM 1 10W 6 8 Q 1 Vishay Dale CRCW06036R80FKEA Yes 1 0603 SMD 1 Automotive Non Sync N A N A ON Semiconductor NCV887720 N Boost Controller Reference Designator s o a TU O Q N Q I o a Cli CO6 CO3 el COS CSNB z o o 1 1 nr a O o a PN R7 R8 RDAMP RSNB Cc E All Materials are ROHS Compliant hitp onsemi com 6 NCV887720BSTGEVB PCB LAYOUT NCV887720 Demo Board Rev 1 TOP Layer 01 13 204 NCV887720 Demo Board REV 1 01 13 14 s Figure 5 Top View NCV887720 Demo Boord Rev i BOTTOM Layer 01 13 2014 Figure 6 Bottom View http onsemi com 7 NCV887720BSTGEVB ON Semiconductor and Q 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 cove
3. 720BSTGEVB Table 1 EVALUATION BOARD TERMINALS VIN large post Positive DC input voltage power GND large post Common DC return power VOUT large post Regulated DC output voltage power GND small post Common DC return monitoring point VC small post Voltage compensation monitoring point SW a os Table 2 ABSOLUTE MAXIMUM RATINGS Voltages are with respect to GND el om Junction Temperature Ambient temperature Evaluation Board 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 CHARACTERISTICS TA 25 C 3 75 V lt Vin lt Vout_LED VpisB 5 V unless otherwise specified Characteristics Conditions Typical Value Unit Switching User Selectable Frequency Range ROSC refer to datasheet 170 500 Current Limit Protections VOUT Undervoltage Lockout UVLO VOUT falling Thermal Shutdown TA increasing 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 2 NCV887720BSTGEVB Operational Guidelines The evaluation board is rated to operate under full load for input voltage as low as 3 75 V at the in
4. NCV887720BSTGEVB NCV887720 Automotive Grade High Frequency Start Stop Boost Controller Evaluation Board User s Manual Description This NCV887720 evaluation board provides a convenient way to evaluate a high freguency boost controller designed to supply a minimum output voltage during Start Stop vehicle battery voltage sags The unit is in low Ig sleep mode under normal battery operating condition and wakes up when the monitored voltage drops below 10 65 V and begin regulating once 10 0 V is reached Switching frequency is set to 440 kHz with a user selectable ROSC resistor The evaluation board is rated 10 0 V 2 5 A at a 3 75 V input voltage Operation below 3 75 V is possible if output current is reduced NCY887729 Demo Board REV 1 we Ta VG Nie ON Semiconductor http onsemi com EVAL BOARD USER S MANUAL Key Features e Automatic Enable below 10 65 V e Disable Override Function e Boost Operation at 10 0 V e 440 kHz Switching Frequency e Input Undervoltage Lockout e Wide Input Voltage of 3 75 V to 45 V e Low Quiescent Current in Sleep Mode lt 12 uA Typical Cycle by Cycle Current Limit Protection Automotive Grade 01 13 14 P51138 e e A T a a e 5 gt O vuv onsemi com Dit Figure 1 NCV887720 Start Stop Evaluation Board Semiconductor Components Industries LLC 2014 February 2014 Rev 1 Publication Order Number EVBUM2225 D NCV887
5. oad resistor is used it is recommended to start from a DC1 input voltage of 13 14 V to avoid overstressing the PCB boost diode D1 rated 4 A 3 Monitor VOUT Disconnect supply DC1 VOUT should have a response similar to that of Figure 3 NCV887720 2 5A 10V 25A 7 A Constant Evaluation Board V 7 Current Load Figure 2 Evaluation Board Connections http onsemi com 3 NCV887720BSTGEVB Typical Performance DCI is disabled then re enabled rmal 1 dge Nec Figure 3 NCV887701 Evaluation Board Waveforms DC2 at VIN adjusted to 3 75 V after reverse polarity protection diode VOUT 10 0 V Ioyr 2 5 A http onsemi com 4 NCV887720BSTGEVB SCHEMATIC 2u00 ZL TPUTNI INOA 92 909 eso deo sorta LNOA ISTIPIPA ut SIOJSTSDI MI S 90ZI SWUO 9 0 0 OML ONG B B ONG My ASE ASE AS nool gog r ML ana gt a ko 09 09 ZOD ino TOR O 1NOA TBUTUIS NIA Zeite KTADBITP STOJTOBdvO sovrtg 890 Ate gt INOA GINOA ono GND doze dnozz geld eld zio ZA O je MIA SS Be 19 doce Ka 19 0Z4488A9N dNO lt 9 00 9 00 4dost gu gu La 59 asa T 8 JSON duzi 6z obi 29 s SNS Z I on S _ 4dooee Pd LATY D JA pm i z ENO 9 JINOA AOS ONO dno vo O 0 eu Se EGA 89 DA F AAGA ANSA OA in dnt E 20001 SJNOVVAAUN vo NJA O HO s m ZELI baba JZLZ OL0 IVX E E MS i NIA L NA ma O HZZ OH O ta MS NIA Figure 4 NCV887720 Boost 10
6. penses 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 Egual 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 N American Technical Support 800 282 9855 Toll Free ON Semiconductor Website www onsemi com Literature Distribution Center for ON Semiconductor USA Canada P O Box 5163 Denver Colorado 80217 USA Europe Middle East and Africa Technical Support Order Literature http www onsemi com orderlit Phone 303 675 2175 or 800 344 3860 Toll Free USA Canada Phone 421 33 790 2910 EAR E Fax 303 675 2176 or 800 344 3867 Toll Free USA Canada Japan Customer Focus Center For additional information please contact your local Email orderlit onsemi com Phone 81 3 5817 1050 Sales Representative EVBUM2225 D
7. put terminal under full power less if output current is reduced Start Stop applications use reverse battery protection diodes in front of the boost converter Figure 2 so the input source can operate down to 3 75 V plus a diode drop i e 4 25 V Notes 1 The IC UVLO undervoltage lockout is 4 25 V for VOUT rising 3 8 V for VOUT falling 0 45 V hysteresis 2 Limit time spent with the power supply operating at minimum input voltage eguivalent to VIN 3 75 V to avoid overheating the power semiconductors First Time Power Up 1 Connect a DC source voltage 15 A capable set to a voltage of 13 14 V as shown in Figure 1 2 Connect the DISB TTL control signal as shown in Figure 1 The initial DISB state should be set to logic 0 DISB Command Reverse Polarity __ Inn Protection Diode Harness PS2 30 W capable 15 A capable 3 Connect a 2 5 A constant current load on the output 4 Decrease the DC input voltage until the PCB VIN voltage is 5 5 V 0 5 V 5 Set the DISB control signal to a TTL high state i e 5 V 6 Verify that the unit is regulating at VOUT 10 0 V 7 Reduce the DC input voltage until the PCB VIN 3 75 V Verify that the unit is regulating at VOUT 10 0 V Start Stop Voltage Transient Test 1 Connect both DC1 and DC2 input power supplies as illustrated in Figure 2 Adjust DC2 so that PCB VIN 3 75 V for a 2 5 A load 2 Connect a 2 5 A load on the output If a l
8. rage 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 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 ex
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