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BD90640EFJ-TR Datasheet(PDF) 3 Page - Rohm |
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BD90640EFJ-TR Datasheet(HTML) 3 Page - Rohm |
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3 / 44 page  3/40 BD906xx-C series TSZ02201-0T1T0AL00130-1-2 © 2014 ROHM Co., Ltd. All rights reserved. www.rohm.com TSZ22111・15・001 15.Sep.2015 Rev.005 Pin Configuration HRP7 HTSOP-J8 Pin Description Pin No. Symbol Function Pin No Symbol Function 1 VC Error Amp Output 1 RT Switching Frequency Setting Resistor Connection 2 VIN Power Supply Input 2 SW Switching Output 3 FB Output Voltage Feedback 3 EN / SYNC Enable / External Clock Input 4 GND GND 4 GND GND 5 RT Switching Frequency Setting Resistor Connection 5 VC Error Amp Output 6 SW Switching Output 6 VIN (Note 1) Power Supply Input 7 EN / SYNC Enable / External Clock Input 7 PVIN (Note 1) Power Supply Input FIN - GND 8 FB Output Voltage Feedback (Note 1) VIN and PVIN must be shorted. HRP7 HTSOP-J8 Block Diagram HRP7 HTSOP-J8 PWM_LATCH DRV Q S R + - - + + SCP_ LATCH 8 FB 0.8V SOFT_ START Pch POWER MOSFET SLOPE OSC 5 VC 2 SW 1 RT 3 EN / SYNC VREF VREG UVLO TSD 6 EN UVLO TSD OCP SCP_LATCH OFF OCP Current Sense CUR _COMP ERROR_AMP 4 GND OCP 7 PVIN SCP UVLO OCP TSD ∑ EN / SYNC SCP_LATCH VIN PWM_LATCH DRV Q S R + - - + + SCP_ LATCH 0.8V SOFT_ START Pch POWER MOSFET SLOPE OSC VC SW RT EN / SYNC VREF VREG UVLO TSD EN UVLO TSD OCP SCP_LATCH OFF OCP Current Sense CUR _COMP ERROR_AMP GND OCP SCP UVLO OCP TSD EN / SYNC VIN 3 7 2 6 5 4 1 FB SCP_LATCH ∑ FIN 1. VC 2. VIN 3. FB 4. GND 5. RT 6. SW 7. EN / SYNC (TOP VIEW) 1. RT 2. SW 3. EN / SYNC 4. GND 8. FB 7. PVIN 6. VIN 5. VC (TOP VIEW) |
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