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BD8963EFJ-E2 Datasheet(PDF) 2 Page - Rohm |
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BD8963EFJ-E2 Datasheet(HTML) 2 Page - Rohm |
2 / 18 page Technical Note 2/17 www.rohm.com 2010.06 - Rev.A © 2010 ROHM Co., Ltd. All rights reserved. BD8963EFJ ● Electrical characteristics ◎ BD8963EFJ(Unless otherwise specified , Ta=25℃ VCC=5V, EN=VCC, R1=20kΩ, R2=7.5kΩ) Parameter Symbol Limits Unit Conditions Min. Typ. Max. Standby Current ISTB - 5 20 µA EN=GND Bias Current ICC - 350 600 µA EN Low Voltage VENL - GND 0.3 V Stand-by Mode EN High Voltage VENH 2.0 VCC - V Active Mode EN Current IEN - 1.25 10 µA VEN=5V Oscillation Frequency FOSC 0.8 1 1.2 MHz Pch FET ON Resistance RONP - 145 290 mΩ VCC=5V Nch FET ON Resistance RONN - 80 160 mΩ VCC=5V ADJ Reference Voltage VADJ 0.788 0.800 0.812 V COMP SINK Current ICOSI 10 25 - µA VADJ=1.0V COMP Source Current ICOSO 10 25 - µA VADJ=0.6V UVLO Threshold Voltage VUVLO1 2.400 2.500 2.600 V Vcc=5V→0V UVLO Hysteresis Voltage VUVLO2 2.425 2.550 2.700 V Vcc=0V→5V Soft Start Time TSS 0.5 1 2 ms Timer Latch Time TLATCH 1 2 4 ms Output Short circuit Threshold Voltage VSCP - VOUT×0.5 VOUT×0.7 V VOUT=1.0V→0V ● Physical dimension ● Block diagram・Application circuit ● Pin No. & function table Pin No. Pin name PIN function 1 COMP GmAmp output pin/Connected phase compensation capacitor 2 GND Ground 3 EN Enable pin(Active High, Open Active) 4 VCC VCC power supply input pin 5 SW Pch/Nch FET drain output pin 6 SW Pch/Nch FET drain output pin 7 N.C Non Connect 8 ADJ Output voltage detect pin HTSOP-J8 (unit:mm) 87 6 5 12 3 4 0.42 +0.05 -0.04 S 4.9 ±0.1 0.545 1.27 0.17 +0.05 -0.03 Max5.25(include.BURR) (3.2) 0.08 S 0.08 M 4 +6 -4 Lot No. BD8963 Fig.1 BD8963EFJ TOP View Fig.2 BD8963EFJ Block Diagram TSD Output Input VCC SW Gm Amp R S Q OSC UVLO + VCC CLK SLOPE Current Comp 4 5 2 Soft Start Current Sense/ Protect + Driver Logic + VREF COMP ADJ 1 8 SCP 6 3 VCC EN GND |
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