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BD8112EFV-M Datasheet(PDF) 2 Page - Rohm |
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BD8112EFV-M Datasheet(HTML) 2 Page - Rohm |
2 / 23 page Technical Note 2/22 www.rohm.com 2011.08 - Rev.C © 2010 ROHM Co., Ltd. All rights reserved. BD8112EFV-M ● Operating conditions (Ta=25℃) Parameter Symbol Limits Unit Power supply voltage VCC 5.0~30 V Oscillating frequency range FOSC 250~600 kHz External synchronization frequency range *4 *5 FSYNC fosc~600 kHz External synchronization pulse duty range FSDUTY 40~60 % *4 Connect SYNC to GND or OPEN when not using external frequency synchronization. *5 Do not switch between internal and external synchronization when an external synchronization signal is input to the device. ● Electrical characteristics (Unless otherwise specified, VCC=12V Ta=25℃) Parameter Symbol Limits Unit Conditions Min Typ Max. Circuit current ICC - 7 14 mA EN=Hi, SYNC=Hi, RT=OPEN PWM=Low, ISET=OPEN, CIN=10µF Standby current IST - 4 8 µA EN=Low [VREG Block (VREG)] Reference voltage VREG 4.5 5 5.5 V IREG=-5mA, CREG=2.2µF [OUTH Block] OUTH high-side ON resistance RONHH 1.5 3.5 7.0 Ω ION=-10mA OUTH low-side ON resistance RONHL 1.0 2.5 5.0 Ω ION=10mA Over-current protection operating voltage VOLIMIT VCC -0.66 VCC -0.6 VCC -0.54 V [OUTL Block] OUTL high-side ON resistance RONLH 2.0 4.0 8.0 Ω ION=-10mA OUTL low –side ON resistance RONLL 1.0 2.5 5.0 Ω ION=10mA [SW Block] SW low -side ON resistance RON_SW 2.0 4.5 9.0 Ω ION_SW=10mA [Error Amplifie Block] LED voltage VLED 0.9 1.0 1.1 V COMP sink current ICOMPSINK 15 25 35 µA VLED=2V, Vcomp=1V COMP source current ICOMPSOURCE -35 -25 -15 µA VLED=0V, Vcomp=1V [Oscillator Block] Oscillating frequency FOSC 285 300 315 KHz RT=100kΩ ◎ This product is not designed for use in radioactive environments. |
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