Rohm BH6766FVM Data Manual/Sheet
Summary
The BH6766FVM is a soft-switched single-phase full-wave motor driver IC designed for fan motors. It features a Hall input, FG signal output, and thermal shutdown, suitable for 2.0V to 6.0V operating conditions.
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STRUCTURE Silicon Monolithic Integrated Circuit
PRODUCT SERIES Single-Phase Full-Wave Motor Driver for Fan Motor
TYPE ＢＨ６７６６ＦＶＭ
FEATURES Soft switched drive
〇ABSOLUTE MAXIMUM RATINGS
Parameter Symbol Limit Unit
Supply voltage Vcc 7 V Power dissipation Pd 585＊ m W Operating temperature Topr -40～+105 ℃ Storage temperature Tstg -55～+150 ℃ Output current Iomax 630＊＊ m A FG signal output current IFG 5 m A FG signal output voltage VFG 7 V Junction temperature Tjmax 150 ℃ ＊ Reduce by 4.68m W/℃ over 25℃. (On 70.0mm×70.0mm×1.6mm glass epoxy board) ＊＊ This value is not to exceed Pd. Vcc=4.0V～6.0V At Vcc=2.0V～4.0V,output current tolerance reduces.
〇OPERATING CONDITIONS
Parameter Symbol Limit Unit
Operating supply voltage range Vcc 2.0～6.0 V Hall input voltage range VH 0.4～Vcc-1.1 V
＊This product is not designed for production against radioactive rays.
REV. E
Page Summary Contents For Rohm BH6766FVM Data Manual/Sheet
Manual Details
| Brand | ROHM |
|---|---|
| Pages | 4 |
| File Size | 87.29 KB |
| Published | June 15, 2026 |
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Frequently Asked Questions
What is the operating voltage range for this motor driver IC?
The operating supply voltage range (Vcc) is from 2.0V to 6.0V.
How should I handle the power supply to avoid damaging the IC?
Avoid reverse polarity connection and consider adding an external direction diode. Place a capacitor between power supply and GND to handle regenerated current.
What is the maximum power dissipation (Pd) for this device?
The absolute maximum power dissipation (Pd) is 585 mW on a specified board, reducing by 4.68mW/°C above 25°C.
When does the thermal shutdown (TSD) circuit activate?
The built-in TSD circuit operates at a typical temperature of 175°C with a 25°C hysteresis, opening the output terminal.
What is the maximum output current for this driver?
The absolute maximum output current (Iomax) is 630 mA, provided it does not exceed the power dissipation (Pd) limit.