Rohm BH6717NUV Data Sheet
Summary
This specialized motor driver is designed for controlling three-phase full-wave fan motors via PWM signals, featuring sensorless and soft-switching capabilities. The comprehensive manual provides critical technical details, including absolute maximum ratings, precise electrical characteristics, and essential cautions regarding thermal design and power supply integrity. It is an indispensable resource for hardware engineers developing reliable, professional HVAC or industrial fan solutions requiring accurate speed control.
Page 1 Text Content
STRUCTURE Silicon Monolithic Integrated Circuit
PRODUCT SERIES Three-Phase Full-Wave Motor Driver for Fan Motor
TYPE BH6717NUV
FEATURES Speed controllable by PWM input signal Sensorless drive Soft switched drive Power save function
〇ABSOLUTE MAXIMUM RATINGS
Parameter Symbol Limit Unit
Supply voltage VCC -0.3～6.5 V Power dissipation Pd 560＊ m W Operating temperature Topr -25～+95 ℃ Storage temperature Tstg -55～+125 ℃ Output current Iomax 700＊＊ m A FG signal output voltage VFG 6.5 V FG signal output current IFG 6 m A Junction temperature Tjmax 125 ℃ ＊ Reduce by 5.6m W/℃ over 25℃. (On 70.0mm×70.0mm×1.6mm glass epoxy board) ＊＊ This value is not to exceed Pd.
〇OPERATING CONDITIONS
Parameter Symbol Limit Unit
Operating supply voltage range VCC 1.8～5.5 V ＊This product is not designed for production against radioactive rays. ＊This document may be strategic data subject to COCOM regulations.
REV. A
Page Summary Contents For Rohm BH6717NUV Data Sheet
Manual Details
| Brand | ROHM |
|---|---|
| Pages | 4 |
| File Size | 102.38 KB |
| Published | June 20, 2026 |
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Frequently Asked Questions
What safeguards must be implemented when exceeding absolute maximum ratings?
Physical safety measures, such as installing a fuse, are required because failure modes cannot be defined if limits are exceeded.
How should regenerated current from the power supply line be managed?
Place a capacitor between the power supply and GND to handle back electromotive force (EMF) and recurring currents.
What is the function of the Thermal Shut Down circuit?
It causes the output terminal to enter an open state solely to stop overheating; do not use or rely on the IC after this circuit activates.