ROHM BD6971FS Data Sheet
Summary
The BD6971FS is a high-reliability monolithic integrated circuit designed as a single-phase full-wave motor driver for precise fan motor control. It features PWM soft switching and an essential current limit circuit, enabling speed regulation via DC/PWM input. The accompanying manual provides system designers and electronics engineers with comprehensive technical documentation, including absolute maximum ratings, detailed electrical characteristics, block diagrams, and critical cautions on use necessary for reliable industrial equipment design.
Page 1 Text Content
STRUCTURE Silicon Monolithic Integrated Circuit
PRODUCT SERIES Single-Phase Full-Wave Motor Driver for Fan Motor
TYPE ＢＤ６９７１ＦＳ
FEATURES Speed controllable by DC/PWM input Current limit circuit PWM soft switching drive
〇ABSOLUTE MAXIMUM RATINGS
Parameter Symbol Limit Unit
Supply voltage Vcc 20 V Power dissipation Pd 812.5＊ m W Operating temperature Topr -40 to +100 °C Storage temperature Tstg -55 to +150 °C Output current Iomax 1.0＊＊ A FG output current IFG 10 m A FG output voltage VFG 20 V REF current ability IREF 5 m A HB current ability IHB 5 m A Input voltage(H+, H-, TH, MIN, CS) VIN 7 V Junction temperature Tjmax 150 °C ＊Reduce by 6.5m W/°C over Ta=25°C. (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 3.5 to 17.0 V
0 to Vcc-2.0 V less than Vcc=9.0V
Hall input voltage range VH
0 to 7.0 V more than Vcc=9.0V
TH input voltage range VTH 0 to VREF V MIN input voltage range VMIN 0 to VREF V ＊This product is not designed for production against radioactive rays.
REV. B
Page Summary Contents For ROHM BD6971FS Data Sheet
Manual Details
| Brand | ROHM |
|---|---|
| Pages | 5 |
| File Size | 93.69 KB |
| Published | June 15, 2026 |
Enter the captcha to get the download link:
