BA6427F Datasheet, PDF (1/5 Pages) Rohm – Single-phase full-wave motor driver

Motor driver ICs
Single-phase full-wave motor driver
BA6427F
The BA6427F is a single-phase full-wave motor driver for fan motors. By using this driver, a single-phase, full-wave motor
driver circuit can be built with fewer components than a circuit using operational amplifiers. Lock detection and automatic
restart mechanisms, which are required for fan motors, are also built in. A rotational-speed sensing output pin is provided
for Ho output.
FApplications
Single-phase, full-wave fan motors
FFeatures
1) Equipped with lock detection and rotational-speed
sensing functions.
2) Compact SOP-8 package reduces the number of ex-
ternal components for a reduced mounting area.
3) Automatic restart when the motor lock is undone.
FAbsolute maximum ratings (Ta = 25_C)
FRecommended operating conditions
763