BA6901F is a 2-phase half-wave motor pre driver for fan motors. This IC has lock detection, and automatic restart functions as motor protection function.
Variable speed control is possible by charge-discharge pulse circuit and PWM input. This IC incorporates current limit circuit, hall signal output pin, and alarm signal output pin.

FEATUREs
1) Lock detection, automatic restart circuit.
2) Hall signal output.
3) Alarm signal output.
4) Current limit circuit.
5) PWM control (PWM pulse signal input).
6) Charge-discharge pulse circuit (Possible to control of variable speed by charge-discharge pulse circuit and PWM input).
7) Thermal shut down circuit.

APPLICATIONs
    Fan motors