BA6901F
Motor driver ICs
1/10
2-Phase half-wave motor pre driver for
fan motor
BA6901F
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.
!Applications
Fan motors
!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.
!Absolute maximum ratings (Ta = 25°C)
Parameter Symbol Limits Unit
Power supply voltage VCC
IOUT
VSO
ISO
Tjmax
36
36
15
150
∗1
∗2
70
V
mA
°C
mA
V
Power dissipation Pd 625 mW
Operating temperature Topr °C
°CStorage temperature
Output current
Signal output voltage
Junction temperature
Signal output current
Tstg
∗1 To use at temperature above 25°C reduce 5.0mW / °C.
(On 70.0mm×70.0mm×1.6mm glass epoxy board.)
∗2 This value is not to be over Pd and ASO.
−25~+75
−55~+150
!Recommended operating conditions (Ta = 25°C)
Parameter Symbol Min. Typ. Max. Unit
Operating supply voltage VCC 3.5 − 28.0 V