99W031A
High reliability
2-phase half-wave motor pre-driver
BA6409F
Description
The BA6409F is a two-phase half-wave motor pre-
driver for fan motors. The built-in protection diode
eliminates an external diode and the concern of
connecting in reverse when fan motors equipped.
The device also has a lock-up detector and
automatic restart function. There is a lock-up
detector output pin on the IC.
Features
1) Built-in discrete diode for reverse connection
protection. (Maximum reverse connection
protection voltage: 80V)
2) Lock-up detector function & lock-up detector
output pin.
3) Compact SOP8-pin package. Fewer external
components make mounting spaces smaller.
4) Automatic restart when lock-up is removed.
5) Hall element input hysteresis circuit is built-in.
Applications
Two-phase half-wave motor pre-driver for fan motor
Absolute Maximum Ratings
(Ta=25藲C)
Parameter
Applied voltage
Power dissipation
Operating temperature
Storage temperature
Output current
Junction temperature
Symbol
V
CC
Pd
Topr
Tstg
I
OMAX
T
jmax
Limits
30
550
*
鈥?0 ~ +75
鈥?5 ~ +125
70
125
Unit
V
mW
藲C
藲C
mA
藲C
Dimension
(Units : mm)
SOP8
*Derating : 5.5mW/藲C for operation above Ta=25藲C
(Mounted on a 70.0mm樓70.0mm樓1.6mm glass epoxy PCB.)
1999
5
22
1
2
