Two-phase Full-wave DC Brushless Fan Motor Drivers
Datasheet
DC Brushless Motor Drivers for Cooling Fans
Two-phase Full-wave
DC Brushless Fan Motor Drivers
BA6901F
Gener...
Description
Datasheet
DC Brushless Motor Drivers for Cooling Fans
Two-phase Full-wave
DC Brushless Fan Motor Drivers
BA6901F
General description
BA6901F is two-phase half-wave fan motor driver. They incorporate lock protection, automatic restart circuit and FG/AL output. Some of them have variable speed control function.
Package SOP-16
W (Typ.) x D (Typ.) x H (Max.) 10.00mm x 6.20mm x 1.71mm
Features
Current Limit circuit PWM control (PWM pulse signal input) Incorporates lock protection and automatic restart
circuit Lock alarm signal(AL) output Rotation speed pulse signal (FG) output
SOP16
Application For desktop PC, server, general consumer equipment, communication equipment and industrial equipment.
Absolute maximum ratings
Parameter
Symbol
Limit
Supply voltage
Vcc 36
Power dissipation
Pd 625*
Operating temperature
Topr -40 +100
Storage temperature
Tstg -55 +150
Output current
Iomax
70
FG signal output current
Ifg 15
FG signal output voltage
Vfg 36
AL signal output current
Ial 15
AL signal output voltage
Val 36
Junction temperature
Tjmax
150
* Reduce by 5.0mW/°C over Ta=25°C. (On 70.0mm×70.0mm×1.6mm glass epoxy board)
Unit V
mW
mA mA V mA V
Recommended operating conditions Parameter
Operating supply voltage range Hall input voltage range
Symbol Vcc VH
Limit 3.5 28.0 0 Vcc-2.2
Unit V V
Product structure Silicon monolithic integrated circuit w. ww.rohm.com © 2012 ROHM Co., Ltd. All rights reserved. TSZ22111 14 001
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