Agamem Microelectronics Inc.
PRELIMINARY
DESCRIPTION
AA51861
SINGLE-PHASE FULL-WAVE FAN MOTOR DRIVER
The AA51861 is a single-phase bipolar drive motor driver that easily implements direct
PWM motor drive systems with excellent efficiency, The AA51861 is optimal for fan motor
drive in personal computer power supply systems and CPU cooling fan systems.
FEATURES
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Built-in Hall Bias Circuit
Built-in PWM Speed Control Circuit
Built-in Minimal Speed Setup Circuit
Rotation Speed Indication (FG)
Rotation or Lock State Indication (RD)
Built-in Thermal Shutdown Circuit
Lock Protection
Maximum 1.0A (Vcc = 16V) Output Current
APPILICATION
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©Copyright
Agamem Microelectronics Inc.
AGAMEM MICROELECTRONICS INCOPERATION RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE
TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. AGAMEM DOES NOT ASSUME ANY
LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCTS OR CIRCUIT DESRIBED HEREIN; NEITHER
DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
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CPU Cooler Fan in PC
Brushless DC Motor Driver
1
www.agamem.com.tw
2009/4/23
AGAMEM [ AGAMEM MICROELECTRONIC INC. ]
