AA51861 AGAMEM | Alldatasheet
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Technical content
Agamem Microelectronics Inc. AA51861 PRELIMINARY SINGLE -PHASE FULL -WAVE FAN MOTOR DRIVER ©Copyright Agamem Microelectronics Inc. www.agamem.com.tw 2009/4/23 AGAMEM MICROELECTRONICS INCOPERATION RESERVES THE R IGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNC TION 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. /g717/g33 DESCRIPTION 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. /g717 /g289 FEATURES /g122 Built-in Hall Bias Circuit /g122 Built-in PWM Speed Control Circuit /g122 Built-in Minimal Speed Setup Circuit /g122 Rotation Speed Indication (FG) /g122 Rotation or Lock State Indication (RD) /g122 Built-in Thermal Shutdown Circuit /g122 Lock Protection /g122 Maximum 1.0A (Vcc = 16V) Output Current /g717 /g289 APPILICATION /g122 CPU Cooler Fan in PC /g122 Brushless DC Motor Driver /g33