Description
Data Sheet Two Phase Dual-coil High Voltage Smart Fan Motor Driver with FG/RD AH9281/82 General .
The AH9281/82 is a one-chip solution for driving two-coil brushless DC motors and fans.
Features
* High Sensitivity Integrated Hall Sensor
* Low Start-up Voltage
* 5V and 12V Operation
* Peak Output Current up to 1200mA
* Power Efficient CMOS and Power MOSFETs
* Built-in Output Protection Clamping Diode
* Locked Rotor Shutdown and Auto-res
Applications
* 5V/12V DC Brushless Motor/Fan
* PC, Server, Laptop Cooling Fan
* Power Supply Cooling Fan
* Large or Small Fans
TO-95
SOT-89-5
Figure 1. Package Types of AH9281/82
Oct. 2011 Rev. 1. 4
BCD Semiconductor Manufacturing Limited 1
Data Sheet
Two Phase Dual-coil Hig