BCD Semiconductor Manufacturing Limited AH9282
The AH9281/82 is a one-chip solution for driving two-coil brushless DC motors and fans. The open drain output makes easier the connectivity with any external interface such as hardware monitoring or Super I/O IC.GENERAL DESCRIPTION
Based on the advanced CDMOS process, the IC contains a Hall-effect sensor, dynamic offset correction and powerful output drivers with 1200mA peak output current capability. Specially designed for driving large fans, the device is optimized for low start-up voltage. Frequency Generator or Rotation Detection is available. The AH9281/82 is available in TO-95 and SOT-89-5 packages.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-restart
● Integrated Tachometer (AH9281) or Alarm (AH9282) Signal Output
● ESD Rating: 6000V (Human Body Model) 400V (Machine Model)
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...