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AH9281RTR-G1 Datasheet(PDF) 1 Page - BCD Semiconductor Manufacturing Limited |
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AH9281RTR-G1 Datasheet(HTML) 1 Page - BCD Semiconductor Manufacturing Limited |
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1 / 2 page  Product Brief Two Phase Dual-coil High Voltage Smart Fan Motor Driver with FG/RD AH9281/82 Mar. 2010 BCD Semiconductor Manufacturing Limited 1 Description The AH9281/82 is a one-chip solution for driving two-coil brushless DC motors and fans. 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 open drain output makes easier the connectivity with any external interface such as hardware monitoring or Super I/O IC. The AH9281/82 is available in TO-95 and SOT-89-5 packages. Features • High Sensitivity Integrated Hall Sensor • Low Start-up Voltage • 5V, 12V and 24V 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/24V DC Brushless Motor/Fan • PC, Server, Laptop Cooling Fan • Power Supply Cooling Fan • Large or Small Fans Parametric Table Supply Voltage (V) 2.5 to 24 Output Saturation Voltage ( VCC=12V, IOUT=350mA) (V) 0.6 FG/RD Output Low Voltage ( VCC=12V, IFG=5mA) (V) 0.1 Supply Current (mA) 4 Output ON Time (S) 0.8 Output OFF Time (S) 5 Operating Point (Gauss) 20 Releasing Point (Gauss) -20 Hysteresis (Gauss) 40 Benefits • Minimum External Components • Low Startup Voltage • Locked Protection and Auto-restart • With FG or RD Output • Wide Operation Voltage Range • Excellent Temperature Performance • High Sensitivity for Switching Symmetry • High ESD and Power Efficient Additional Available Materials • Samples • Preliminary Datasheet • Reliability Report • ESD Report |
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