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Variable-Speed Single-Phase Full-Wave Fan-Motor Pre-Driver


Package | PIN: PW | 16
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $0.81
10-24 $0.73
25-99 $0.67
100-249 $0.57
250-499 $0.53
500-749 $0.43
750-999 $0.35
1000+ $0.31


  • Single-Phase Full-Wave Driving Predriver
    • Low Saturation Drive Using External P-channel
      Devices at Top and N-channel Devices in
      Bottom in H-bridge Configuration Enables
      High-Efficiency Low-Power Consumption Drive
  • Variable Speed Control Possible With External
    PWM Input
    • Separately Excited Upper Direct PWM (f = 30
      kHz) Control Method Ensures Quiet Speed
  • Current Limiter Circuit Incorporated
    • Chopper Type Current Limiting Made at Start-
      up and During Lock
  • Reactive Current Cut Circuit Incorporated
    • Reactive Current Before Phase Change Is Cut
      to Enable Silent and Low-Consumption Drive
  • Minimum-Speed Setting Pin
    • Minimum Speed Can be Set With External
  • Soft-Start Setting Pin
  • Lock Protection and Automatic Reset Circuits
  • Rotation Speed Detection (FG) and Lock Detection (RD)
  • Thermal Shutdown Circuit Incorporated

Texas Instruments  TMP815PWR

The TMP815 device is a single-phase bipolar driving motor predriver with a variable-speed function that is compatible with an external PWM signal. A highly efficient and quiet variable-drive fan motor with low-power consumption can be achieved with few external parts.

This device is best suited for driving of the servers requiring large air flow and large current or the fan motors of consumer appliances.