Diodes Incorporated
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ZXBM1015 (Obsolete)

Single Phase BLDC Fan and Motor Pre-Driver with Adjustable Current Limit

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The ZXBM1015 is a Single-Phase, DC brushless motor pre-driver with PWM variable speed control and current limit features suitable for fans, blowers and pump motors. Where the system dictates, this device can be control°C via an external voltage, PWM signal or thermistor.


  • Compliant with external PWM speed control
  • Compliant with thermistor control
  • Minimum speed setting
  • Low noise
  • Auto restart
  • Built in Hall amplifier
  • Speed pulse (FG) and lock rotor (RD) outputs
  • Current Limiting
  • Variable commutation delay
  • Up to 18V input voltage (60V with external regulator)
  • Small TSSOP20 package
  • Lead free product


  • Mainframe and personal computer fans and blowers
  • Instrumentation fans
  • Central heating blowers
  • Automotive climate control

Product Specifications

Product Parameters

Adjustable Current Limit Yes
Frequency Generator (FG) and Rotation Detect FG and RD
Hall Bias Voltage (V) 1.75
High Side Switch Drive Sink Current (mA) 100
Lock Detect, Shut-Down and Auto Start Yes
Low Side Switch Drive Source Current (mA) 80
Minimum Speed Setting Yes
Operating Ambient Temperature (°C) -40 to 110
Operating Voltage (V) 4.7 to 18
Reference Voltage Output (V) 3
Speed Control VSPD or PWM
SupplyCurrent (mA) -
Tail End Current Control -

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