Diodes Incorporated

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ZXBM2002 (Not Recommended for new design)

NRND = Not Recommended for New Design

Two Phase BLDC Fan and Motor Driver with Complementary Open Darlington Emitter Output

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The ZXBM2002 is a series of 2-phase, DC brushless motor pre-drivers with PWM variable speed control suitable for fan and blower motors.


  • Built in lock detect protection, rotational speed sensing and automatic recovery
  • Built in Hall amplifier allows direct connection to Hall element
  • PWM Speed control via - External voltage - Thermistor input - External PWM source
  • Speed (FG) pulse output – ZXBM2003
  • Rotor lock output – ZXBM2002
  • Combined Rotor Lock (RD) and Speed (FG) signal – ZXBM2001
  • Up to 18V input voltage (60V with external regulator)
  • MSOP10 package
  • Application(s)

  • Mainframe and Personal Computer Fans and Blowers
  • Instrumentation Fans
  • Central Heating Blowers
  • Automotive climate control
  • Product Specifications

    Product Parameters

    Frequency Generator (FG) and Rotation Detect FG
    Lock Detect, Shut-Down and Auto Start Yes
    Low Side Switch Drive Sink Current -
    Low Side Switch Drive Source Current (mA) 80
    Minimum Speed Setting -
    Operating Ambient Temperature (°C) -40 to 85
    Operating Voltage (V) 4.5 to 18
    Reference Voltage Output (V) -
    Speed Control VSPD or VDD
    SupplyCurrent (mA) -

    Related Content


    Technical Documents

    Recommended Soldering Techniques


    RoHS CofC

    Product Change Notices (PCNs)

    A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

    PCN # Issue Date Implementation Date Subject
    PCN-2594 2022-08-31 2023-02-28 Device End of Life (EOL)