36V High-performance, High-reliability Withstand Voltage Stepper Motor Driver

BD63910MUV is a bipolar low-consumption driver that driven by PWM current. Rated power supply voltage of the device is 36V, and rated output current is 1.0A. CLK-IN and PARA-IN driving mode is adopted for input interface, and excitation mode is corresponding to FULL STEP mode (2 kinds), HALF STEP mode (3 kinds), QUARTER STEP mode (2 kinds), 1/8 step mode and 1/16 step mode via a built-in DAC. In terms of current decay, the FAST DECAY/SLOW DECAY ratio may be set without any limitation, and all available modes may be controlled in the most appropriate way. In addition, the power supply may be driven by one single system, which simplifies the design.

Data Sheet Buy * Sample *
* This is a standard-grade product.
For Automotive usage, please contact Sales.

Product Detail

Part Number | BD63910MUV-E2
Status | Recommended
Package | VQFN028V5050
Unit Quantity | 2500
Minimum Package Quantity | 2500
Packing Type | Taping
RoHS | Yes




Vcc (Max.)[V]


Power Supply Voltage (Max.) [V]


Power Supply Voltage (Min.) [V]


Iout (Max.)[A]


Iout Peak (Max.)[A]


Output On Resistance (Typ.)[Ω]





to 1 / 16

Automotive class


Operating Temperature (Min.)[°C]


Operating Temperature (Max.)[°C]


Package Size [mm]

5x5 (t=1)


  • Rated output current (DC) 1.0A
  • Low ON resistance DMOS output
  • CLK-IN and PARA-IN drive mode
  • PWM constant current (other oscillation)
  • Built-in spike noise cancel function
    (external noise filter is unnecessary)
  • Full (two kinds)-, half (three kinds)-, quarter (two kinds)-, 1/8-, 1/16-step functionality
  • Freely timing excitation mode switch
  • Current decay mode switch
    (linearly variable FAST/SLOW DECAY ratio)
  • Normal rotation & reverse rotation switching function
  • Power save function
  • Built-in logic input pull-down resistor
  • Power-on reset function
  • Thermal shutdown circuit (TSD)
  • Over-current protection circuit (OCP)
  • Under voltage lock out circuit (UVLO)
  • Over voltage lock out circuit (OVLO)
  • Ghost Supply Prevention
    (protects against malfunction when power supply is disconnected)
  • Adjacent pins short protection
  • Microminiature, ultra-thin and high heat-radiation (exposed metal type) package

Design Resources


Technical Articles

Schematic Design & Verification

  • Method for Monitoring Switching Waveform
  • Importance of Probe Calibration When Measuring Power: Deskew
  • Impedance Characteristics of Bypass Capacitor

Thermal Design

  • What Is Thermal Design
  • Basics of Thermal Resistance and Heat Dissipation
  • Method for Calculating Junction Temperature from Transient Thermal Resistance Data
  • Notes for Temperature Measurement Using Thermocouples
  • Two-Resistor Model for Thermal Simulation
  • Notes for Temperature Measurement Using Forward Voltage of PN Junction
  • Thermal Resistance
  • Precautions When Measuring the Rear of the Package with a Thermocouple



  • VQFN028V5050 Footprint / Symbol
  • VQFN028V5050 3D STEP Data

Packaging & Quality

Package Information

  • Package Information

Manufacturing Data

  • Factory Information

Environmental Data

  • REACH SVHC Non-use Declaration