36V High-performance and High-reliability Withstand Voltage Stepping Motor Driver - BD63730EFV

BD63730EFV is a low-power motor driver that drives load by PWM current. Rated power supply voltage of the device is 36V, and rated output current is 3.0A. The input interface are interchangeable between CLK-IN drive mode and the PARALLEL-IN drive mode, and excitation mode is corresponding to FULL STEP, HALF STEP (2 types), and QUARTER STEP modes 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.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part Number
Unit Quantity
Minimum Package Quantity
Packing Type
BD63730EFV-E2 Active HTSSOP-B54 1500 1500 Taping Yes
Grade Standard
Vcc (Max.)[V] 36.0
Power Supply Voltage (Max.)[V] 28.0
Power Supply Voltage (Min.)[V] 19.0
Iout (Max.)[A] 3.0
Iout Peak (Max.)[A] 3.5
Output On Resistance (Typ.)[Ω] 0.4
Interface CLK / PARA-IN
Step to 1 / 4
MIX DECAY Function Yes
Single power supply input Yes
Automotive class No
Operating Temperature (Min.)[°C] -25
Operating Temperature (Max.)[°C] 85
    • Rated output current of 3.0A DC
    • Low ON-Resistance DMOS output
    • CLK-IN drive mode
    • PARALLEL-IN drive mode
    • PWM constant current control (other oscillation)
    • Built-in spike noise cancel function (external noise filter is unnecessary)
    • Full-step, half-step (two types), and quarter-step functionality
    • Dynamic 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)
    • Electrostatic discharge: 4kV (HBM specification)
    • Adjacent pins short protection
    • Micro miniature, ultra-thin and high heat-radiation (exposed metal type) package
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Thermal Resistance