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UC3625DW

TIUC3625DW

Texas Instruments
Motor Driver Power MOSFET, Power Darlington Parallel 28-SOIC
Active375 in stock
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Overview

The UC3625DW is a high-performance brushless DC (BLDC) motor controller designed for 10V to 18V systems. It functions as a pre-driver for three half-bridge configurations, integrating commutation logic and direction management for two-quadrant or four-quadrant motor control.

Why Choose This Part

The device features latched soft start and pulse-by-pulse current sensing to protect power stages during startup and stall conditions. It includes a dedicated direction latch to ensure safe transitions during motor reversal and provides a trimmed 30mA reference source for external sensor biasing.

Applications

BLDC Motor Commutation
Automating the switching sequence for three-phase brushless motors using Hall effect sensor inputs.
Precision Velocity Control
Utilizing the integrated high-speed current-sense amplifier and tachometer output for closed-loop speed regulation.
Industrial Robotics
Managing safe direction reversal and cross-conduction protection in robotic joint actuators.

Key Specifications

Function Controller - Commutation, Direction Management
Interface Parallel
Technology Power MOSFET, Power Darlington
Applications General Purpose
Mounting Type Surface Mount
Package / Case 28-SOIC (0.295", 7.50mm Width)
Voltage - Supply 10V ~ 18V
Motor Type - AC, DC Brushless DC (BLDC)
Output Configuration Pre-Driver - Half Bridge (3)
Operating Temperature 0degC ~ 70degC (TJ)
Supplier Device Package 28-SOIC

Getting Started

When designing with the UC3625DW, engineers should prioritize thermal management of the 28-SOIC package and ensure adequate decoupling for the 10V-18V VDD supply. Configure the programmable cross-conduction protection resistors to match the gate drive requirements of the external Power MOSFETs or Darlingtons.

Also Consider

DRV8301 TITexas Instruments - A more modern three-phase gate driver with integrated buck regulator and wider voltage support.
MC33035 ONonsemi - An alternative high-performance monolithic BLDC controller with similar open-loop or closed-loop capabilities.