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UC3625 Datasheet Brushless DC Motor Controller

Manufacturer: Texas Instruments

Overview: www.ti.com UC1625 UC2625 UC3625 SLUS353C – NOVEMBER 2003 – REVISED JUNE 2013 Brushless DC Motor Controller Check for Samples: UC1625, UC2625,.

General Description

The UC3625 family of motorcontroller devices integrate most of the functions required for highperformance brushless dc-motor control into one package.

When coupled with external power MOSFETs or Darlingtons, these devices perform fixed-frequency PWM motor control in either voltage or current mode while implementing closed-loop speed control and braking with smart noise rejection, safe direction reversal, and cross–conduction protection.

Although specified for operation from power supplies between 10 V and 18 V, the UC1625 controls higher voltage power devices with external level-shifting components.

Key Features

  • 1.
  • Drives Power MOSFETs or Power Darlingtons Directly.
  • 50-V Open Collector High-Side Drivers.
  • Latched Soft Start.
  • High-Speed Current-Sense Amplifier with Ideal Diode.
  • Pulse-by-Pulse and Average Current Sensing.
  • Over-Voltage and Under-Voltage Protection.
  • Direction Latch for Safe Direction Reversal.
  • Tachometer.
  • Trimmed Reference Sources 30 mA.
  • Programmable Cross-Conduction Protection.
  • Two-Quadrant an.

UC3625 Distributor