LMD18200 H-Bridge Module for DC Motor

  • Rajkumar Sharma
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LMD18200_Module_M029

The module has been designed around LMD18200 from Texas Instruments. The LMD18200 is a 3A H-Bridge designed for motion control applications. The device is built using a multi-technology process which combines bipolar and CMOS control circuitry with DMOS power devices on the same monolithic structure. Ideal for driving DC and stepper motors; the LMD18200 accommodates peak output currents up to 6A. An innovative circuit which facilitates low-loss sensing of the output current has been implemented.

Features

  • Powerful bi-directional DC Motor driver
  • Screw-terminals for Power Supply and Motor Connections
  •  6-pin Header connector for PWM, direction, current sense, Brake
  • Delivers Up to 3A Continuous Output (6A Peak)
  • Operates at Supply Voltages Up to 55V
  • Low RDS (ON) Typically 0.33Ω per Switch at 3A
  • TTL and CMOS Compatible Inputs
  • No “Shoot-Through” Current
  • Thermal Warning Flag Output at 145°C
  • Thermal Shutdown (Outputs Off) at 170°C
  • Internal Clamp Diodes
  • Shorted Load Protection
  • Internal Charge Pump with External Bootstrap Capability
  • Mounting holes of 2.6 mm each
  •  PCB dimensions 44 mm x 25 mm

Schematic

LMD18200_Module_sch

Parts List

LMD18200_Module_BOM

Connections

LMD18200_Module_connections

Photos

LMD18200_Module_M029B

LMD18200_Module_M029c

PCB

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