LMD18200T Texas IC MTR DRV BIPLR 12-55V TO220-11

The LMD18200T from Texas Instruments is a high-performance H-Bridge motor driver IC designed to control bi-polar stepper motors and DC motors. It offers a wide input voltage range (12-55V) and comes in a TO-220-11 package. Below is an overview of the LMD18200T, highlighting its features, applications, specifications, and working principles:


LMD18200T Overview:

  • Manufacturer: Texas Instruments (TI)
  • IC Type: Motor Driver (H-Bridge Configuration)
  • Package: TO-220-11 (Through Hole)
  • Input Voltage Range: 12-55V
  • Output Current: Up to 3A continuous (per channel)
  • Control Configuration: Bi-polar
  • Output Type: Full, Half, and Micro-Stepping motor control

Key Features:

  • H-Bridge Configuration: Enables bidirectional control of DC motors or bi-polar stepper motors.
  • Wide Input Voltage Range: Supports a broad range from 12V to 55V, making it versatile for various motor applications.
  • High Output Current: Capable of driving motors with continuous currents up to 3A per channel.
  • Thermal Shutdown: Integrated thermal shutdown protection to prevent overheating.
  • PWM Control: Supports Pulse Width Modulation for speed control and precise motor operation.


  • Robotics: Used in robot platforms for controlling motor movement and direction.
  • CNC Machines: Employed in CNC (Computer Numerical Control) machines for motor control.
  • Automation: Integrated into various automated systems for motorized mechanisms.
  • DIY Projects: Popular in hobbyist projects for motor control applications.


  • Maximum Supply Voltage: 55V
  • Maximum Output Current: 3A per channel
  • Operating Temperature Range: Typically specified by the manufacturer.
  • Protection Features: May include Overcurrent Protection and Thermal Shutdown.
  • Control Interfaces: Supports various control signals for motor direction and speed regulation.

Working Principle:

  • The H-Bridge configuration of the LMD18200T allows for bidirectional control of motors by effectively controlling the current flow through the motor windings.
  • By using PWM signals to drive the H-Bridge inputs, the LMD18200T regulates the speed and direction of the connected motor.
  • It offers flexibility in controlling different types of motors in applications requiring precise motor control.


  • The LMD18200T is a robust and versatile motor driver IC suitable for a wide range of motor control applications.
  • Consider heat dissipation requirements and proper PCB layout for efficient operation and to maximize the driver's capabilities.

The Texas Instruments LMD18200T motor driver IC is a high-quality solution for driving bi-polar stepper motors and DC motors in various applications that demand precise motor control capabilities. For detailed circuit design, application notes, and operational guidelines, refer to the official datasheet provided by Texas Instruments.

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