Texas Instruments

LMD18200T

LMD18200T Description

The LMD18200T from Texas Instruments is a high-performance 3A brushed DC and bipolar stepper motor driver IC designed for general-purpose applications. Operating within a 12V to 55V supply range, it features a low-side (2) output configuration, making it suitable for driving motors in demanding industrial and automation environments. Packaged in a TO-220-11 through-hole format, this driver is optimized for parallel interface control, ensuring straightforward integration into existing systems. Although marked as "Not For New Designs", it remains a reliable choice for legacy systems due to its robust performance and compliance with ROHS3 and REACH environmental standards.

LMD18200T Features

• High Current Handling: Delivers up to 3A continuous output current, ideal for driving medium-power brushed DC and bipolar stepper motors.
• Wide Voltage Range: Supports 12V–55V operation, accommodating diverse power supply configurations.
• Low-Side Drive: Dual low-side outputs simplify circuit design while providing efficient motor control.
• Parallel Interface: Enables direct microcontroller interfacing for seamless system integration.
• Environmental Compliance: ROHS3 and REACH compliant, ensuring adherence to global environmental regulations.
• Robust Packaging: TO-220-11 through-hole mounting offers mechanical durability and efficient thermal dissipation.

LMD18200T Applications

The LMD18200T excels in applications requiring precise motor control, including:

• Industrial Automation: Driving conveyor belts, actuators, and robotic arms in manufacturing systems.
• CNC Machines: Controlling stepper motors for accurate positioning and motion control.
• Legacy Equipment: Upgrading or maintaining older motor-driven systems where modern alternatives are incompatible.
• Lab Instruments: Powering brushed DC motors in precision measurement devices.

Conclusion of LMD18200T

While the LMD18200T is no longer recommended for new designs, its high current capability, wide voltage range, and proven reliability make it a viable solution for maintaining or upgrading existing systems. Its low-side drive architecture and parallel interface simplify integration, while compliance with environmental standards ensures long-term usability. Engineers working with brushed DC or bipolar stepper motors in industrial or legacy applications will find this driver a dependable choice.