LMD18200T

Overview

The LMD18200T is a half-bridge motor driver manufactured by Texas Instruments, designed for brushed DC motor and stepper motor applications. It operates within a supply voltage range of 12 V to 55 V and supports a continuous output current of 3 A. The device features a low quiescent supply current of 13 mA and functions reliably across an extended temperature range from -40 °C to +125 °C. It is housed in a through-hole TO-220-11 package with 11 pins, dissipating up to 25 W of power.

Feature Summary

• Integrated half-bridge architecture for driving brushed DC motors and bipolar stepper coils
• Capable of handling high supply voltages up to 55 V for robust industrial operation
• Designed for thermal efficiency with significant power dissipation capacity in a TO-220 package

Applications

• Hydraulic pump control systems
• Linear actuator positioning circuits
• Bipolar stepper motor drive stages

Procurement Notes

Verify RoHS compliance status carefully, as some sources indicate non-compliance or lead-containing variants for this specific part number. Confirm the exact suffix (e.g., NOPB vs standard) matches your regulatory requirements. Check datasheet revisions for any pinout or electrical characteristic updates before finalizing design integration.

Selection Notes

Select this component when a single-channel half-bridge solution is required for higher voltage DC motor applications. It is suitable for designs needing moderate current handling without external discrete transistors. Ensure adequate heatsinking is provided due to the 25 W dissipation rating and TO-220 form factor constraints.

Part Context

This device belongs to the LMD18200 series of motor controllers. It serves as a dedicated interface between logic-level control signals and high-power motor loads. The TO-220-11 package facilitates easy mounting on heat sinks, making it appropriate for embedded motion control systems where space allows for through-hole assembly.

Replacement Considerations

Publicly confirmed substitute part numbers are not explicitly listed in the provided documentation. Verify compatibility with alternative half-bridge drivers based on voltage, current, and pinout specifications.