LMD18400N/NOPB

Overview

The LMD18400N/NOPB is a quad high-side gate driver manufactured by Texas Instruments, designed for driving external power MOSFETs. It operates within a supply voltage range of 7 V to 28 V and supports through-hole mounting in a PDIP-20 package. The device features four independent drivers with a maximum power dissipation of 5 W. Key electrical characteristics include a rise time of 7 µs and a fall time of 150 ns. It functions reliably across an operating temperature range from -25°C to +85°C, drawing a typical supply current of 15 mA.

Feature Summary

• Integrates four independent high-side gate drivers for external MOSFET control
• Includes thermal shutdown protection to safeguard against overheating
• Provides fault reporting capabilities for system monitoring
• Compatible with digital and I2C logic interfaces

Applications

• Brushed DC motor drive circuits
• Stepper motor control systems
• Industrial automation equipment requiring multiple high-side switches
• Automotive electronic modules

Procurement Notes

Verify the exact part number suffix, as variations may indicate different packaging or temperature grades. Confirm RoHS compliance status through official manufacturer documentation before integration. Check current lifecycle status, as this component may be subject to discontinuation or obsolescence notices. Ensure that the PDIP-20 footprint matches your PCB design requirements and that thermal management solutions are adequate for the specified power dissipation limits.

Selection Notes

Select this component when a single IC solution is required to drive multiple high-side loads efficiently. It is suitable for applications needing integrated fault detection and thermal protection without external discrete components. Consider the PDIP-20 package constraints if space is limited. Evaluate the 7 µs rise time against switching frequency requirements to ensure acceptable performance levels for the target application speed.

Part Context

This device belongs to the LMD18400 series of gate drivers from Texas Instruments. It is categorized under Half-Bridge Drivers and Gate Drivers within the PMIC product family. The component utilizes Silicon technology and is intended for power management applications involving motor control and switching regulation.

Replacement Considerations

Publicly confirmed substitute part numbers were not identified in the provided source material.