LM5101M

Overview

The LM5101M is a high-voltage half-bridge gate driver manufactured by Texas Instruments, designed for driving power MOSFETs and IGBTs. It integrates independent high-side and low-side drivers in an 8-pin SOIC package. The device supports a supply voltage range of 9 V to 14 V and delivers a peak output current of 1.8 A. Key electrical parameters include a maximum propagation delay of 56 ns, with rise and fall times of 600 ns each. It operates within a temperature range of -40 °C to +125 °C and features TTL-compatible logic inputs.

Feature Summary

• Integrates independent high-side and low-side gate drivers for half-bridge configurations
• Provides robust drive capability with 1.8 A peak source and sink currents
• Features TTL-compatible logic inputs for direct interface with standard control signals

Applications

• High-voltage motor control systems
• Industrial power conversion circuits
• Inverter bridge driver stages

Procurement Notes

Verify the specific suffix 'M' indicates tube packaging when sourcing components. Confirm RoHS compliance status through official manufacturer documentation or authorized distributors. Ensure the part number matches the exact pinout and thermal characteristics required for the target PCB layout design.

Selection Notes

Select this component for applications requiring moderate switching speeds with a 1.8 A drive strength. Consider the 56 ns propagation delay for timing-sensitive designs. Evaluate the SOIC-8 package constraints against available board space and thermal dissipation requirements compared to higher-current alternatives like the LM5101A series.

Part Context

This device belongs to the LM5101 family of high-voltage gate drivers from Texas Instruments. It serves as a cost-effective solution for general-purpose half-bridge applications where extreme switching speed is not critical. The family includes variants with different output currents and packages, such as the LM5101BMAX and LM5101AM.

Replacement Considerations

LM5101BMAX/NOPB offers faster switching times (26 ns delay) and 2 A current. LM5101AM/NOPB provides increased 3 A drive capability with similar delay characteristics.