LM5101ASD

Overview

The LM5101ASD is a high-voltage half-bridge MOSFET gate driver manufactured by Texas Instruments. It integrates independent high-side and low-side drivers capable of sourcing and sinking 3A peak currents. The device operates with a supply voltage range of 9V to 14V and supports bootstrap operation for the high-side driver. It features fast switching characteristics with typical rise and fall times of 10ns. The component is housed in a 10-pin LLP package measuring 4mm x 4mm, designed for surface-mount applications.

Feature Summary

• Integrates independent high-side and low-side drivers for half-bridge configurations
• Provides 3A peak source and sink current capability for rapid MOSFET switching
• Supports high-voltage operation up to 118V bus voltage
• Includes undervoltage lockout protection for reliable startup

Applications

• High-voltage motor control systems
• Industrial power conversion circuits
• Inverter bridge driver stages
• Isolated power supply gate driving

Procurement Notes

Verify the specific suffix designation against the manufacturer's latest datasheet to confirm pinout compatibility and electrical specifications. Ensure the procurement channel provides original packaging documentation to validate authenticity. Cross-reference the part number with official Texas Instruments databases to confirm current production status and availability constraints before finalizing orders.

Selection Notes

Select this component when designing circuits requiring high-current drive for power MOSFETs in high-voltage environments. The 3A output current ensures efficient switching of large gate charges. Consider the 10-pin LLP package for space-constrained layouts. Verify that the input logic levels are compatible with the system microcontroller or controller IC driving the gate signals.

Part Context

The LM5101ASD belongs to the LM5101 family of high-voltage gate drivers from Texas Instruments. This series includes variants with different current capabilities, such as 2A and 1A versions, to suit various power levels. The ASD variant specifically denotes the 3A current rating and the 10-pin LLP package configuration, distinguishing it from other package options like SOIC or WSON within the same functional family.

Replacement Considerations

Compatible substitutes include LM5101ASD/NOPB and LM5101ASDX. These parts share identical electrical characteristics and pinouts. Verify lead-free compliance and tape-and-reel packaging requirements if replacing bulk tube units. Ensure thermal performance matches the application's heat dissipation needs.