LM5102SD/NOPB

Overview

The LM5102SD/NOPB is a high-voltage half-bridge gate driver from Texas Instruments, designed for driving N-channel power MOSFETs in demanding applications. It features a wide supply voltage range of 9V to 14V and supports bootstrap operation up to 118V. The device provides symmetrical peak output currents of 1.6A for both sourcing and sinking. It incorporates programmable delay control to manage dead-time precisely, reducing cross-conduction risks. Operating reliably across an extended temperature range from -40°C to +125°C, it utilizes a compact 10-VSSOP surface-mount package suitable for space-constrained designs.

Feature Summary

• High-voltage half-bridge configuration supporting bootstrap voltages up to 118V
• Symmetrical 1.6A peak source and sink current capability
• Programmable delay control for precise dead-time management
• Extended industrial operating temperature range

Applications

• Motor drive systems requiring isolated gate control
• Industrial power conversion circuits
• Inverter topologies with high-side switching requirements

Procurement Notes

Verify the specific suffix designation against the manufacturer's latest documentation to ensure compliance with RoHS standards and lead-free processing requirements. Confirm that the 10-VSSOP package dimensions align with your PCB footprint constraints. Check for any recent product lifecycle notifications or obsolescence warnings directly from Texas Instruments before finalizing procurement plans.

Selection Notes

Select this component when a dedicated half-bridge driver with adjustable timing is required for high-side N-channel MOSFETs. Ensure the application voltage does not exceed the 118V bootstrap limit. Consider thermal dissipation capabilities within the VSSOP package if continuous high-current switching is anticipated. Validate input logic levels against the specified VIL and VIH thresholds for reliable interface compatibility.

Part Context

This part belongs to the LM5102 family of high-voltage gate drivers, originally developed by National Semiconductor and continued under Texas Instruments after acquisition. The 'NOPB' suffix indicates a non-lead-based packaging option compliant with environmental regulations. It serves as a specialized solution for bridging low-voltage control logic with high-voltage power stages in robust industrial environments.

Replacement Considerations

LM5102MM/NOPB is a direct equivalent offering identical functionality in a different 10-TFSOP/MSOP package format. Verify pinout compatibility and thermal performance differences between the VSSOP and TFSOP packages before substitution.