LM5101CMYX/NOPB

Overview

The LM5101CMYX/NOPB is a high-voltage half-bridge gate driver designed for driving power MOSFETs and IGBTs in hard-switching applications. It features a wide supply voltage range of 4.5V to 60V, with an independent bootstrap supply capability up to 60V. The device provides peak output currents of 2A source and 4A sink, ensuring fast switching transitions. It includes integrated dead-time control, under-voltage lockout (UVLO) protection, and short-circuit protection to enhance system reliability. The component operates within a temperature range of -40°C to +125°C.

Feature Summary

• Integrated dead-time control minimizes shoot-through current without external timing components
• Robust protection mechanisms include under-voltage lockout and short-circuit fault handling
• High peak drive current capability supports rapid charging and discharging of gate capacitance
• Wide operating supply voltage range accommodates various bus voltage levels

Applications

• Hard-switched DC-DC converters
• Motor control systems
• Industrial power supplies

Procurement Notes

Verify the specific suffix NOPB indicates lead-free and RoHS compliance status according to Texas Instruments documentation. Confirm the package marking and date code align with project requirements. Ensure the ordering part number matches the exact pinout and electrical specifications required for the design. Cross-reference the datasheet revision history for any updates to recommended operating conditions or testing parameters before finalizing procurement.

Selection Notes

Select this component when a dedicated half-bridge driver with built-in dead-time is required to simplify layout and reduce component count. Consider its 60V maximum rating against the application's bus voltage. Evaluate the thermal performance in the chosen YSOP package for the expected power dissipation. Verify that the input logic levels match the controller interface. This driver is suitable for medium-power applications where efficiency and reliability are prioritized over ultra-high frequency operation.

Part Context

The LM5101 belongs to Texas Instruments' family of high-voltage gate drivers. It serves as a bridge between low-voltage control logic and high-voltage power stages. Compared to discrete solutions, it offers integrated protection and timing functions. The CMYX variant specifies the commercial temperature grade and specific packaging. It complements other TI drivers like the LM5109 for more complex multi-phase configurations.

Replacement Considerations

Direct replacements must match the half-bridge topology, voltage ratings, and pinout. Check for equivalent dead-time integration and protection features. Verify thermal characteristics and package dimensions for mechanical compatibility. Consult official substitution lists for guaranteed functional equivalence.