LM5101CMAX

Overview

The LM5101CMAX is a half-bridge gate driver manufactured by Texas Instruments, designed for driving N-channel MOSFETs. It operates within a supply voltage range of 9 V to 14 V and supports logic input levels with a minimum high-level voltage of 2.3 V. The device features independent high-side and low-side outputs with a typical output current capability of 1 A. Electrical performance includes a maximum propagation delay of 26 ns, rise time of 990 ns, and fall time of 715 ns. It functions reliably across an extended temperature range from -40°C to +125°C and is housed in an 8-SOIC package.

Feature Summary

• Provides independent high-side and low-side drive channels for N-channel MOSFETs
• Supports non-inverting TTL-compatible logic inputs
• Operates with a wide supply voltage range suitable for various power applications

Applications

• Half-bridge power converter topologies
• High-side and low-side N-channel MOSFET switching control
• General-purpose isolated gate driving in power management systems

Procurement Notes

Verify the complete part number including the suffix 'MAX' to ensure correct packaging and temperature grade. Confirm RoHS compliance status via the manufacturer's official documentation before procurement. Ensure the ordering code matches the specific tape-and-reel or tube configuration required for your assembly process. Cross-reference the datasheet revision to confirm pinout and electrical specifications align with your design requirements.

Selection Notes

Select this component when a 1 A peak drive current is sufficient for the target N-channel MOSFETs. It is appropriate for designs requiring a 9 V to 14 V supply range and independent channel control. Consider alternative variants like the LM5101AMAX or LM5101BMAX if higher drive currents of 3 A or 2 A are needed respectively. Ensure the SOIC-8 package dimensions fit the available PCB footprint constraints.

Part Context

The LM5101C is part of the LM5101 family of half-bridge gate drivers from Texas Instruments. This family offers varying drive strengths, with the 'C' variant providing 1 A output current compared to 2 A or 3 A options in other series members. All variants share similar interface characteristics and operating voltage ranges, differing primarily in their peak source/sink capabilities and associated switching speeds.

Replacement Considerations

LM5101AMAX/NOPB provides 3 A drive current. LM5101BMAX/NOPB provides 2 A drive current. LM5101CMA/NOPB is the tube-packaged equivalent.