LM27222SDX

Overview

The LM27222SDX is a half-bridge gate driver manufactured by Texas Instruments, designed for driving N-channel MOSFETs. It operates within a supply voltage range of 4V to 6.85V and supports a maximum high-side bootstrap voltage of 33V. The device features non-inverting inputs and delivers peak output currents of 3A sink and 4.5A source. Typical rise and fall times are 17ns and 12ns, respectively. It is housed in an 8-WSON (4x4mm) package with a bare pad and functions reliably across a junction temperature range of -40°C to 125°C.

Feature Summary

• Provides synchronous half-bridge drive capability for N-channel MOSFETs
• Features non-inverting input logic for straightforward control integration
• Delivers high peak current drive to ensure fast switching transitions

Applications

• Synchronous buck converter topologies
• High-side and low-side MOSFET gate driving
• Power management integrated circuits requiring isolated or floating gate drive

Procurement Notes

Verify the specific suffix against official documentation, as variations may exist between SD and SDX designations regarding tape-and-reel specifications or minor manufacturing revisions. Confirm RoHS compliance status and moisture sensitivity level prior to procurement to ensure compatibility with assembly processes. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when a compact half-bridge driver with moderate current capability is required for space-constrained designs. The 8-WSON package offers a small footprint suitable for dense PCB layouts. Ensure the application voltage does not exceed the 33V bootstrap limit and that the input logic levels align with the non-inverting configuration requirements of the system architecture.

Part Context

This device belongs to the LM27222 family of gate drivers from Texas Instruments. It is specifically engineered for applications requiring efficient switching of power MOSFETs in power conversion circuits. The family focuses on providing reliable gate drive performance in a minimal outline package, supporting modern power management trends toward higher density and efficiency.

Replacement Considerations

Publicly confirmed substitute part numbers for the LM27222SDX are not available in the provided reference data. Verify functional equivalence with other half-bridge drivers only if official cross-reference lists from Texas Instruments confirm direct compatibility.