LM27222SD

Overview

The LM27222SD/NOPB is a half-bridge gate driver IC designed for driving N-channel MOSFETs. It features a non-inverting input configuration and supports synchronous drive applications. The device operates within a supply voltage range of 4V to 6.85V. Peak output current capabilities include 3A sink and 4.5A source currents. Typical rise and fall times are 17ns and 12ns, respectively. The high-side voltage maximum (bootstrap) is rated at 33V. It is housed in an 8-WSON package with dimensions of 4x4mm and includes a bare pad for thermal dissipation. The component is specified for operation across a junction temperature range of -40°C to 125°C.

Feature Summary

• Half-bridge driver configuration optimized for synchronous N-channel MOSFET control
• High peak output current capability with 4.5A source and 3A sink performance
• Fast switching characteristics with typical rise and fall times of 17ns and 12ns
• Non-inverting input logic interface for straightforward signal integration

Applications

• Synchronous buck converter topologies
• Motor drive circuits requiring half-bridge control
• Power supply designs utilizing N-channel MOSFET switching

Procurement Notes

Verify the specific ordering suffix against official Texas Instruments documentation to ensure correct packaging and RoHS compliance status. Confirm that the requested variant matches the required package type and thermal specifications. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and traceability. Ensure that any alternative sourcing channels provide valid certification documents corresponding to the exact component designation.

Selection Notes

Select this component when a half-bridge driver with high peak current capability is required for N-channel MOSFETs. Consider the 4V to 6.85V supply range compatibility with system logic levels. Evaluate the 8-WSON package size constraints against available PCB real estate. Assess thermal management requirements given the bare pad design and operating temperature range up to 125°C junction temperature.

Part Context

The LM27222 belongs to Texas Instruments' family of power management integrated circuits focused on gate driving solutions. This specific model addresses applications needing robust half-bridge control with fast switching speeds. It complements other drivers in the portfolio by offering a compact WSON form factor suitable for space-constrained designs while maintaining high current drive performance for efficient power stage operation.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the available documentation.