MP18021HN-LF-P

Overview

The MP18021HN-LF-P is a high-frequency half-bridge gate driver designed for N-channel MOSFETs, manufactured by Monolithic Power Systems. It operates within a supply voltage range of 9 V to 18 V and supports a VBST voltage up to 100 V. The device features independent control of high-side and low-side channels with a typical propagation delay of 16 ns and matched delay times under 5 ns. It delivers an output current of 2.5 A, achieving rise and fall times of 12 ns and 9 ns respectively when driving a 1 nF load at 12 V. The component functions reliably across an operating temperature range from -40 °C to +125 °C.

Feature Summary

• Integrates bootstrap diodes to minimize external component count
• Provides undervoltage lockout protection for both high-side and low-side drivers
• Features TTL-compatible input logic levels
• Ensures channel synchronization with matched delay times below 5 ns

Applications

• High-frequency power conversion circuits
• Motor drive systems requiring precise timing
• Industrial inverter topologies

Procurement Notes

Verify the specific suffix HN-LF-P against official Monolithic Power Systems documentation to confirm package type and lead-free status. Ensure compatibility with SOIC-EP-8 footprint requirements during PCB layout. Cross-reference datasheet revisions to validate electrical characteristics match design specifications before finalizing procurement orders.

Selection Notes

Select this component for applications requiring isolated half-bridge driving with tight timing matching constraints. Consider the 100 V VBST rating for higher voltage bus applications. Evaluate thermal performance within the SOIC-EP-8 package relative to expected switching frequencies and load currents to ensure operation remains within the specified temperature limits.

Part Context

This part belongs to the MP18021 series of high-speed gate drivers. It shares functional similarities with other MPS half-bridge drivers but is distinguished by its specific pinout, packaging, and electrical parameters optimized for compact designs. The series targets efficient power management solutions where size and switching speed are critical factors.

Replacement Considerations

Consult official substitution lists for direct equivalents. Verify pin-to-pin compatibility and electrical parameter alignment if considering alternative manufacturers or MPS variants.