AHV85110KNHTR

Gate Driver Overview

The AHV85110KNHTR is a fully integrated, current-isolated gate driver with unipolar output designed for driving GaN FETs. It features a single channel in an SMT-12 package. Key electrical parameters include a maximum propagation delay of 100 ns (typical 50 ns), rise time of 9 ns, and fall time of 7 ns. The device operates within a supply voltage range of 10.5 V to 13.2 V and provides 5 kVrms isolation. It supports a junction temperature range from -40°C to +150°C and has a typical operating supply current of 450 µA.

Gate Driver Feature Summary

• Integrates isolated gate driver and power supply in a single compact package, eliminating the need for external auxiliary bias or high-side bootstrap circuits.
• Utilizes magnetic coupling technology to provide galvanic isolation, minimizing common-mode capacitance to reduce EMI filter design complexity.
• Optimized for high-frequency designs with fast propagation delay and peak source/sink current capabilities suitable for GaN FETs.

Gate Driver Applications

• AC-DC and DC-DC converters
• Electric vehicle (EV) chargers and onboard chargers (OBC)
• Data center power supplies
• Microinverters and string inverters

Gate Driver Procurement Notes

Verify the specific suffix KNHTR against the manufacturer's official datasheet to confirm pinout and packaging details. Ensure compatibility with AEC-Q100 automotive grade requirements if used in automotive applications. Confirm moisture sensitivity level (MSL 3) handling procedures during assembly. Cross-reference the 12-SMD (10x7.66) footprint dimensions with your PCB layout guidelines to ensure accurate placement.

Gate Driver Selection Notes

Select this component when designing systems requiring high power density and simplified topology for wide-bandgap semiconductors. It is suitable for applications where reducing PCB area by approximately 50% compared to discrete solutions is critical. Consider its integration of the isolated power supply to minimize bill of materials and system complexity. Evaluate its performance in topologies requiring unipolar output drive signals for efficient switching control.

Gate Driver Part Context

The AHV85110KNHTR belongs to Allegro MicroSystems' Power-Thru series, representing the first product utilizing this technology to combine isolation and drive functions. It is part of the AHV85110 family, which includes evaluation boards like the APEK85110KNH-01-T for development purposes. This series targets high-efficiency power conversion markets, leveraging proprietary magnetic coupling techniques developed through previous acquisitions.

Gate Driver Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Allegro MicroSystems directly for qualified alternatives or cross-reference options based on specific isolation voltage and current drive requirements.