AHV85111KNHLU

Isolators - Gate Drivers Overview

The AHV85111KNHLU is a fully integrated high-voltage isolated gate driver with bipolar output, designed for driving GaN FETs. It features a 12-SMD package (10x7.66 mm) and supports 5 kVrms insulation voltage. The device operates within a temperature range of -40°C to +150°C. Key electrical parameters include a maximum propagation delay of 100 ns, rise time of 9 ns, and fall time of 7 ns. Input and supply voltages range from 10.8 V to 13.2 V, with a typical operating supply current of 2 mA.

Isolators - Gate Drivers Feature Summary

• Fully integrated design combining isolation barrier and power supply in a single compact package
• Bipolar output configuration optimized for efficient driving of high-frequency GaN FETs
• Eliminates the need for external bootstrap circuits or separate isolated auxiliary bias supplies

Isolators - Gate Drivers Applications

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

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'LU' against the manufacturer's official datasheet to confirm pinout and tape-and-reel specifications. Ensure compatibility with moisture sensitivity levels and reflow soldering profiles defined in the component documentation. Cross-reference ordering information directly with Allegro MicroSystems authorized distributors to avoid counterfeit components.

Isolators - Gate Drivers Selection Notes

Select this component for applications requiring high-frequency switching with minimal PCB space. The integrated power supply feature simplifies bill of materials by removing external bootstrap diodes and capacitors. Verify that the 5 kVrms isolation rating meets system safety requirements and that the bipolar output aligns with the target GaN FET drive topology.

Isolators - Gate Drivers Part Context

Part of the AHV85111 series, which includes variants like the AHV85110. This series represents Allegro's high-voltage power portfolio focused on galvanically isolated drivers. The family targets modern power electronics demanding high efficiency and reduced electromagnetic interference through minimized common-mode capacitance.

Isolators - Gate Drivers Replacement Considerations

Check for direct substitutes within the AHV85111 family, such as AHV85110, ensuring functional equivalence in isolation voltage and output configuration before substitution.