AHV85111: Self-Powered Single-Channel Isolated GaNFET Gate Driver with Regulated Bipolar Output Drive

Self-Powered Single-Channel Isolated GaNFET Gate Driver with Regulated Bipolar Output Drive

Description

Top Features

Typical Applications

Packaging

The AHV85111 isolated gate driver is optimized for driving GaN FETs in multiple applications. An isolated dual positive/ negative output bias supply is integrated into the driver device, eliminating external gate drive auxiliary bias supply or high-side bootstrap. The bipolar output rails with adjustable and regulated positive rail improves dv/dt immunity, greatly simplifies the system design, and reduces EMI through reduced total common mode (CM) capacitance. It also allows the driving of a floating switch in any location in a switching power topology.
  • Power-Thru integrated isolated bias
    • No high-side bootstrap or external secondary-side bias
  • Bipolar drive output, with adjustable regulated positive rail
  • Regulated 3.3 V low power bias output
  • 50 ns propagation delay, with excellent device-to-device
    matching of 5 ns
  • Separate drive output pins: pull-up (2.8 Ω) and pull-down (1.0 Ω)
  • AC-DC and DC-DC converters – totem-pole PFC, Half-/Full-Bridge, LLC, SR Drive, multi-level converters, phase-shifted full-bridge, etc.
  • Automotive – OBC, Traction Drive
  • Industrial – Transportation, Robotics
  • Grid Infrastructure – Micro-Inverters, solar
Self-Powered Single-Channel Isolated GaNFET Gate Driver with Regulated Bipolar Output Drive

The device is available in a compact low-profile surface-mount NH package. Several protection features are integrated, including undervoltage lockout on primary and secondary bias rails, internal pull-down on IN pin and OUTPD pin, fast response enable input, overtemperature shutdown, and OUT pulse synchronization with first IN rising edge after enable (avoids asynchronous runt pulses).

Part Number Specifications and Availability

HV Isolated Gate drivers

Part Number Switch #channels Polarity Working Voltage Isolation Qualification Tape&Real Datasheet Samples
AHV85111KNHTR Switch GaN 1 Unipolar Working Voltage630 Isolation5kV AEC-Q100, grade 2 13", 1500 pcs Datasheetdownload Samplescontact our sales team
AHV85111KNHLU Switch GaN 1 Unipolar Working Voltage630 Isolation5kV   13", 200 pcs Datasheetdownload Samplescontact our sales team

 

HV Isolated Evaluation Boards

EVK PN Switch Supplier / PN Description Gate driver used Check free sample eligibility
EVK nameAPEK85111KNH-01-T-MH SwitchGaN Supplier / PNGaN Systems GS66516B DescriptionHalf-bridge bipolar driver-switch board Gate driver usedAHV85111 Samplescontact our sales team
EVK nameAPEK85111KNH-02-T-MH SwitchE-Mode GaN Supplier / PNGaN Systems GS66508B DescriptionHalf-bridge bipolar driver-switch board Gate driver usedAHV85111 Samplescontact our sales team