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Overview

Description

The ISL71441SLH is a radiation hardened PWM input 12V half-bridge GaN FET driver that drives low rDS(ON) Gallium Nitride (GaN) FETs for DC/DC switching regulators. An integrated programmable GaN FET gate drive voltage, high-side bootstrap switch, and strong gate drive current provide a compact and robust GaN FET half-bridge driver.

The ISL71441SLH can interface directly to the ISL73847SLH dual-phase PWM buck controller to create a high-efficiency point-of-load regulator to power many of the latest low-voltage high-current FPGA and DSP digital core rails.

Features

  • Qualified to Renesas Rad Hard Plastic Production and QCI Flow (R34ZZ0006EU)
    • All screening and QCI is in accordance with SAE AS6294/1
  • Up to 20V bootstrap voltage half-bridge driver
  • Programmable 4.5V to 5.5V gate drive voltage
  • Single tri-level PWM input control
  • Separate source and sink driver outputs
  • High-side peak drive: 2A Sourcing, 4A Sinking
  • Low-side peak drive: 4A Sourcing, 8A Sinking
  • High and low-side programmable dead time control
  • Highly matched fast propagation delay: 29ns
  • Full military temperature operation: TA = -55°C to 125°C ambient range
  • 20Ld plastic 5x5mm QFN package
  • TID Rad Hard Assurance (RHA) testing
    • LDR (0.01rad(Si)/s): 75krad(Si)
  • SEE characterization
    • No DSEE with VDD = 20V, PHS = 13.5V, PVCC = 6.5V, and AVCC = 6.3V at LET = 86MeV•cm2/mg
    • SEFI <10µm2 at LET = 86MeV•cm2/mg
  • No half bridge shoot-through SET at LET = 86MeV•cm2/mg

Comparison

Applications

  • High-current DC/DC Point-of-Load (POL) for FPGA and DSP supply rails
  • 5V or 12V input to 1V output POL regulation
  • GaN FET motor driver
  • Combine with ISL73847SLH DC/DC PWM controller and Renesas GaN FETs for a complete DC/DC solution

Documentation

Type Title Date
Datasheet PDF 1.43 MB
Report PDF 5.95 MB
Report PDF 567 KB
Brochure PDF 5.02 MB
Technical Brief PDF 229 KB
White Paper PDF 533 KB
6 items

Design & Development

Software & Tools

Software Downloads

Type Title Date
Software & Tools - Other XLSX 338 KB
Software & Tools - Other XLSX 308 KB
Software & Tools - Other XLSX 742 KB
3 items

Boards & Kits

Models

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

Diagram of ECAD Models