The radiation hardened ISL74422BRH is a non-inverting, monolithic high-speed MOSFET driver designed to convert a 5V CMOS logic input signal into a high current output at voltages up to 18V. Its fast rise/fall times and high current output allow very quick control of even the largest power MOSFETs in high-frequency applications. The input of the ISL74422BRH can be directly driven by our IS-1825ASRH and IS-1845ASRH PWM devices. The 9A high current output minimizes power losses in MOSFETs by rapidly charging and discharging large gate capacitances. A supply UVLO (Under Voltage Lock Out) circuit ensures predictable turn-on and turn-off of the driver. Constructed with the Intersil dielectrically isolated Rad-Hard Silicon Gate (RSG) BiCMOS process, these devices are immune to single event latch-up and have been specifically designed to provide highly reliable performance in harsh radiation environments. Specifications for Rad Hard QML devices are controlled by the Defense Logistics Agency Land and Maritime (DLA). The SMD numbers listed here must be used when ordering. Detailed Electrical Specifications for these devices are contained in SMD 5962-03248.


  • QML qualified per MIL-PRF-38535 requirements
  • Electrically screened to DSCC SMD # 5962-03248
  • Radiation environment
  • Total dose (Max) 300krad(SI)
  • Latch-up immune
  • IPEAK 9A (Min)
  • TFALL (CL = 10nF) 135ns (Max)
  • TRISE (CL = 10nF) 135ns (Max)
  • Prop delay high-low (CL = 10nF) 175ns (Max)
  • Prop delay low-high (CL = 10nF) 175ns (Max)
  • Rising UVLO threshold 7.5V (Max)
  • Falling UVLO threshold 6.0V (Min)
  • UVLO hysteresis 0.3V (Min)
  • Wide supply voltage range 8V to 18V
  • Low standby current consumption
  • Input low 2.1mA (Max)
  • Input high 2.7mA (Max)


  • Switching power supplies
  • DC/DC converters
  • Motor controllers

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ DLA SMD Buy Sample
Active CFP Tray 1
Active CFP Tray 1 5962F0324801QXC
Active CFP Tray 1 5962F0324801VXC
Active 100 5962F0324801V9A

Documentation & Downloads

Title language Type Format File Size Date
Datasheets & Errata
ISL74422BRH Datasheet Datasheet PDF 201 KB
Application Notes & White Papers
Wafer by Wafer Low Dose Rate Acceptance White Paper White Paper PDF 533 KB
AN9867: End of Life Derating: A Necessity or Overkill Application Note PDF 338 KB
PCN10123 - Alternate Die Attach Material for Assembly of Intersil Hermetic Packaged Products - Intersil Palm Bay, FL. (ISP) Product Change Notice PDF 230 KB
Intersil Space Products Brochure Brochure PDF 3.14 MB
PIN19011 - Price Increase for the Listed Renesas Electronics America (REA) Radiation Hardened Space Products Price Increase Notice PDF 360 KB
Standard Microcircuit Drawing 5962-03248 (ISL74422BRH) Other 0 KB
Intersil Commercial Lab Services Brochure PDF 364 KB
PA11003 - Packing Method Change for Intersil TO-xx Metal Can and Flat Pack Packaged Products Product Advisory PDF 499 KB

News & Additional Resources