The Radiation Hardened ISL74422ARH is a non-inverting, monolithic high-speed MOSFET driver designed to convert a CMOS level input signal into a high current output at voltages up to 18V. Its fast rise times and high current output allow very quick control of even the largest power MOSFETs in high frequency applications. The input of the ISL74422ARH can be directly driven by our HS-1825ARH and IS-1845ASRH PWM devices. The 9A high current output minimizes power losses in MOSFETs by rapidly charging and discharging high gate capacitances. 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 Supply Center in Columbus (DSCC). The SMD numbers listed here must be used when ordering. Detailed Electrical Specifications for these devices are contained in SMD 5962-01521.


  • QML qualified per MIL-PRF-38535 requirements
  • Electrically screened to DSCC SMD # 5962-01521
  • Radiation environment
  • Total dose (Max): 300krad(SI)
  • Latch-up immune
  • IPEAK: 9A(Min)
  • TF (CL = 10,000pF): 70ns(Typ); 90ns(Max)
  • TR (CL = 10,000pF): 90ns(Typ); 105ns(Max)
  • Prop delay high-low (CL = 10,000pF): 75ns(Max), 55ns(Typ)
  • Prop delay low-high (CL = 10,000pF): 50ns(Max), 30ns(Typ)
  • Consistent delay times with VCC changes
  • Wide supply voltage range: 7V to 18V
  • Low standby power consumption
  • Input low: <2mW(Max)
  • Inputs high: <18mW(Max)
  • ESD protected: >1750V


  • 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 5962F0152101QXC
Active CFP Tray 1 5962F0152101VXC
Active 100 5962F0152101V9A

Documentation & Downloads

Title language Type Format File Size Date
Datasheets & Errata
ISL74422ARH Datasheet Datasheet PDF 133 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
ISL74422ARH Total Dose Test Report Report PDF 359 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 5962-01521 (ISL74422ARH) Other 0 KB
ISL74422ARH Neutron Test Report Report PDF 286 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