The IS-1845ASRH, IS-1845ASEH are designed to be used in switching power supplies operating in current-mode. The rising edge of the on-chip oscillator turns on the output. Turn-off is controlled by the current sense comparator and occurs when the sensed current reaches a peak controlled by the error amplifier. Constructed with Renesas' Rad Hard Silicon Gate (RSG) dielectrically isolated BiCMOS process, these devices are immune to single event latch-up and have been specifically designed to provide a high level of immunity to single event transients. All specified parameters are ensured and tested for 300krad(Si) total dose performance at a high dose rate and 50krad(Si) total dose at a low dose rate. Detailed Electrical Specifications for these devices are contained in the SMD 5962-01509.


  • Electrically screened to DSCC SMD # 5962-01509
  • QML qualified per MIL-PRF-38535 requirements
  • Radiation environment
    • High Dose Rate: 300krad(SI) (Max)
    • Low Dose Rate: 50krad(SI) (Max)
    • SEL immune: Dielectrically isolated
    • SEU immune: 35MeV/mg/cm2
    • SEU cross-section at 89MeV/mg/cm2: 5x10-6cm2
  • Low start-up current: 100µA (Typ)
  • Fast propagation delay: 80ns (Typ)
  • Supply voltage range: 12V to 20V
  • High output drive: 1A (Peak, Typ)
  • Undervoltage lockout: 8.8V start (Typ), 8.2V stop (Typ)


  • Current-mode switching power supplies
  • Control of high current FET drivers
  • Motor speed and direction control

Product Options

Part Number Part Status Pkg. Type Carrier Type DLA SMD Buy Sample
Active SBDIP Tray
Active SBDIP Tray 5962F0150901QPC
Active SBDIP Tray 5962F0150901VPC
Active CFP Tray
Active CFP Tray 5962F0150901QXC
Active CFP Tray 5962F0150901VXC

Documentation & Downloads

Title language Type Format File Size Date
Datasheets & Errata
IS-1845ASRH, IS-1845ASEH 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 5962-01509 (IS-1845ASEH, IS-1845ASRH) Other 0 KB
IS-1845ASRH Neutron Test Report Report PDF 329 KB
Intersil Commercial Lab Services Brochure PDF 364 KB
PA11095 - Packing Method Change for Intersil 8-pin Ceramic Solder Seal Dual-In-Line (SBDIP) Packaged Products Product Advisory PDF 176 KB
IS-1845ASRH Total Dose Test Report Report PDF 370 KB
PA11003 - Packing Method Change for Intersil TO-xx Metal Can and Flat Pack Packaged Products Product Advisory PDF 499 KB
IS-1845ASRH SEE Test Report Report PDF 118 KB
TB393: Disabling the Output of the IS-1845ASRH Other PDF 141 KB

News & Additional Resources