The radiation hardened HS-1825ARH, HS-1825AEH pulse width modulator is designed to be used in high-frequency switched-mode power supplies and can be used in either current-mode or voltage-mode. It is well suited for single-ended boost converter applications. Device features include a precision voltage reference, low power start-up circuit, high-frequency oscillator, wide-band error amplifier and fast current-limit comparator. The use of proprietary process capabilities and unique design techniques results in fast propagation delay times and high output current over a wide range of output voltages. Constructed with the Intersil radiation hardened Silicon Gate (RSG) Dielectric Isolation BiCMOS process, the HS-1825ARH, HS-1825AEH have been specifically designed to provide highly reliable performance when exposed to harsh radiation environments.


  • Electrically screened to DLA SMD # 5962-99558
  • QML qualified per MIL-PRF-38535 Requirements
  • Radiation environment
  • Maximum total dose: 300 krad(SI)
  • Vertical architecture provides low dose rate immunity
  • DI RSG process provides latch-up immunity
  • Low start-up current: 100µA (Typical)
  • Fast propagation delay: 80ns (Typical)
  • 12V to 30V operation
  • 1A (peak) dual output drive capability
  • 5.1V reference
  • Undervoltage lockout
  • Programmable soft-start
  • Switching frequencies to 500kHz
  • Latched overcurrent comparator with full cycle restart
  • Programmable leading edge blanking circuit


  • Current or voltage mode switching power supplies
  • Motor speed and direction control

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ DLA SMD Buy Sample
Active 100 5962F9955801V9A
Active SBDIP Tube 1
Active SBDIP Tube 1 5962F9955801QEC
Active SBDIP Tube 1 5962F9955801VEC
Active CFP Tray 1
Active CFP Tray 1 5962F9955801QXC
Active CFP Tray 1 5962F9955801VXC

Documentation & Downloads

Title language Type Format File Size Date
Datasheets & Errata
HS-1825ARH, HS-1825AEH Datasheet Datasheet PDF 546 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
IS-1825ASRH iSim:PE Model Schematic SXSCH 254 KB
PIN19011 - Price Increase for the Listed Renesas Electronics America (REA) Radiation Hardened Space Products Price Increase Notice PDF 360 KB
Standard Microcircuit Drawing 5962-99558 (HS-1825AEH, HS-1825ARH) Other 0 KB
IS-1825ASRH SEE Test Report Report PDF 666 KB
PA16075 - Correction to Standard Microcircuit Drawing 5962-99558 for Intersil Products HS0-1825A* Product Advisory PDF 211 KB
Intersil Commercial Lab Services Brochure PDF 364 KB
HS-1825ARH Neutron Test Report Report PDF 420 KB
PA11003 - Packing Method Change for Intersil TO-xx Metal Can and Flat Pack Packaged Products Product Advisory PDF 499 KB
HS-1825AEH Total Dose Testing Report PDF 2.21 MB
TB392: Disabling the Outputs of the HS-1825ARH Other PDF 141 KB

News & Additional Resources