The IS-1845ASRH is 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 Intersil’s 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 guaranteed and tested for 300krad(Si) total dose performance.
Detailed Electrical Specifications for these devices are contained in the SMD 5962-01509. A “hot-link” is also provided on our website for downloading the SMD.

FEATUREs
• Electrically Screened to DSCC SMD # 5962-01509
• QML Qualified per MIL-PRF-38535 Requirements
• Radiation Environment
    - Total Dose . . . . . . . . . . . . . . . . . . . . 300 krad(SI) (Max)
    - SEL Immune. . . . . . . . . . . . . . . . . Dielectrically Isolated
    - SEU Immune . . . . . . . . . . . . . . . . . . . . 35MeV/mg/cm2
    - SEU Cross-Section at 89MeV/mg/cm2. . . . 5 x 10-6cm2
• Low Start-up Current . . . . . . . . . . . . . . . . . . . 100µA (Typ)
• Fast Propagation Delay . . . . . . . . . . . . . . . . . . 80ns (Typ)
• Supply Voltage Range . . . . . . . . . . . . . . . . . . . 12V to 20V
• High Output Drive. . . . . . . . . . . . . . . . . . . . 1A (Peak, Typ)
• Under Voltage Lockout. .8.8V Start (Typ), 8.2V Stop (Typ)

APPLICATIONs
• Current-Mode Switching Power Supplies
• Control of High Current FET Drivers
• Motor Speed and Direction Control

Package 8 LD CDIP2-T8 SBDIP
Package 18 LD FLATPACK