IS-1845ASRH

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/cm 2 -6 2
- SEU Cross-Section at 89MeV/mg/cm . . . . 5 x 10 cm
* Low Start-up Current . . . . . . . . . . . . . . . . . . .100A (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)




Application

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




Pinout






Description

The IS-1845ASRH is designed to be used in switching power supplies TM 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 IS-1845ASRH are guaranteed and tested for 300krad(Si) total dose performance.

Detailed Electrical Specifications for these devices IS-1845ASRH are contained in SMD 5962-01509. A "hot-link" is provided on our website for downloading the SMD.