ST1845 - (ST1843 / ST1845) Rad-tolerant current mode PWM controller

Product Overview

STMicroelectronics

Datasheet Details

Part number	ST1845
Manufacturer	STMicroelectronics
File Size	596.88 KB
Description	(ST1843 / ST1845) Rad-tolerant current mode PWM controller
Datasheet	ST1845 Datasheet
Note	This datasheet PDF includes multiple part numbers: ST1845, ST1843. Please refer to the document for exact specifications by model.
Additional preview pages of the ST1845 datasheet.

Product details

Description

The ST1843HR and ST1845HR ICs are radtolerant current mode PWM controllers providing an industry standard solution for the implementation of provides the off-line or DC to DC fixed frequency current mode control schemes with a minimal external parts count.

Features

Oscillator frequency guaranteed at 250 kHz Trimmed oscillator for precise frequency control Current mode operation to 500 kHz automatic feed forward compensation Latching PWM for cycle-by-cycle current limiting Internally trimmed reference with undervoltage lockout High current totem pole output Undervoltage lockout with hysteresis Low start-up and operating current Hermetic package 50 and 100 krad (Si) SEL free @ 120 MeV/cm2/mg.

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Published: Oct 31, 2012 |