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

STMicroelectronics

ST1843 Datasheet Preview — Preview of ST1843 PDF

Datasheet Details

Part number	ST1843
Manufacturer	STMicroelectronics ↗
File Size	596.88 KB
Description	(ST1843 / ST1845) Rad-tolerant current mode PWM controller
Datasheet	ST1843_STMicroelectronics.pdf

ST1843 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 |