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ST1843

Part Number	ST1843
Manufacturer	STMicroelectronics
Description	(ST1843 / ST1845) Rad-tolerant current mode PWM controller
Published	Oct 31, 2012
Detailed Description	ST1843 ST1845 Rad-tolerant current mode PWM controller Features ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ Oscillator frequency guaranteed a...
Datasheet	ST1843 PDF File

Overview

ST1843 ST1845 Rad-tolerant current mode PWM controller 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 at 125°C www.
DataSheet.
net/ Flat-8 Description The ST1843HR and ST1845HR ICs are radtolerant current mode PWM controllers providing an industry standard solution for the implemen...

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