STM1831 datasheet(1/24 Pages) STMICROELECTRONICS

Part #	STM1831

Description	Voltage detector with sense input and external delay capacitor

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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1 / 24 page

November 2010

Doc ID 18180 Rev 1

1/24

1

STM1831

Voltage detector with sense input

and external delay capacitor

Features

■ Voltage monitored on separate sense

input VSEN

■ Factory-trimmed voltage thresholds in 100 mV

increments from 1.6 V to 5.7 V

■ ±2% voltage threshold accuracy

■ Operating voltage 1.6 V to 6.0 V

■ Open drain output

■ Low supply current of 0.8 µA (typ.)

■ Time delay programmable by external

capacitor

■ Power supply transient immunity

■ Available in SOT23-5 package

■ Operating temperature –40 to 85 °C

Applications

■ Microprocessor reset circuitry

■ Charge voltage monitors

■ Memory battery backup switch circuits

■ Power failure detection circuits

SOT23-5

www.st.com

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