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General Description

The TC51 is a very low power, open drain output, CMOS voltage detector with built-in delay. It is particularly well-suited for battery powered applications because of its extremely low 1μA operating current and small surface-mount packaging. Each part is lasertrimmed to the desired threshold voltage, which can be specified from 1.6V to 6.0V. The standard built-in output delay is 50msec-200msec.

The device includes a comparator, low-current high-precision reference, laser-programmed voltage divider, hysteresis circuit and output driver with digital delay timer.

Features

? Precise Detection Thresholds: ±2.0

? Small Package: 3-Pin SOT-23A

? Low Supply Current: Typ. 1μA

? Wide Detection Range: 1.6V to 6.0V

? Wide Operating Voltage Range: 0.7V to 10V

? Built-in Delay Circuit: 50msec to 200 msec

? Open-Drain Output

Applications

? Battery Voltage Monitoring

? Microprocessor Reset

? System Brown-out Protection