1 Features

1? Ultra-Low Power

? 3-V Detection

? Input Voltage From 0.8 V to 7 V

? Open-Drain Output

? Ultra-Small 5-Pin SC70 Package

? Extended Temperature Range (–40°C to 85°C)

? Ultra-Low Quiescent Current (1 μA Typical)

2 Applications

? Low Battery Voltage Detectors

? Power Fail Indicators

? Processor Reset Generators

? Battery Backup Controls

? Battery-Operated Equipment

? Hand-Held Instruments

? Undervoltage Detectors

3 Description

The LMS33460 device is an undervoltage detector

with a 3?V threshold and extremely low power

consumption. The LMS33460 is specifically designed

to accurately monitor power supplies. It is especially

suited to battery-powered systems where low

quiescent current and small size are required. This IC

generates an active output whenever the input

voltage drops below 3 V.

This part uses a precision on-chip voltage reference

and a comparator to measure the input voltage. Builtin

hysteresis helps to prevent erratic operation in the

presence of noise. The UVD is available in the ultraminiature

5-pin SC70 package.