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SUMMARY DESCRIPTION

The STM1061 low power voltage detector provides monitoring of battery, power-supply, and regulated system voltages. A precision voltage reference and comparator monitors the VCC input and compares it with a specified voltage threshold condition. When VCC falls below a specified trip point threshold, the output (OUT) is forced low and remains asserted as long as the VCC input remains below VTH– + hysteresis (VHYST). The STM1061 device is guaranteed to output the correct logic state for VCC down to 0.7V. They are also designed to ignore fast transients on VCC.

This small, low power device is ideal for portable applications and is available in space-saving SOT23-3 and SOT323-3 (SC70-3) packages.

FEATURES

■ FACTORY-TRIMMED VOLTAGE THRESHOLDS IN 0.1V INCREMENTS FROM 1.6V TO 5.5V

■ ±2 VOLTAGE THRESHOLD ACCURACY

■ OPERATING VOLTAGE 0.7V to 6.0V

■ OPEN DRAIN OUTPUT

■ LOW SUPPLY CURRENT - 0.9?A (typ)

■ GUARANTEED OUT ASSERTION DOWN TO VCC = 0.7V

■ POWER SUPPLY TRANSIENT IMMUNITY

■ AVAILABLE IN SOT23-3 and SOT323-3 (SC70-3) PACKAGES

■ OPERATING TEMPERATURE –40°C TO 85°C