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STM1061

Low Power Voltage Detector

STMicroelectronics 

STM1061

SUMMARY DESCRIPTION

The STM1061 low power voltage detector pro-

vides 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 re-

mains below VTH– + hysteresis (VHYST). The

STM1061 device is guaranteed to output the cor-

rect 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.

Figure 2. Logic Diagram

VCC

STM1061

OUT

Table 1. Signal Names

OUT Open Drain Active-Low Output

VCC

Supply Voltage

VSS

Ground

VSS

AI10477

Figure 3. SOT23-3 Connections

OUT 1

VSS 2

3 VCC

AI10478

Figure 4. SOT323-3 (SC70-3) Connections

VSS 1

OUT 2

3 VCC

AI10479

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