STM1831

Description

Doc ID 18180 Rev 1

5/24

1

Description

The STM1831 is a voltage detector with very low current consumption. It monitors a voltage

on a separate input pin (VSEN), which is fully functional even if the monitored voltage goes

down to 0 V. In addition, the delay of the output can be adjusted by an external capacitor.

Figure 1.

Logic diagram

.

Figure 2.

SOT23-5 pin connections (top view)

Table 1.

Pin descriptions

Pin

Type

Name

Function

1

Output open drain

RST

Active-low reset output

2Power

VSS

Ground

3Power

VCC

Supply voltage

4

Input

VSEN

Sense voltage

5I/O

CD

Delay capacitor

STM1831

RST

VSS

CD

VCC

VSEN

AM00700

1

2

34

CD

VSEN

VCC

VSS

RST

5

AM00852