1/11

12

µA maximum

4.33V typ. FOR TS831-5

4.50V typ. FOR TS831-4

2.71V typ. FOR TS831-3

µs FOR A 10mV

OVERDRIVE

AND MC33164

DESCRIPTION

The TS831 is an ultra low power integrated circuit

incorporating a high stability band-gap voltage

reference and a comparator with an open drain

output.

The threshold voltage is set at 4.33V for TS831-5,

4.5V for TS831-4 and 2.71V for TS831-3 by

internal thermally matched resistors.

The comparator exhibits a 20

µs response (with

10mV overdrive) and has an open drain output

active when input voltage is lower than the

threshold. An internal hysteresis, 100mV for

TS831-4 / TS831-5 and 60mV for TS831-3,

increases the comparator’s noise margin and

prevents false reset operation.

APPLICATION

ORDER CODE

Z= TO92 Plastic package

D = Small Outline Package (SO) - also available in Tape & Reel (DT)

P = Thin Shrink Small Outline Package (TSSOP) - only available

in Tape & Reel (PT)

PIN CONNECTIONS (top view)

Part Number

Temperature Range

Package

DZ

P

TS831-5I

-40, +125°C

••

•

TS831-4I

••

•

TS831-3I

••

•

D

SO8

(Plastic Micropackage)

P

TSSOP8

(Thin Shrink Small Outline Package)

Z

TO92

(Plastic Package)

TO92

SO8-TSSOP8

TS831

MICROPOWER VOLTAGE SUPERVISOR

RESET ACTIVE LOW

November 2001