FEATURES

Time of 200 ms (TPS3823/4/5/8)

or 25 ms (TPS3820)

(TPS3820/3/4/5), Active-High (TPS3824/5) and

Open-Drain (TPS3828)

2.5 V, 3 V, 3.3 V, 5 V

APPLICATIONS

Microprocessors

DESCRIPTION

The TPS382x family of supervisors provide circuit

initialization and timing supervision, primarily for DSP

and processor-based systems. During power-on,

higher than 1.1 V. Thereafter, the supply voltage

An internal timer delays the return of the output to the

inactive state (high) to ensure proper system reset. The

active (low) again. No external components are required.

All the devices of this family have a fixed-sense threshold

3

2

4

5

TPS3820, TPS3823, TPS3828: DBV PACKAGE

(TOP VIEW)

1

RESET

GND

MR

VDD

WDI

3

2

4

5

TPS3825: DBV PACKAGE

(TOP VIEW)

1

RESET

GND

RESET

VDD

MR

3

2

4

5

TPS3824: DBV PACKAGE

(TOP VIEW)

1

RESET

GND

RESET

VDD

WDI

RESET

MR

WDI

100 nF

VDD

GND

TPS3823-33

VDD

RESET

I/O

GND

MSP430C325

3.3 V

TYPICAL APPLICATION

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TPS3820-xx, TPS3823-xx,

TPS3824-xx, TPS3825-xx,

TPS3828-xx

SLVS165G − APRIL 1998 − REVISED JANUARY 2008

PROCESSOR SUPERVISORY

CIRCUITS

PRODUCTION DATA information is current as of publication date. Products

conform to specifications per the terms of Texas Instruments standard warranty.

Production processing does not necessarily include testing of all parameters.

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 2001−2007, Texas Instruments Incorporated

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments

semiconductor products and disclaimers thereto appears at the end of this data sheet.

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