TPS31xxExx, TPS31xxH20, TPS31xxK33

ULTRALOW SUPPLY CURRENT/SUPPLY VOLTAGE SUPERVISORY CIRCUITS

SLVS363B − AUGUST 2001 − REVISED SEPTEMBER 2004

www.ti.com

1

features

Range: 0.9 V, 1.2 V, 1.5 V, 1.6 V,

2 V, 3.3 V

as 0.4 V

Time of 130 ms

typical applications

Microcontrollers or Microprocessors

description

The TPS310x, TPS311x families of supervisory

circuits provide circuit initialization and timing

supervision, primarily for DSP and processor-

based systems.

During power on, RESET is asserted when the

and keeps the RESET output active as long as

internal timer delays the return of the output to the

inactive state to ensure proper system reset. The

becomes active again.

Copyright

 2001 − 2004 Texas Instruments Incorporated

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.

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.

All trademarks are the property of their respective owners.

(TOP VIEW)

RESET

GND

MR

PFI

TPS3103

DBV PACKAGE

PFO

(TOP VIEW)

RSTVDD

GND

MR

SENSE

TPS3106

DBV PACKAGE

RSTSENSE

(TOP VIEW)

RESET

GND

MR

SENSE

TPS3110

DBV PACKAGE

WDI

TPS3106E33DBV

VDD

RSTVDD

RSTSENSE

GND

SENSE

R1

R2

GND

Vcore

VIO

RESET

R3

DSP

3.3 V

1.6 V

GND

typical application circuit

3

2

4

6

1

5

3

2

4

6

1

5

3

2

4

6

1

5

MR