www.ti.com

FEATURES

DESCRIPTION

APPLICATIONS

(TOPVIEW)

RESET

GND

MR

V

DD

PFI

TPS3103

DBVPACKAGE

PFO

3

2

4

6

1

5

(TOPVIEW)

RSTVDD

GND

MR

V

DD

SENSE

TPS3106

DBVPACKAGE

RSTSENSE

3

2

4

6

1

5

(TOPVIEW)

RESET

GND

MR

V

DD

SENSE

TPS3110

DBVPACKAGE

WDI

3

2

4

6

1

5

TypicalApplicationCircuit

TPS3106K33DBV

V

DD

RSTVDD

RSTSENSE

GND

SENSE

R1

R2

GND

V

CORE

V

IO

RESET

R3

DSP

3.3V

1.6V

GND

MR

TPS3103xxx

TPS3106xxx

TPS3110xxx

SLVS363D – AUGUST 2001 – REVISED NOVEMBER 2006

UltraLow Supply-Current/Supply-Voltage Supervisory Circuits

• Precision Supply Voltage Supervision Range:

The TPS310x and TPS311x families of supervisory

0.9 V, 1.2 V, 1.5 V, 1.6 V, 2 V, and 3.3 V

circuits

provide

circuit

initialization

and

timing

supervision, primarily for DSP and processor-based

• High Trip-Point Accuracy: 0.75%

systems.

• Supply Current of 1.2 µA (typical)

During power-on, RESET is asserted when the

• RESET Defined With Input Voltages as Low as

0.4 V

• Power-On Reset Generator With a Delay Time

of 130 ms

timer delays the return of the output to the inactive

• Push/Pull or Open-Drain RESET Outputs

state to ensure proper system reset. The delay time

• SOT23-6 Package

• Package Temperature Range: –40°C to +85°C

All the devices of this family have a fixed-sense

• Applications Using Low-Power DSPs,

divider.

Microcontrollers, or Microprocessors

The TPS3103 and TPS3106 have an active-low,

• Portable- and Battery-Powered Equipment

open-drain RESET output. The TPS3110 has an

• Intelligent Instruments

active-low push/pull RESET.

• Wireless Communication Systems

The

product

spectrum

is

designed

for

supply

• Industrial Equipment

voltages of 0.9 V up to 3.3 V. The circuits are

• Notebook/Desktop Computers

available in SOT23-6 packages. The TPS31xx family

is characterized for operation over a temperature

range of –40

°C to +85°C.

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.

PRODUCTION DATA information is current as of publication date.

Copyright © 2001–2006, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.