1

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

SLVS363E – AUGUST 2001 – REVISED SEPTEMBER 2007

www.ti.com

UltraLow Supply-Current/Supply-Voltage Supervisory Circuits

2

• Precision Supply Voltage Supervision Range:

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

The TPS310x and TPS311x families of supervisory

circuits

provide

circuit

initialization

and

timing

• High Trip-Point Accuracy: 0.75%

supervision, primarily for DSP and processor-based

• Supply Current of 1.2 μA (typical)

systems.

• RESET Defined With Input Voltages as Low as

During power-on, RESET is asserted when the

0.4 V

• Power-On Reset Generator With a Delay Time

of 130 ms

• Push/Pull or Open-Drain RESET Outputs

timer delays the return of the output to the inactive

• SOT23-6 Package

state to ensure proper system reset. The delay time

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

All the devices of this family have a fixed-sense

• Applications Using Low-Power DSPs,

Microcontrollers, or Microprocessors

divider.

• Portable- and Battery-Powered Equipment

The TPS3103 and TPS3106 have an active-low,

• Intelligent Instruments

open-drain RESET output. The TPS3110 has an

• Wireless Communication Systems

active-low push/pull RESET.

• Industrial Equipment

The product spectrum is designed for supply voltages

• Notebook/Desktop Computers

of 0.9 V up to 3.3 V. The circuits are available in

SOT23-6

packages.

The

TPS31xx

family

is

characterized for operation over a temperature range

of –40

°C to +85°C.

1

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.

2

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2001–2007, 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.