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FEATURES

APPLICATIONS

3

2

4

5

DBV PACKAGE

(TOP VIEW)

1

TPS3123/T

PS3128

RESET

GND

MR

WDI

3

2

4

5

1

TPS3124

RESET

GND

RESET

WDI

3

2

4

5

1

TPS3125/

TPS3126

RESET

GND

RESET

MR

MR

GND

RESET

TPS3123J12

XF

RESET

GND

1.2 V

TMS320UVC5402

WDI

TPS3123-xx

TPS3124-xx, TPS3125-xx

TPS3126-xx, TPS3128-xx

SLVS227B – AUGUST 1999 – REVISED FEBRUARY 2004

ULTRA-LOW VOLTAGE PROCESSOR SUPERVISORY CIRCUITS

•

Minimum Supply Voltage of 0.75 V

•

Supply Voltage Supervision Range:

– 1.2 V, 1.5 V, 1.8 V (TPS312x)

– 3 V (TPS3125 Devices Only)

– Other Versions on Request

•

Power-On Reset Generator With Fixed Delay

Time of 180 ms

•

Manual Reset Input (TPS3123/5/6/8)

•

Watchdog Timer Retriggers the RESET Output

•

Supply Current of 14 µA (Typ)

•

Small SOT23-5 Package

•

Temperature Range of -40

°C to 85°C

•

Reset Output Available in Push-Pull (Active

Low and High) and Open-Drain (Active-Low)

•

Applications Using Low Voltage DSPs,

Microcontrollers, or Microprocessors

•

Portable/Battery-Powered Equipment

•

Wireless Communication Systems

•

Programmable Controls

•

Industrial Equipment

•

Notebook/Desktop Computers

•

Intelligent Instruments

Figure 1. Typical Low-Voltage DSP Application

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.

PRODUCTION DATA information is current as of publication date.

Copyright © 1999–2004, 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.