3.3 V

TPS3809K33

TMS320LC54x

GND

GND

RESET

RESET

VDD

VDD

TPS76333

GND

OUT

IN

5 V

2

3

1

RESET

VDD

GND

TPS3809J25, TPS3809L30

TPS3809K33, TPS3809I50

www.ti.com

SLVS228C – AUGUST 1999 – REVISED OCTOBER 2013

3-Pin Supply Voltage Supervisors

Check for Samples: TPS3809J25, TPS3809L30, TPS3809K33, TPS3809I50

1

FEATURES

DESCRIPTION

The TPS3809 family of supervisory circuits provides

2

•

3-Pin SOT-23 Package

circuit initialization and timing supervision, primarily

•

Supply Current of 9

μA (Typical)

for DSPs and processor-based systems.

•

Precision Supply Voltage Monitor

During power-on, RESET is asserted when the

2.5 V, 3 V, 3.3 V, 5 V

•

Pin-For-Pin Compatible With MAX 809

•

Temperature Range: –40°C to +85°C

return of the output to the inactive state (high) to

APPLICATIONS

•

Applications Using DSPs, Microcontrollers, or

Microprocessors

•

Wireless Communication Systems

active (low) again. No external components are

•

Portable/Battery-Powered Equipment

required. All the devices of this family have a fixed

•

Programmable Controls

divider.

•

Intelligent Instruments

•

Industrial Equipment

The product spectrum is designed for supply voltages

of 2.5 V, 3 V, 3.3 V, and 5 V. The circuits are

•

Notebook/Desktop Computers

available in a 3-pin SOT-23. The TPS3809 devices

•

Automotive Systems

are characterized for operation over a temperature

range of –40°C to 85°C.

DBV PACKAGE

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TYPICAL APPLICATION

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 © 1999–2013, 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.