3

2

4

5

TPS380x . . . DCKPACKAGE

(TOPVIEW)

1

RESET

GND

MR

GND

3

2

4

5

TPS3801−01 . . . DCKPACKAGE

(TOPVIEW)

1

RESET

GND

SENSE

GND

100nF

TPS3801E18

TMS320VC5420

GND

GND

MR

RESET

RESET

TPS3800-xx

TPS3801-xx

TPS3802-xx

www.ti.com

SLVS219E – AUGUST 1999 – REVISED OCTOBER 2010

ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS

Check for Samples: TPS3800-xx, TPS3801-xx, TPS3802-xx

1

FEATURES

DESCRIPTION

2

•

Small, 5-Pin SC-70 (SOT-323) Package

•

Supply Current of 9 mA

The TPS380x family of supervisory circuits monitor

supply voltages to provide circuit initialization and

•

Power-On Reset Generator With Fixed Delay

timing supervision, primarily for DSPs and other

Time

processor-based systems.

–

TPS3800 = 100 ms

These devices assert a push-pull RESET signal when

–

TPS3801 = 200 ms

–

TPS3802 = 400 ms

drops below a preset threshold. The RESET output

remains asserted for the factory programmed delay

•

Precision Supply Voltage Monitor 1.8 V, 2.5 V,

2.7 V, 3 V, 3.3 V, 5 V, and Adjustable

threshold.

•

Manual Reset Input (Except TPS3801-01)

The TPS380x devices, except the TPS3801-01,

•

Temperature Range: –40°C to +85°C

incorporate a manual reset input (MR). A low level at

MR causes RESET to become active.

APPLICATIONS

The TPS380x uses a precision reference to achieve

•

Applications Using DSPs, Microcontrollers, or

an overall threshold accuracy of 2%—2.5%. These

Microprocessors

devices are available in a 5-pin SC-70 package,

•

Wireless Communication Systems

which is only about half the size of a 5-pin SOT-23

•

Portable/Battery-Powered Equipment

package.

•

Programmable Controls

The TPS380x devices are fully specified over a

•

Intelligent Instruments

temperature range of –40°C to +85°C.

•

Industrial Equipment

•

Notebook/Desktop Computers

•

Automotive Systems

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 © 1999–2010, 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.