TMP400

BurrBrown Products

from Texas Instruments

1

FEATURES

DESCRIPTION

APPLICATIONS

DeviceIDRegister

ManufacturerIDRegister

ConsecutiveAlert

ConfigurationRegister

T

R

T

L

StatusRegister

ConversionRate

Register

N-Factor

Correction

D+

2

7,8

12

14

3

4

BusInterface

PointerRegister

ResolutionRegister

ConfigurationRegister

LocalTempLowLimit

LocalTempHighLimit

RemoteTempLowLimit

RemoteTempHighLimit

Remote

Temperature

Register

Local

Temperature

Register

Temperature

Comparators

Interrupt

Configuration

SCL

GND

11

ALERT

V+

V+

SDA

D-

TMP400

RemoteTemperatureMin/MaxRegister

LocalTemperatureMin/MaxRegister

STBY

A

1

A

0

15

6

10

TMP400

SBOS404 – DECEMBER 2007

±1

°C Remote and Local TEMPERATURE SENSOR

with N-Factor and Series Resistance Correction

234

• ±1°C REMOTE DIODE SENSOR

The TMP400 is a remote temperature sensor monitor

with a built-in local temperature sensor. The remote

• ±1°C LOCAL TEMPERATURE SENSOR

temperature sensor diode-connected transistors are

• PROGRAMMABLE NON-IDEALITY FACTOR

typically low-cost, NPN- or PNP-type transistors or

• PROGRAMMABLE SERIES RESISTANCE

diodes that are an integral part of microcontrollers,

CANCELLATION

microprocessors, or FPGAs.

• ALERT FUNCTION

Remote

accuracy

is

±1

°C

for

multiple

IC

• PROGRAMMABLE RESOLUTION: 9 to 12 Bits

manufacturers, with no calibration needed. The

Two-Wire serial interface accepts SMBus write byte,

• PROGRAMMABLE THRESHOLD LIMITS

read byte, send byte, and receive byte commands to

• TWO-WIRE/SMBus™ SERIAL INTERFACE

program

the

alarm

thresholds

and

to

read

• MINIMUM AND MAXIMUM TEMPERATURE

temperature data.

MONITORS

The TMP400 is customizable with programmable:

• MULTIPLE INTERFACE ADDRESSES

series resistance cancellation, non-ideality factor,

• ALERT PIN CONFIGURATION

resolution, and threshold limits. Other features are:

minimum and maximum temperature monitors, wide

• DIODE FAULT DETECTION

remote temperature measurement range (up to

+127.9375

°C), diode fault detection, and temperature

alert function.

The TMP400 is available in a QSSOP-16 package.

• SERVERS

• INDUSTRIAL CONTROLLERS

• CENTRAL OFFICE TELECOM EQUIPMENT

• DESKTOP AND NOTEBOOK COMPUTERS

• STORAGE AREA NETWORKS (SAN)

• INDUSTRIAL AND MEDICAL EQUIPMENT

• PROCESSOR/FPGA TEMPERATURE

MONITORING

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

DLP is a registered trademark of Texas Instruments.

3

SMBus is a trademark of Intel Corp.

4

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 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.