FEATURES

MONITORS

APPLICATIONS

EQUIPMENT

TEMPERATURE MONITORING

DESCRIPTION

The TMP411 is a remote temperature sensor monitor with

a

built-in

local

temperature

sensor.

The

remote

temperature sensor diode-connected transistors are

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

that

are

an

integral

part

of

microcontrollers,

microprocessors, or FPGAs.

Remote accuracy is

±1°C for multiple IC manufacturers,

with no calibration needed. The Two-Wire serial interface

accepts SMBus write byte, read byte, send byte, and

receive byte commands to program the alarm thresholds

and to read temperature data.

Features that are included in the TMP411 are: series

resistance cancellation, programmable non-ideality factor,

programmable resolution, programmable threshold limits,

minimum and maximum temperature monitors, wide

remote temperature measurement range (up to +150

°C),

diode fault detection, and temperature alert function.

The TMP411 is available in both MSOP-8 and SO-8

(available Q1 2007) packages.

TMP411

SBOS383A − FEBRUARY 2007

±1°C Remote and Local TEMPERATURE SENSOR

with N-Factor and Series Resistance Correction

PRODUCTION DATA information is current as of publication date. Products

conform to specifications per the terms of Texas Instruments standard warranty.

Production processing does not necessarily include testing of all parameters.

www.ti.com

Copyright

 2006−2007, Texas Instruments Incorporated

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.

DLP is a registered trademark of Texas Instruments. SMBus is a trademark of Intel Corp.

All other trademarks are the property of their respective owners.

Device ID Register

Manufacturer ID Register

THERM Hysteresis Register

Consecutive Alert

Configuration Register

T

L

Status Register

Conversion Rate

Register

N−Factor

Correction

D+

1

5

7

8

2

3

Bus Interface

Pointer Register

Resolution Register

Configuration Register

Local Temp Low Limit

Local THERM Limit

Local Temp High Limit

Remote Temp Low Limit

Remote THERM Limit

Remote Temp High Limit

Remote

Temperature

Register

Local

Temperature

Register

Temperature

Comparators

Interrupt

Configuration

SCL

GND

THERM

4

6

ALERT/TH ERM2

V+

V+

SDA

D

−

TMP411

Remote Temperature Min/Max Register

Local Temperature Min/Max Register