TMP411_13 Datasheet, PDF (1/32 Pages) Texas Instruments – ±1°C Remote and Local TEMPERATURE SENSOR with N-Factor and Series Resistance Correction

TMP411
SBOS383C − DECEMBER 2006 − REVISED MAY 2008
±1°C Remote and Local TEMPERATURE SENSOR
with N-Factor and Series Resistance Correction
FEATURES
D ±1°C REMOTE DIODE SENSOR
D ±1°C LOCAL TEMPERATURE SENSOR
D PROGRAMMABLE NON-IDEALITY FACTOR
D SERIES RESISTANCE CANCELLATION
D ALERT FUNCTION
D PROGRAMMABLE RESOLUTION: 9 to 12 Bits
D PROGRAMMABLE THRESHOLD LIMITS
D TWO-WIRE/SMBus  SERIAL INTERFACE
D MINIMUM AND MAXIMUM TEMPERATURE
MONITORS
D MULTIPLE INTERFACE ADDRESSES
D ALERT/THERM2 PIN CONFIGURATION
D DIODE FAULT DETECTION
APPLICATIONS
D LCD/DLP/LCOS PROJECTORS
D SERVERS
D INDUSTRIAL CONTROLLERS
D CENTRAL OFFICE TELECOM EQUIPMENT
D DESKTOP AND NOTEBOOK COMPUTERS
1
V+
D STORAGE AREA NETWORKS (SAN)
5
GND
D INDUSTRIAL AND MEDICAL
EQUIPMENT
D PROCESSOR/FPGA
TEMPERATURE MONITORING
D+ 2
3
D−
8
SCL
7
SDA
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
packages.
V+
TMP411
N−Factor
Correction
One−Shot
Register
Local
Temperature
Register
Conversion Rate
Register
Remote
Temperature
Register
Interrupt
Configuration
Consecutive Alert
Configuration Register
Status Register
Remote Temp High Limit
Remote THERM Limit
Remote Temp Low Limit
T_L
THERM Hysteresis Register
Local Temp High Limit
Temperature
Comparators
T_R
Local THERM Limit
Local Temp Low Limit
Local Temperature Min/Max Register
Remote Temperature Min/Max Register
Manufacturer ID Register
Device ID Register
Configuration Register
Resolution Register
Bus Interface
Pointer Register
4 _THERM
6 _ALERT/THERM2
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.
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.
Copyright  2006−2008, Texas Instruments Incorporated
www.ti.com