TMP435 Datasheet, PDF (1/33 Pages) Texas Instruments – TEMPERATURE SENSOR

TMP435
TMP435
www.ti.com
SBOS495A – MARCH 2010 – REVISED APRIL 2010
±1°C TEMPERATURE SENSOR with Series-R,
n-Factor, Automatic Beta Compensation and Programmable Addressing
Check for Samples: TMP435
FEATURES
1
•234 ±1°C REMOTE DIODE SENSOR
• ±1°C LOCAL TEMPERATURE SENSOR
• AUTOMATIC BETA COMPENSATION
• n-FACTOR CORRECTION
• PROGRAMMABLE THRESHOLD LIMITS
• TWO-WIRE/ SMBus™ SERIAL INTERFACE
• MINIMUM AND MAXIMUM TEMPERATURE
MONITORS
• MULTIPLE INTERFACE ADDRESSES
• ALERT/THERM2 PIN CONFIGURATION
• DIODE FAULT DETECTION
• PIN-PROGRAMMABLE TWO-WIRE
ADDRESSING
APPLICATIONS
• LCD/ DLP^®/LCOS PROJECTORS
• SERVERS
• INDUSTRIAL CONTROLLERS
• CENTRAL OFFICE TELECOM EQUIPMENT
• DESKTOP AND NOTEBOOK COMPUTERS
• STORAGE AREA NETWORKS (SAN)
• INDUSTRIAL AND MEDICAL EQUIPMENT
• PROCESSOR/FPGA TEMPERATURE
MONITORING
+5V
DESCRIPTION
The TMP435 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.
The TMP435 includes beta compensation
(correction), 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, a temperature alert function,
and pin-programmable two-wire addressing using
3-state logic.
The TMP435 is available in an MSOP-10 package.
TMP435
1
V+
2
DXP
3 _DXN
7
THERM
6
GND
10
SCL
9
SDA
4
A0
5
A1
ALERT/THERM2
8
SMBus
Controller
One Channel Local
One Channel Remote
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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.
2
SMBus is a trademark of Intel Corporation.
3
All other trademarks are the property of their respective owners.
4
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2010, Texas Instruments Incorporated