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LM95233CISD Datasheet(PDF) 1 Page - Texas Instruments

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Part # LM95233CISD
Description  Dual Remote Diode and Local Temperature Sensor with SMBus Interface and TruTherm??Technology
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LM95233CISD Datasheet(HTML) 1 Page - Texas Instruments

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LM95233
www.ti.com
SNIS145E – AUGUST 2006 – REVISED MARCH 2013
LM95233 Dual Remote Diode and Local Temperature Sensor with SMBus Interface and
TruTherm™ Technology
Check for Samples: LM95233
1
FEATURES
KEY SPECIFICATIONS
23
Accurately Senses Die Temperature of 2
Local Temperature Accuracy: ±2.0 °C (max)
Remote ICs or Diode Junctions and Local
Remote Diode Temperature Accuracy: ±0.875
Temperature
°C (max)
TruTherm BJT Beta Compensation Technology
Supply Voltage: 3.0 to 3.6 V
Accurately Senses Sub-Micron Process
Average Supply Current (1Hz conversion rate):
Thermal Diodes
0.57 mA (typ)
0.125°C LSb Temperature Resolution
0.03125°C LSb Remote Temperature
DESCRIPTION
Resolution with Digital Filter Enabled
LM95233 is an 11-bit digital temperature sensor with
a 2-wire System Management Bus (SMBus) interface
+127.875°C/–128°C and 0°C/255°C Remote
that can monitor the temperature of two remote
Ranges
diodes as well as its own temperature. The LM95233
Programmable Digital Filters and Analog Front
can
be
used
to
very
accurately
monitor
the
End Filter
temperature of up to two external devices such as
Remote Diode Fault Detection, Model
microprocessors,
graphics
processors
or
diode-
connected 2N3904s. The LM95233's TruTherm™
Selection and Offset Correction
BJT beta compensation technology allows sensing of
Mask and Status Register Support
90nm or 65nm process thermal diodes accurately.
3 Programmable TCRIT Outputs with
The LM95233 reports temperature in two different
Programmable Shared Hysteresis
formats for +127.875°C/–128°C range and 0°C/255°C
Programmable Conversion Rate and Shutdown
range. The LM95233 TCRIT1, TCRIT2 and TCRIT3
Mode One-Shot Conversion Control
outputs are triggered when any unmasked channel
SMBus 2.0 Compatible Interface, Supports
exceeds its corresponding programmable limit and
can be used to shutdown the system, to turn on the
TIMEOUT
system fans or as a microcontroller interrupt function.
Three-Level Address Pin
The current status of the TCRIT1, TCRIT2 and
14-Pin WSON Package
TCRIT3 pins can be read back from the status
registers. Mask registers are available for further
APPLICATIONS
control of the TCRIT outputs. LM95233's remote
temperature channels have programmable digital
Processor/Computer System Thermal
filters to minimize unwanted TCRIT events when
Management (e.g. Laptop, Desktop,
temperature spikes are encountered.
Workstations, Server)
For optimum flexibility and accuracy each LM95233
Electronic Test Equipment
channel includes, registers for sub-micron process or
Office Electronics
2N3904 diode model selection as well as offset
correction.
A
three
level
address
pin
allows
connection of up to 3 LM95233s to the same SMBus
master.
The
LM95233
includes
power
saving
functions such as: programmable conversion rate,
shutdown mode, and turn off of unused channels.
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
TruTherm is a trademark of Texas Instruments.
3
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2006–2013, 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.


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