Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

LM95233 Datasheet(PDF) 1 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Part No. LM95233
Description  Dual Remote Diode and Local Temperature Sensor with SMBus Interface, TCRITs and TruTherm™ Technology
Download  5 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
Logo 

LM95233 Datasheet(HTML) 1 Page - National Semiconductor (TI)

   
Zoom Inzoom in Zoom Outzoom out
 1 / 5 page
background image
LM95233
Dual Remote Diode and Local Temperature Sensor with
SMBus Interface, TCRITs and TruThermTechnology
General Description
LM95233 is an 11-bit digital temperature sensor with a 2-wire
System Management Bus (SMBus) interface that can moni-
tor the temperature of two remote diodes as well as its own
temperature. The LM95233 can be used to very accurately
monitor the temperature of up to two external devices such
as
microprocessors,
graphics
processors
or
diode-
connected 2N3904s. The LM95233’s TruTherm technology
allows sensing of 90nm or 65nm process thermal diodes
accurately.
The LM95233 reports temperature in two different formats
for +127.875˚C/–128˚C range and 0˚C/255˚C range. The
LM95233 TCRIT1, TCRIT2 and TCRIT3 outputs are trig-
gered when any unmasked channel exceeds its correspond-
ing programmable limit and can be used to shutdown the
system, to turn on the system fans or as a microcontroller
interrupt function. The current status of the TCRIT1, TCRIT2
and TCRIT3 pins can be read back from the status registers.
Mask registers are available for further control of the TCRIT
outputs.
LM95233’s remote temperature channels have program-
mable digital filters to minimize unwanted TCRIT events
when temperature spikes are encountered.
For optimum flexibility and accuracy each LM95233 channel
includes, registers for sub-micron process or 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.
Features
n
Accurately senses die temperature of 2 remote ICs or
diode junctions and local temperature
n
TruTherm technology accurately senses sub-micron
process thermal diodes
n
0.125˚C LSb temperature resolution
n
0.03125˚C LSb remote temperature resolution with
digital filter enabled
n
+127.875˚C/–128˚C and 0˚C/255˚C remote ranges
n
Programmable digital filters and analog front end filter
n
Remote diode fault detection, model selection and offset
correction
n
Mask and status register support
n
3 programmable TCRIT outputs with programmable
shared hysteresis
n
Programmable conversion rate and shutdown mode
one-shot conversion control
n
SMBus 2.0 compatible interface, supports TIMEOUT
n
Three-level address pin
n
14-pin LLP package
Key Specifications
j Local Temperature Accuracy
±2.0 ˚C (max)
j Remote Diode Temperature
Accuracy
±0.75 ˚C (max)
j Supply Voltage
3.0 V to 3.6 V
j Average Supply Current (1Hz
conversion rate)
0.5 mA (typ)
Applications
n
Processor/Computer System Thermal Management
(e.g. Laptop, Desktop, Workstations, Server)
n
Electronic Test Equipment
n
Office Electronics
Connection Diagram
LLP-14
20206301
TOP VIEW
TruThermis a trademark of National Semiconductor Corporation.
ADVANCE INFORMATION
August 2006
© 2006 National Semiconductor Corporation
DS202063
www.national.com


Html Pages

1  2  3  4  5 


Datasheet Download




Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Alldatasheet API   |   Link Exchange   |   Manufacturer List
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn