LM92CIMX/NOPB【PDF 1/25 页】IC SENSOR TEMP/THERM COMP 8-SOIC

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Sheet目录41

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LM 92

www.ti.com

SNIS110D MARCH 2000REVISED MARCH 2013

?.33癈A ccurate,12-B it+SignTem peratureSensorandTherm alW indowC om parator

W ithTw o-W ireInterface

Check for Samples: LM92

FEATURES

DESCRIPTION

The LM92 is a digital temperature sensor and thermal

" Window Comparison Simplifies Design of

window comparator with an I

C" Serial Bus interface

ACPI-Compatible Temperature Monitoring and

and an accuracy of ?.33癈. The window-comparator

Control

architecture of the LM92 eases the design of

" Serial Bus Interface

temperature control systems. The open-drain

Interrupt (INT) output becomes active whenever

" Separate Open-Drain Outputs for Interrupt and

temperature goes outside a programmable window,

Critical Temperature Shutdown

while a separate Critical Temperature Alarm

" Shutdown Mode to Minimize Power

(T_CRIT_A) output becomes active when the

Consumption

temperature exceeds a programmable critical limit.

" Up to Four LM92s can be Connected to a

The INT output can operate in either a comparator or

Single Bus

event mode, while the T_CRIT_A output operates in

comparator mode only.

" 12-Bit + Sign Output

The host can program both the upper and lower limits

" Operation up to 150癈

of the window as well as the critical temperature limit.

Programmable Hysteresis as well as a fault queue

APPLICATIONS

are available to minimize false tripping. Two pins (A0,

" HVAC

A1) are available for address selection. The sensor

" Medical Electronics

powers up with default thresholds of 2癈 T

HYST

, 10癈

LOW

, 64癈 T

HIGH

, and 80癈 T_CRIT.

" Electronic Test Equipment

The LM92's 2.7V to 5.5V supply voltage range, Serial

" System Thermal Management

Bus interface, 12-bit + sign output, and full-scale

" Personal Computers

range of over 128癈 make it ideal for a wide range of

" Office Electronics

applications. These include thermal management and

" Automotive

protection applications in personal computers,

electronic test equipment, office electronics,

automotive, medical and HVAC applications.

KEY SPECIFICATIONS

" Supply Voltage 2.7V to 5.5V

" Supply Current operating 350 糀 (typ) 625 糀

(max) shutdown 5 糀 (typ)

" Temperature Accuracy

30癈, ?.33癈 (max)

10癈 to 50癈, ?.50癈 (max)

10癈 to 85癈, ?.0癈 (max)

125癈, ?.25癈 (max)

25癈 to 150癈, ?.5癈 (max)

" Linearity ?.5癈 (max)

" Resolution 0.0625癈

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.

C is a trademark of dcl_owner.

3All 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 the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

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