LM92CIMXNOPB National Semiconductor, LM92CIMXNOPB Datasheet

LM92CIMXNOPB

Manufacturer Part Number

LM92CIMXNOPB

Description

SOP8

Manufacturer

National Semiconductor

Datasheet

1.LM92CIMXNOPB.pdf (17 pages)

Specifications of LM92CIMXNOPB

Date_code

10+

Current page: 1 of 17
Download datasheet (812Kb)

LM92

Thermal Window Comparator with Two-Wire Interface

General Description

The LM92 is a digital temperature sensor and thermal win-

dow comparator with an I

accuracy of

of the LM92 eases the design of temperature control sys-

tems. The open-drain Interrupt (INT) output becomes active

whenever temperature goes outside a programmable win-

dow,

(T_CRIT_A) output becomes active when the temperature

exceeds a programmable critical limit. The INT output can

operate in either a comparator or event mode, while the

T_CRIT_A output operates in comparator mode only.

The host can program both the upper and lower limits of the

window as well as the critical temperature limit. Program-

mable hysterisis as well as a fault queue are available to

minimize false tripping. Two pins (A0, A1) are available for

address selection. The sensor powers up with default thresh-

olds of 2˚C T

T_CRIT.

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

interface, 12-bit + sign output, and full-scale range of over

128˚C make it ideal for a wide range of applications. These

include thermal management and protection applications in

personal computers, electronic test equipment, office elec-

tronics, automotive, medical and HVAC applications.

Features

n Window comparison simplifies design of ACPI

n Serial Bus interface

n Separate open-drain outputs for Interrupt and Critical

Simplified Block Diagram

I 2 C

compatible temperature monitoring and control.

Temperature shutdown

0.33˚C Accurate, 12-Bit + Sign Temperature Sensor and

is a registered trademark of Philips Corporation.

while

0.33˚C. The window-comparator architecture

HYST

separate

, 10˚C T

™

Critical

LOW

Serial Bus interface and an

, 64˚C T

Temperature Alarm

DS101051

HIGH

, and 80˚C

n Shutdown mode to minimize power consumption

n Up to 4 LM92s can be connected to a single bus

n 12-bit + sign output

n Operation up to 150˚C

Key Specifications

Applications

n HVAC

n Medical Electronics

n Electronic Test Equipment

n System Thermal Management

n Personal Computers

n Office Electronics

n Automotive

Accuracy

Supply Voltage

Supply Current

Temperature

Linearity

Resolution

operating

shutdown

10105101

−25˚C to 150˚C

−10˚C to 85˚C

10˚C to 50˚C

125˚C

30˚C

625 µA (max)

0.33˚C (max)

0.50˚C (max)

1.25˚C (max)

www.national.com

2.7V to 5.5V

350 µA (typ)

1.0˚C (max)

1.5˚C (max)

0.5˚C (max)

March 2005

5 µA (typ)

0.0625˚C

Related parts for LM92CIMXNOPB

Related keywords

LM92CIMXNOPB datasheet
LM92CIMXNOPB data sheet
LM92CIMXNOPB pdf datasheet
LM92CIMXNOPB component
LM92CIMXNOPB part
LM92CIMXNOPB distributor
LM92CIMXNOPB RoHS
LM92CIMXNOPB datasheet download