LM32 datasheet(1/24 Pages) NSC

номер детали	LM32

подробное описание детали	Dual Thermal Diode Temperature Sensor with SensorPath Bus

PDF	24 Pages

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производитель	NSC [National Semiconductor (TI)]

домашняя страница	http://www.national.com

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LM32

Dual Thermal Diode Temperature Sensor with

SensorPath™ Bus

General Description

The LM32 is a digital temperature sensor that measures 3

temperature zones and has a single-wire interface compat-

ible with National Semiconductor’s SensorPath bus. Sensor-

Path data is pulse width encoded, thereby allowing the LM32

to be easily connected to many general purpose micro-

controllers. Several National Semiconductor Super I/O prod-

ucts include a fully integrated SensorPath master, that when

connected to an LM32 can realize a hardware monitor func-

tion that includes limit checking for measured values, au-

tonomous fan speed control and many other functions.

The LM32 measures the temperature of its own die as well

as two external devices such as a processor thermal diode

or a diode connected transistor. The LM32 can resolve tem-

peratures up to 255˚C and down to -256˚C. The operating

temperature range of the LM32 is 0˚C to +125˚C. The ad-

dress programming pin allows two LM32s to be placed on

one SensorPath bus.

Features

n

SensorPath Interface

— 2 hardware programmable addresses

n

2 remote diode temperature sensor zones

n

Internal local temperature zone

n

0.5 ˚C resolution

n

Measures temperatures up to 140 ˚C

n

14-lead TSSOP package

Key Specifications

n

Temperature Sensor Accuracy

±3 ˚C (max)

n

Temperature Range:

— LM32 junction

0 ˚C to +85 ˚C

— Remote Temp Accuracy

0 ˚C to +100 ˚C

n

Power Supply Voltage

+3.0 V to +3.6 V

n

Average Power Supply Current

0.5 mA (typ)

n

Conversion Time (all Channels)

22.5ms to 1456ms

Applications

n

Microprocessor based equipment

(Motherboards, Video Cards, Base-stations, Routers,

ATMs, Point of Sale, …)

n

Power Supplies

Typical Application

20071101

SensorPath™ is a trademark of National Semiconductor Corporation

May 2004

DS200711

www.national.com

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LM32 датащи(PDF) 1 Page - National Semiconductor (TI)

LM32 датащи(HTML) 1 Page - National Semiconductor (TI)

Аналогичный номер детали - LM32

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