LM95233

更新时间： 2024-09-14 03:51:39

品牌	Logo	应用领域
美国国家半导体 - NSC		二极管传感器温度传感器
页数	文件大小	规格书
5页	497K
描述
Dual Remote Diode and Local Temperature Sensor with SMBus Interface, TCRITs and TruTherm⑩ Technology

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LM95233 数据手册

ADVANCE INFORMATION

August 2006

LM95233

Dual Remote Diode and Local Temperature Sensor with

™

SMBus Interface, TCRITs and TruTherm Technology

n TruTherm technology accurately senses sub-micron

process thermal diodes

General Description

LM95233 is an 11-bit digital temperature sensor with a 2-wire

n 0.125˚C LSb temperature resolution

System Management Bus (SMBus) interface that can moni-

n 0.03125˚C LSb remote temperature resolution with

tor the temperature of two remote diodes as well as its own

digital filter enabled

temperature. The LM95233 can be used to very accurately

+127.875˚C/–128˚C and 0˚C/255˚C remote ranges

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.

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

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.

n 14-pin LLP package

Key Specifications

LM95233’s remote temperature channels have program-

mable digital filters to minimize unwanted TCRIT events

when temperature spikes are encountered.

Local Temperature Accuracy

2.0 ˚C (max)

0.75 ˚C (max)

Remote Diode Temperature

Accuracy

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.

Supply Voltage

3.0 V to 3.6 V

0.5 mA (typ)

Average Supply Current (1Hz

conversion rate)

Applications

n Processor/Computer System Thermal Management

(e.g. Laptop, Desktop, Workstations, Server)

n Electronic Test Equipment

Features

n Accurately senses die temperature of 2 remote ICs or

n Office Electronics

diode junctions and local temperature

Connection Diagram

LLP-14

20206301

TOP VIEW

™

TruTherm is a trademark of National Semiconductor Corporation.

DS202063

www.national.com

12 3 4 5

中文翻译

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与LM95233相关器件

型号	品牌	获取价格	描述	数据表
LM95233_07	NSC	获取价格	Dual Remote Diode and Local Temperature Sensor with SMBus Interface and TruTherm Technolog
LM95233_15	TI	获取价格	Dual Remote Diode and Local Temperature Senso
LM95233CISD	NSC	获取价格	Dual Remote Diode and Local Temperature Senso
LM95233CISD	TI	获取价格	Dual Remote Diode and Local Temperature Senso
LM95233CISD/NOPB	NSC	获取价格	Switch/Digital Output Temperature Sensor, DIGITAL TEMP SENSOR-SERIAL, 11BIT(s), 2Cel, SQUA
LM95233CISD/NOPB	TI	获取价格	Dual Remote Diode and Local Temperature Senso
LM95233CISDX	NSC	获取价格	Dual Remote Diode and Local Temperature Senso
LM95233CISDX/NOPB	TI	获取价格	Dual Remote Diode and Local Temperature Senso
LM95234	NSC	获取价格	Quad Remote Diode and Local Temperature Senso
LM95234	TI	获取价格	Quad Remote Diode and Local Temperature Senso

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