Datasheet > LM95213

LM95213

更新时间： 2024-11-24 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
34页	722K
描述
2-Diode Input and Local Digital Temperature Sensor with Two-Wire Interface and TCRIT Outputs

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LM95213 数据手册

March 2007

LM95213

2-Diode Input and Local Digital Temperature Sensor with

Two-Wire Interface and TCRIT Outputs

0.03125°C LSb remote temperature resolution with digital

filter enabled

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

■

General Description

LM95213 is an 11-bit digital temperature sensor with a 2-wire

■

System Management Bus (SMBus) interface that can monitor

the temperature of two remote diodes as well as its own tem-

perature. The LM95213 can be used to very accurately mon-

itor the temperature of up to two external devices such as

microprocessors, graphics processors or diode-connected

2N3904s.

Programmable digital filters and analog front end filter

Remote diode fault detection, model selection and offset

correction

Mask and status register support

■

3 programmable TCRIT outputs with programmable

shared hysteresis

Programmable conversion rate and shutdown mode one-

shot conversion control

SMBus 2.0 compatible interface, supports TIMEOUT

Three-level address pin

The LM95213 reports temperature in two different formats for

+127.875°C/–128°C range and 0°C/255°C range. The

LM95213 TCRIT1, TCRIT2 and TCRIT3 outputs are triggered

when any unmasked channel exceeds its corresponding pro-

grammable limit and can be used to shutdown the system, to

turn on the system fans or as a microcontroller interrupt func-

tion. The current status of the TCRIT1, TCRIT2 and TCRIT3

pins can be read back from the status registers. Mask regis-

ters are available for further control of the TCRIT outputs.

■

14-pin LLP package

Key Specifications

LM95213's remote temperature channels have pro-

grammable digital filters to minimize unwanted TCRIT events

when temperature spikes are encountered.

±2.0 °C (max)

±1.1 °C (max)

3.0 V to 3.6 V

0.57 mA (typ)

■ꢀLocal Temperature Accuracy

■ꢀRemote Diode Temperature Accuracy

■ꢀSupply Voltage

■ꢀAverage Supply Current (1Hz

conversion rate)

For optimum flexibility and accuracy each LM95213 channel

includes offset correction registers for targeting diodes other

than the 2N3904. A three level address pin allows connection

of up to 3 LM95213s to the same SMBus master. The

LM95213 includes power saving functions such as: pro-

grammable conversion rate, shutdown mode, and turn off of

unused channels.

Applications

Processor/Computer System Thermal Management

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

■

Features

Electronic Test Equipment

Office Electronics

■

Accurately senses die temperature of 2 remote ICs or

■

diode junctions and local temperature

0.125°C LSb temperature resolution

■

Connection Diagram

LLP-14

30013801

TOP VIEW

TruTherm™ is a trademark of National Semiconductor Corporation.

Intel™ is a trademark of Intel Corporation.

Pentium™ is a trademark of Intel Corporation.

300138

www.national.com

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与LM95213相关器件

型号	品牌	获取价格	描述	数据表
LM95213_15	TI	获取价格	2-Diode Input and Local Digital Temperature Sensor with Two-Wire Interface and TCRIT Outpu
LM95213CISD	NSC	获取价格	2-Diode Input and Local Digital Temperature Sensor with Two-Wire Interface and TCRIT Outpu
LM95213CISD	TI	获取价格	Switch/Digital Output Temperature Sensor, DIGITAL TEMP SENSOR-SERIAL, 11BIT(s), 2Cel, SQUA
LM95213CISD/NOPB	TI	获取价格	2-Diode Input and Local Digital Temperature Sensor with Two-Wire Interface and TCRIT Outpu
LM95213CISDX	NSC	获取价格	2-Diode Input and Local Digital Temperature Sensor with Two-Wire Interface and TCRIT Outpu
LM95213CISDX/NOPB	TI	获取价格	±2°C Dual Remote and Local Temperatur
LM95214	NSC	获取价格	Quad Remote Diode and Local Temperature Sensor with SMBus Interface
LM95214	TI	获取价格	Quad Remote Diode and Local Temperature Sensor with SMBus Interface
LM95214_15	TI	获取价格	Quad Remote Diode and Local Temperature Sensor with SMBus Interface
LM95214CISD	NSC	获取价格	Quad Remote Diode and Local Temperature Sensor with SMBus Interface

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