Datasheet > LM95234

LM95234

更新时间： 2024-11-25 02:58:19

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
44页	1151K
描述
Quad Remote Diode and Local Temperature Sensor with SMBus Interface and TruThermâ¢ Technology

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LM95234 数据手册

LM95234

www.ti.com

SNIS136D –AUGUST 2006–REVISED MARCH 2013

LM95234 Quad Remote Diode and Local Temperature Sensor with SMBus Interface and

TruTherm™ Technology

Check for Samples: LM95234

FEATURES

–

(e.g. Laptop, Desktop, Workstations,

Server)

•

Accurately Senses Die Temperature of 4

Remote ICs or Diode Junctions and Local

Temperature

•

Electronic Test Equipment

Office Electronics

•

TruTherm BJT Beta Compensation Technology

Accurately Senses Sub-micron Process

Thermal Diodes

DESCRIPTION

LM95234 is an 11-bit digital temperature sensor with

a 2-wire System Management Bus (SMBus) interface

that can very accurately monitor the temperature of

four remote diodes as well as its own temperature

that includes patent pending remote diode

Programmable Digital Filters and Analog Front

End Filter

•

0.125°C LSb Temperature Resolution

TruTherm™

BJT

beta

compensation

beta

0.03125°C LSb Remote Temperature

Resolution with Digital Filter Enabled

compensation technology. The four remote diodes

can be external devices such as microprocessors,

graphics processors or diode-connected 2N3904s.

The LM95234's TruTherm BJT beta compensation

technology allows sensing of 90 nm or 65 nm process

thermal diodes accurately.

•

+127.875°C/–128°C and 0°C/255°C Remote

Ranges

Remote Diode Fault Detection, Model

Selection and Offset Correction

•

Mask and Status Register Support

The LM95234 reports temperature in two different

formats for +127.875°C/–128°C range and 0°C/255°C

range. The LM95234 TCRIT1, TCRIT2 and TCRIT3

outputs are triggered when any unmasked channel

exceeds its corresponding 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.

3 Programmable TCRIT Outputs with

Programmable Shared Hysteresis and Fault-

Queue

•

Programmable Conversion Rate and Shutdown

Mode One-shot Conversion Control

SMBus 2.0 Compatible Interface, Supports

TIMEOUT

•

Three-level Address Pin

14-pin WSON Package

Two LM95234 remote temperature channels have

programmable digital filters while the other two

remote channels utilize a fault-queue to minimize

unwanted TCRIT events when temperature spikes

are encountered.

KEY SPECIFICATIONS

•

Local Temperature Accuracy ±2.0°C (max)

Remote Diode Temperature Accuracy ±0.875°C

(max)

For optimum flexibility and accuracy, each LM95234

channel includes registers for sub-micron process or

2N3904 diode model selection as well as offset

•

Supply Voltage 3.0V to 3.6V

Average Supply Current (1Hz conversion rate)

correction.

three-level address pin allows

connection of up to 3 LM95234s to the same SMBus

master. The LM95234 includes power saving

functions such as: programmable conversion rate,

shutdown mode, and disabling of unused channels.

APPLICATIONS

•

Processor/Computer System Thermal

Management

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.

TruTherm is a trademark of Texas Instruments.

All 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.

12 3 4 5 6 7...44

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LM95234 替代型号

型号	品牌	替代类型	描述	数据表
LM95233	TI	功能相似	Dual Remote Diode and Local Temperature Senso
LM95214	TI	功能相似	Quad Remote Diode and Local Temperature Sensor with SMBus Interface
LM95235-Q1	TI	功能相似	Precision Remote Diode Temperature Sensor wit

与LM95234相关器件

型号	品牌	获取价格	描述	数据表
LM95234_07	NSC	获取价格	Quad Remote Diode and Local Temperature Sensor with SMBus Interface and TruTherm Technolog
LM95234_15	TI	获取价格	Quad Remote Diode and Local Temperature Senso
LM95234CISD	NSC	获取价格	Quad Remote Diode and Local Temperature Senso
LM95234CISD/NOPB	NSC	获取价格	Switch/Digital Output Temperature Sensor, DIGITAL TEMP SENSOR-SERIAL, 11BIT(s), 2Cel, SQUA
LM95234CISD/NOPB	TI	获取价格	Quad Remote Diode and Local Temperature Senso
LM95234CISDX	NSC	获取价格	Quad Remote Diode and Local Temperature Senso
LM95234CISDX/NOPB	TI	获取价格	Quad Remote Diode and Local Temperature Senso
LM95235	NSC	获取价格	Precision Remote Diode Temperature Sensor with SMBus Interface and TruTherm Technology
LM95235	TI	获取价格	Precision Remote Diode Temperature Sensor wit
LM95235_08	NSC	获取价格	Precision Remote Diode Temperature Sensor with SMBus Interface and TruTherm? Technology

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