Datasheet > LM95214

LM95214

更新时间： 2024-11-28 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	1094K
描述
Quad Remote Diode and Local Temperature Sensor with SMBus Interface

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LM95214 数据手册

LM95214

www.ti.com

SNIS146A –MARCH 2007–REVISED MARCH 2013

Quad Remote Diode and Local Temperature Sensor with SMBus Interface

Check for Samples: LM95214

FEATURES

APPLICATIONS

•

Accurately Senses Die Temperature of 4

Remote ICs or Diode Junctions and Local

Temperature

•

Processor/Computer System Thermal

Management

–

(e.g. Laptop, Desktop, Workstations,

Server)

•

Programmable Digital Filters and Analog Front

End Filter

•

Electronic Test Equipment

Office Electronics

•

0.125°C LSb Temperature Resolution

0.03125°C LSb Remote Temperature

Resolution with Digital Filter Enabled

DESCRIPTION

The LM95214 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. The four remote diodes can be external

•

+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

devices

such

microprocessors,

graphics

processors that target the ideality of a 2N3904

transistor or diode-connected 2N3904s.

3 Programmable TCRIT Outputs with

Programmable Shared Hysteresis and Fault-

Queue

The LM95214 reports temperature in two different

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

range. The LM95214 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.

•

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

KEY SPECIFICATIONS

•

Local Temperature Accuracy ±2.0°C (max)

Two LM95214 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.

Remote Diode Temperature Accuracy ±1.1°C

(Max)

•

Supply Voltage 3.0V to 3.6V

Average Supply Current (1Hz Conversion

Rate) 0.57 mA (Typ)

For optimum flexibility and accuracy, each LM95214

channel includes registers for offset correction. A

three-level address pin allows connection of up to 3

LM95214s to the same SMBus master. The LM95214

includes power saving functions such as:

programmable conversion rate, shutdown mode, and

disabling of unused channels.

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.

Pentium is a trademark of Intel Corporation.

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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LM95214 替代型号

型号	品牌	替代类型	描述	数据表
LM95234	TI	功能相似	Quad Remote Diode and Local Temperature Senso
LM95213	TI	功能相似	2-Diode Input and Local Digital Temperature Sensor with Two-Wire Interface and TCRIT Outpu

与LM95214相关器件

型号	品牌	获取价格	描述	数据表
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
LM95214CISD/NOPB	TI	获取价格	Quad Remote Diode and Local Temperature Sensor with SMBus Interface
LM95214CISDX	NSC	获取价格	Quad Remote Diode and Local Temperature Sensor with SMBus Interface
LM95214CISDX/NOPB	TI	获取价格	Quad Remote Diode and Local Temperature Sensor with SMBus Interface
LM95221	NSC	获取价格	Dual Remote Diode Digital Temperature Sensor with SMBus Interface
LM95221	TI	获取价格	Dual Remote Diode Digital Temperature Sensor with SMBus Interface
LM95221_15	TI	获取价格	Dual Remote Diode Digital Temperature Sensor with SMBus Interface
LM95221CIMM	NSC	获取价格	Dual Remote Diode Digital Temperature Sensor with SMBus Interface
LM95221CIMM/NOPB	TI	获取价格	Dual Remote Diode Digital Temperature Sensor with SMBus Interface

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