LM99CIMMX Datasheet

IC型號(hào)：
LM99CIMMX
PDF描述：
【1C Accurate, High Temperature, Remote Diode Temperature Se...
文件大?。?/label>
345.13KB
PDF頁數(shù)：
20頁
芯片廠家：
NSC

閱覽下載糾錯(cuò) 0

掃碼查看芯片數(shù)據(jù)手冊(cè)

上傳產(chǎn)品規(guī)格書

PDF預(yù)覽

LM99

鹵

1藲C Accurate, High Temperature, Remote Diode Temperature Sensor with Two-Wire

Interface

July 2003

LM99

鹵

1藲C Accurate, High Temperature, Remote Diode

Temperature Sensor with Two-Wire Interface

General Description

The LM99 is an 11-bit remote diode temperature sensor with

a 2-wire System Management Bus (SMBus) serial interface.

The LM99 accurately measures: (1) its own temperature and

(2) the temperature of a remote diode-connected transistor

such as the 2N3904 or a thermal diode commonly found on

Graphics Processor Units (GPU), Computer Processor Units

(CPU or other ASICs. The LM99 remote diode temperature

sensor shifts the temperature from the remote sensor down

16藲C and operates on that shifted temperature:

ACTUAL DIODE JUNCTION

= T

LM99

+ 16藲C

The local temperature reading requires no offset.

The LM99 has an Offset Register which provides a means

for precise matching to various thermal diodes. Contact

hardware.monitor

nsc.com for the latest details.

The LM99 and LM99-1 have the same functions but different

SMBus slave addresses. This allows for one of each to be on

the same bus at the same time.

Activation of the ALERT output occurs when any tempera-

ture goes outside a preprogrammed window set by the HIGH

and LOW temperature limit registers or exceeds the T_CRIT

temperature limit. Activation of the T_CRIT_A occurs when

any temperature exceeds the T_CRIT programmed limit.

On-board local temperature sensing

10 bit plus sign remote diode temperature data format,

0.125 藲C resolution

T_CRIT_A output useful for system shutdown

ALERT output supports SMBus 2.0 protocol

SMBus 2.0 compatible interface, supports TIMEOUT

8-pin MSOP package

Key Specifications

Supply Voltage

Supply Current

3.0 V to 3.6 V

0.8 mA (typ)

= 25藲C to 125藲C

Local Temp Accuracy (includes quantization error)

鹵

3.0藲C (max)

Remote Diode Temp Accuracy (includes quantization

error)

= 30藲C to 50藲C, T

= 120藲C to 140藲C

= 0藲C to 85藲C, T

= 25藲C to 140藲C

鹵

1.0藲C (max)

鹵

3.0藲C (max)

Applications

Graphics Processor Thermal Management

Computer Processor Thermal Management

Electronic Test Equipment

Office Electronics

Features

Accurately senses the temperature of remote diodes

Offset register allows use of a variety of thermal diodes

Simplified Block Diagram

20053801

NVIDIA

廬

is a registered trademark of NVIDIA Corporation.

GeForce

鈩?/div>

is a trademark of NVIDIA Corporation.

Intel

廬

and Pentium

廬

are registered trademarks of Intel Corporation.

漏 2003 National Semiconductor Corporation

DS200538

www.national.com

制造商
National Semiconductor (TI)
輸出類型
Digital
準(zhǔn)確性
+/- 1 C, +/- 3 C
數(shù)字輸出 - 總線接口
Serial (2-Wire)
最大工作溫度
+ 125 C
最小工作溫度
0 C
封裝
Reel
描述/功能
Temperature Sensor
數(shù)字輸出 - 位數(shù)
8 bit, 10 bit+ Sign
工作電源電壓
3 V to 3.6 V
工廠包裝數(shù)量
3500

LM99CIMMX相關(guān)型號(hào)PDF文件下載

型號(hào)

版本

描述

廠商

下載
LM99

英文版

【1C Accurate, High Temperature, Remote Diode Temperature Se...

NSC

LM99
LM99

英文版

【1C Accurate, High Temperature, Remote Diode Temperature Se...

NSC [Natio...

LM99
LM99CIMM

英文版

【1C Accurate, High Temperature, Remote Diode Temperature Se...

NSC

LM99CIMM
LM99CIMM

英文版

【1C Accurate, High Temperature, Remote Diode Temperature Se...

NSC [Natio...

LM99CIMM
LM99CIMMX

英文版

【1C Accurate, High Temperature, Remote Diode Temperature Se...

NSC

LM99CIMMX
LM99CIMMX

英文版

【1C Accurate, High Temperature, Remote Diode Temperature Se...

NSC [Natio...

LM99CIMMX
LM99-1CIMM

英文版

【1C Accurate, High Temperature, Remote Diode Temperature Se...

NSC

LM99-1CIMM
LM99-1CIMM

英文版

【1C Accurate, High Temperature, Remote Diode Temperature Se...

NSC [Natio...

LM99-1CIMM
LM99-1CIMM...

英文版

【1C Accurate, High Temperature, Remote Diode Temperature Se...

NSC

LM99-1CIMMX
LM99-1CIMM...

英文版

【1C Accurate, High Temperature, Remote Diode Temperature Se...

NSC [Natio...

LM99-1CIMMX
LM99CIMMX/...

英文版

SENSOR TEMPERATURE SMBUS 8VSSOP

LM99CIMMX/NOPB

LM99CIMMX Datasheet

PDF預(yù)覽

LM99CIMMX 產(chǎn)品屬性

LM99CIMMX相關(guān)型號(hào)PDF文件下載

您可能感興趣的PDF文件資料

熱門IC型號(hào)推薦

LM99CIMMX Datasheet

PDF預(yù)覽

LM99CIMMX 產(chǎn)品屬性

LM99CIMMX相關(guān)型號(hào)PDF文件下載

您可能感興趣的PDF文件資料

熱門IC型號(hào)推薦

建議反饋

PDF糾錯(cuò)X