首頁 感測器 溫度感測器 數位溫度感測器
首頁
感測器
溫度感測器
數位溫度感測器

LM99

現行

具 TruTherm™ 技術和 SMBus 介面的遠端和本機溫度感測器

立即訂購
產品規格表

LM99

現行
產品規格表 立即訂購

產品詳細資料

Local sensor accuracy (max) 3 Type Remote Operating temperature range (°C) 0 to 85 Supply voltage (min) (V) 2.85 Interface type I2C, SMBus Supply voltage (max) (V) 3.6 Features ALERT, One-shot conversion Supply current (max) (µA) 1700 Temp resolution (max) (bps) 8 Remote channels (#) 1 Addresses 2 Rating Catalog
Local sensor accuracy (max) 3 Type Remote Operating temperature range (°C) 0 to 85 Supply voltage (min) (V) 2.85 Interface type I2C, SMBus Supply voltage (max) (V) 3.6 Features ALERT, One-shot conversion Supply current (max) (µA) 1700 Temp resolution (max) (bps) 8 Remote channels (#) 1 Addresses 2 Rating Catalog
VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • Accurately Senses the Temperature of Remote Diodes
  • Offset Register Allows Use of a Variety of Thermal Diodes
  • On-board Local Temperature Sensing
  • 10 Bit Plus Sign Remote Diode Temperature Data Format, 0.125 °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 VSSOP Package

Key Specifications

  • Supply Voltage 3.0 V to 3.6 V
  • Supply Current 0.8 mA (typ)
  • Local Temp Accuracy
    (Includes Quantization error)
    • TA = 25°C to 125°C ±3.0°C (Max)
  • Remote Diode Temp Accuracy
    (Includes Quantization Error)
    • TA = 30°C to 50°C, TD = 120°C to 140°C ±1.0°C (Max)
    • TA = 0°C to 85°C, TD = 25°C to 140°C ±3.0°C (Max)

All trademarks are the property of their respective owners.

  • Accurately Senses the Temperature of Remote Diodes
  • Offset Register Allows Use of a Variety of Thermal Diodes
  • On-board Local Temperature Sensing
  • 10 Bit Plus Sign Remote Diode Temperature Data Format, 0.125 °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 VSSOP Package

Key Specifications

  • Supply Voltage 3.0 V to 3.6 V
  • Supply Current 0.8 mA (typ)
  • Local Temp Accuracy
    (Includes Quantization error)
    • TA = 25°C to 125°C ±3.0°C (Max)
  • Remote Diode Temp Accuracy
    (Includes Quantization Error)
    • TA = 30°C to 50°C, TD = 120°C to 140°C ±1.0°C (Max)
    • TA = 0°C to 85°C, TD = 25°C to 140°C ±3.0°C (Max)

All trademarks are the property of their respective owners.

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°C and operates on that shifted temperature:

  TACTUAL DIODE JUNCTION = TLM99 + 16°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.

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 temperature 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.

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°C and operates on that shifted temperature:

  TACTUAL DIODE JUNCTION = TLM99 + 16°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.

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 temperature 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.
filter 尋找其它 數位溫度感測器
下載 觀看有字幕稿的影片 影片

技術文件

star =TI 所選的此產品重要文件
找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 2
類型 標題 日期
* Data sheet LM99 Accurate High Temp, Remote Diode Temp Sensor w/Two-Wire Interface datasheet (Rev. D) 2013年 3月 22日
User guide LM86, LM89, LM89-1, LM90, LM99, LM99-1 Evaluation Board User’s Guide 2012年 2月 29日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

驅動程式或資料庫

LM90SW-LINUX — 適用於 LM90 的 Linux 驅動程式

The Linux driver supports the LM90 series of Remote and Local Temp Sensors. The Linux driver supports communication through the I2C bus and interfaces with the Hardware Monitoring sub-system.

 

Linux Mainline Status

Available in Linux Main line: Yes
Available through git.ti.com: N/A

Supported Devices:

  • (...)
View Options
支援軟體

DIGITALTEMPSENSORSEVM-SW — Eval Board Software for Hardware Monitors and Digital Temp Sensors

Evaluation Board Software for Hardware Monitors and Digital Temperature Sensors
支援產品和硬體

支援產品和硬體

產品
數位溫度感測器
LM63 — 具風扇控制的 1 個遠端與本機溫度感測器 LM64 — 具風扇控制與 5 個 GPIO 的 1 個遠端與本機溫度感測器 LM71 — 具 SPI 介面的 ±1.5°C 溫度感測器 LM71-Q1 — 具 SPI 介面的汽車級、±1.5°C 溫度感測器 LM73 — 具 I2C/SMBus 介面的 ±1°C 溫度感測器 LM86 — 具 SMBu 介面的 ±0.75°C 遠端和本機溫度感測器 LM89 — 具 SMBus 介面和 2 個匯流排分載位址的 ± 0.75 ° C 遠端和本機溫度感測器 LM90 — 具 SMBus 介面的遠端和本機溫度感測器 LM93 — 具硬體監控器和 16 個電源電壓監控器的 2 個遠端、1 個本機溫度感測器 LM95010 — 具 SensorPath 介面的 ±2°C 溫度感測器 LM95071 — 具 SPI 介面的 ±1°C 溫度感測器 LM95221 — 具 beta 補償和 SMBus、I2C 介面的 ±3°C 雙遠端和本機溫度感測器 LM95231 — 具 TruTherm™ 技術和 SMBus 介面的雙遠端和本機溫度感測器 LM95235 — 具 SMBus、beta 補償且適用 65/90nm 二極體的 ±0.75°C 遠端和本機溫度感測器 LM95235-Q1 — 具 TruTherm™ 技術和 SMBus 的汽車級 ±2°C 遠端和本機溫度感測器 LM96000 — 具風扇控制和 6 個電源電壓監控器的硬體監控器 LM96080 — 具風扇速度和電源電壓監控器的 1 個本機溫度感測器 LM96163 — 具 beta 補償和風扇控制的 1 個遠端與本機溫度感測器 LM99 — 具 TruTherm™ 技術和 SMBus 介面的遠端和本機溫度感測器
下載
支援軟體

SENSOREVAL — Eval Board Software For Hardware Monitors And Digital Temperature Sensors

SensorEval
SensorEval software supports the latest TI temperature sensor and hardware monitor evaluation boards via USB interface. It also allows access to sensors mounted directly on motherboards that support Intel chip sets.

  • Download SensorEval Software and Manual
  • Windows XP support is offered for (...)
支援產品和硬體

支援產品和硬體

產品
數位溫度感測器
LM63 — 具風扇控制的 1 個遠端與本機溫度感測器 LM64 — 具風扇控制與 5 個 GPIO 的 1 個遠端與本機溫度感測器 LM71 — 具 SPI 介面的 ±1.5°C 溫度感測器 LM71-Q1 — 具 SPI 介面的汽車級、±1.5°C 溫度感測器 LM73 — 具 I2C/SMBus 介面的 ±1°C 溫度感測器 LM75A — 2C 業界標準溫度感測器、I2C/SMBus 介面 LM86 — 具 SMBu 介面的 ±0.75°C 遠端和本機溫度感測器 LM89 — 具 SMBus 介面和 2 個匯流排分載位址的 ± 0.75 ° C 遠端和本機溫度感測器 LM90 — 具 SMBus 介面的遠端和本機溫度感測器 LM93 — 具硬體監控器和 16 個電源電壓監控器的 2 個遠端、1 個本機溫度感測器 LM95010 — 具 SensorPath 介面的 ±2°C 溫度感測器 LM95071 — 具 SPI 介面的 ±1°C 溫度感測器 LM95172-Q1 — 具 200°C 功能和 SPI 介面的汽車級 ±1°C 溫度感測器 LM95214 — 具 SMBus 介面的 ±2°C 四遠端和本機溫度感測器 LM95221 — 具 beta 補償和 SMBus、I2C 介面的 ±3°C 雙遠端和本機溫度感測器 LM95231 — 具 TruTherm™ 技術和 SMBus 介面的雙遠端和本機溫度感測器 LM95233 — 具 TruTherm™ 技術和 SMBus 介面的 ±2°C 雙遠端和本機溫度感測器 LM95234 — 具 TruTherm™ 技術和 SMBus 介面的 ±2°C 雙遠端和本機溫度感測器 LM95235 — 具 SMBus、beta 補償且適用 65/90nm 二極體的 ±0.75°C 遠端和本機溫度感測器 LM95235-Q1 — 具 TruTherm™ 技術和 SMBus 的汽車級 ±2°C 遠端和本機溫度感測器 LM95241 — 具 beta 補償和 SMBus、I2C 介面的 ±1.25°C 雙遠端和本機溫度感測器 LM95245 — 具 SMBus、beta 補償且適用 45nm 二極體的 ±0.75°C 遠端和本機溫度感測器 LM96000 — 具風扇控制和 6 個電源電壓監控器的硬體監控器 LM96080 — 具風扇速度和電源電壓監控器的 1 個本機溫度感測器 LM96163 — 具 beta 補償和風扇控制的 1 個遠端與本機溫度感測器 LM99 — 具 TruTherm™ 技術和 SMBus 介面的遠端和本機溫度感測器
精確 ADC
ADC128D818 — 具溫度感測器、內部/外部電壓參考和 I2C 介面的 12 位元 82SPS 8 通道 ΔΣ ADC
下載
封裝 針腳 CAD 符號、佔位空間與 3D 模型
VSSOP (DGK) 8 Ultra Librarian
適用 TI 的評估品項標準條款與條件。

訂購與品質

內含資訊：
  • RoHS
  • REACH
  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 認證摘要
  • 進行中持續性的可靠性監測
內含資訊：
  • 晶圓廠位置
  • 組裝地點

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

以英文檢視所有論壇主題

內容係由 TI 和社群貢獻者依「現狀」提供，且不構成 TI 規範。檢視使用條款。

若有關於品質、封裝或訂購 TI 產品的問題，請參閱 TI 支援。​​​​​​​​​​​​​​

影片