產品詳情

Local sensor accuracy (max) 1 Type Local Operating temperature range (°C) -40 to 150 Supply voltage (min) (V) 2.7 Interface type I2C, SMBus Supply voltage (max) (V) 5.5 Features ALERT, One-shot conversion, UL recognized Supply current (max) (μA) 550 Temp resolution (max) (bps) 14 Remote channels (#) 0 Addresses 6 Rating Catalog
Local sensor accuracy (max) 1 Type Local Operating temperature range (°C) -40 to 150 Supply voltage (min) (V) 2.7 Interface type I2C, SMBus Supply voltage (max) (V) 5.5 Features ALERT, One-shot conversion, UL recognized Supply current (max) (μA) 550 Temp resolution (max) (bps) 14 Remote channels (#) 0 Addresses 6 Rating Catalog
SOT-23-THN (DDC) 6 8.12 mm2 2.9 x 2.8
  • Single Address Pin Offers Choice of Three
    Selectable Addresses Per Version for a Total of
    Six Possible Addresses.
  • SMBus and I2C-compatible Two-Wire Interface
  • Supports 400-Khz Operation
  • Shutdown Mode With One-shot Feature Available
    for Very Low Average Power Consumption
  • Programmable Digital Temperature Resolution
    From 11 Bits to 14 Bits
  • Fast Conversion Rate Ideal for Quick Power Up
    and Measuring Rapidly Changing Temperature
  • Open-Drain ALERT Output Pin Goes Active When
    Temperature is Above a Programmed
    Temperature Limit
  • Very Stable, Low-noise Digital Output
  • UL Recognized Component
  • Key Specifications
    • ?Supply Current
      • Operating
        • 320 μA (Typical)
        • 495 μA (Maximum)
      • Shutdown
        • 8 μA (Maximum)
        • 1.9 μA (Typical)
    • Temperature Accuracy
      • ?10°C to 80°C: ±1.0°C (Maximum)
      • ?25°C to 115°C: ±1.5°C (Maximum)
      • ?40°C to 150°C: ±2°C (Maximum)
    • Resolution
      • 0.25°C to 0.03125°C
    • Conversion Time
      • 11-Bit (0.25°C): 14 ms (Maximum)
      • 14-Bit (0.03125°C): 112 ms (Maximum)
  • Single Address Pin Offers Choice of Three
    Selectable Addresses Per Version for a Total of
    Six Possible Addresses.
  • SMBus and I2C-compatible Two-Wire Interface
  • Supports 400-Khz Operation
  • Shutdown Mode With One-shot Feature Available
    for Very Low Average Power Consumption
  • Programmable Digital Temperature Resolution
    From 11 Bits to 14 Bits
  • Fast Conversion Rate Ideal for Quick Power Up
    and Measuring Rapidly Changing Temperature
  • Open-Drain ALERT Output Pin Goes Active When
    Temperature is Above a Programmed
    Temperature Limit
  • Very Stable, Low-noise Digital Output
  • UL Recognized Component
  • Key Specifications
    • ?Supply Current
      • Operating
        • 320 μA (Typical)
        • 495 μA (Maximum)
      • Shutdown
        • 8 μA (Maximum)
        • 1.9 μA (Typical)
    • Temperature Accuracy
      • ?10°C to 80°C: ±1.0°C (Maximum)
      • ?25°C to 115°C: ±1.5°C (Maximum)
      • ?40°C to 150°C: ±2°C (Maximum)
    • Resolution
      • 0.25°C to 0.03125°C
    • Conversion Time
      • 11-Bit (0.25°C): 14 ms (Maximum)
      • 14-Bit (0.03125°C): 112 ms (Maximum)

The LM73 is an integrated, digital-output temperature sensor featuring an incremental Delta-Sigma ADC with a two-wire interface that is compatible with the SMBus and I2C interfaces. The host can query the LM73 at any time to read temperature.

Available in a 6-pin SOT package, the LM73 occupies very little board area while operating over a wide temperature range (–40°C to 150°C) and providing ±1°C accuracy from –10°C to 80°C. The user can optimize between the conversion time and the sensitivity of the LM73 by programming it to report temperature in any of four different resolutions. Defaulting to 11-bit mode (0.25°C/LSB), the LM73 measures temperature in a maximum time of 14 ms, making it ideal for applications that require temperature data very soon after power-up. In its maximum resolution, 14-bit mode (0.03125°C/LSB), the LM73 is optimized to sense very small changes in temperature.

A single multi-level address line selects one of three unique device addresses. An open-drain ALERT output goes active when the temperature exceeds a programmable limit. Both the data and clock lines are filtered for excellent noise tolerance and reliable communication. Additionally, a time-out feature on the clock and data lines causes the LM73 to automatically reset these lines if either is held low for an extended time, thus exiting any bus lock-up condition without processor intervention.

The LM73 is an integrated, digital-output temperature sensor featuring an incremental Delta-Sigma ADC with a two-wire interface that is compatible with the SMBus and I2C interfaces. The host can query the LM73 at any time to read temperature.

Available in a 6-pin SOT package, the LM73 occupies very little board area while operating over a wide temperature range (–40°C to 150°C) and providing ±1°C accuracy from –10°C to 80°C. The user can optimize between the conversion time and the sensitivity of the LM73 by programming it to report temperature in any of four different resolutions. Defaulting to 11-bit mode (0.25°C/LSB), the LM73 measures temperature in a maximum time of 14 ms, making it ideal for applications that require temperature data very soon after power-up. In its maximum resolution, 14-bit mode (0.03125°C/LSB), the LM73 is optimized to sense very small changes in temperature.

A single multi-level address line selects one of three unique device addresses. An open-drain ALERT output goes active when the temperature exceeds a programmable limit. Both the data and clock lines are filtered for excellent noise tolerance and reliable communication. Additionally, a time-out feature on the clock and data lines causes the LM73 to automatically reset these lines if either is held low for an extended time, thus exiting any bus lock-up condition without processor intervention.
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類型 標題 下載最新的英語版本 日期
* 數據表 LM73 2.7-V, SOT-23, 11- to 14-Bit Digital Temperature Sensor With 2-Wire Interface 數據表 (Rev. F) PDF | HTML 2015年 10月 29日
應用手冊 如何讀取和解釋數字溫度傳感器輸出數據 (Rev. A) PDF | HTML 英語版 (Rev.A) PDF | HTML 2025年 1月 29日
證書 UL Certificate of Compliance Vol1-Sec6 E232195 2018年 8月 9日
應用手冊 Applying I2C-Compatible Temperature Sensors in Systems With Slow Clock Edges (Rev. A) 2013年 5月 6日

設計和開發(fā)

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驅動程序或庫

LM73SW-LINUX — 用于 LM73 的 Linux 驅動程序

The Linux driver supports the LM73 Temperature Sensor. 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:

  • lm73

 

Linux Source Files

(...)

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支持軟件

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

Evaluation Board Software for Hardware Monitors and Digital Temperature Sensors
支持的產品和硬件

支持的產品和硬件

產品
數字溫度傳感器
LM63 — 1 條遠程和本地通道溫度傳感器，帶風扇控制功能 LM64 — 帶風扇控制功能和 5 個 GPIO 的遠程和本地溫度傳感器 LM71 — 具有 SPI 接口的 ±1.5°C 溫度傳感器 LM71-Q1 — 具有 SPI 接口的汽車級 ±1.5°C 溫度傳感器 LM73 — 具有 I2C/SMBus 接口的 ±1°C 溫度傳感器 LM86 — 具有 SMBus 接口的 ±0.75°C 遠程和本地溫度傳感器 LM89 — 具有 SMBus 接口和 2 個地址用于總線共享的 ±0.75°C 遠程和本地溫度傳感器 LM90 — 具有 SMBus 接口的遠程和本地溫度傳感器 LM93 — 具有 2 條遠程和 1 條本地通道的溫度傳感器，帶硬件監(jiān)控器和 16 個電源電壓監(jiān)控器 LM95010 — 具有 SensorPath 接口的 ±2°C 溫度傳感器 LM95071 — 具有 SPI 接口的 ±1°C 溫度傳感器 LM95221 — 具有 β 補償、SMBus 和 I2C 接口的 ±3°C 雙路遠程和本地溫度傳感器 LM95231 — 采用 TruTherm 技術且具有 SMBus 接口的雙路遠程和本地溫度傳感器 LM95235 — 具有 SMBus 接口、采用 β 補償技術、適用于 65/90nm 處理器二極管的 ±0.75°C 遠程和本地溫度傳感器 LM95235-Q1 — 采用 TruTherm 技術且具有 SMBus 接口的汽車級 ±2°C 遠程和本地溫度傳感器 LM96000 — 硬件監(jiān)控器，帶風扇控制功能和 6 個電源電壓監(jiān)控器 LM96080 — 1 條本地通道溫度傳感器，帶風扇轉速控制功能和電源電壓監(jiān)控器 LM96163 — 具有 1 條遠程和本地通道的溫度傳感器，帶 β 補償和風扇控制功能 LM99 — 采用 TruTherm 技術且具有 SMBus 接口的遠程和本地溫度傳感器
支持軟件

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 (...)
支持的產品和硬件

支持的產品和硬件

產品
數字溫度傳感器
LM63 — 1 條遠程和本地通道溫度傳感器，帶風扇控制功能 LM64 — 帶風扇控制功能和 5 個 GPIO 的遠程和本地溫度傳感器 LM71 — 具有 SPI 接口的 ±1.5°C 溫度傳感器 LM71-Q1 — 具有 SPI 接口的汽車級 ±1.5°C 溫度傳感器 LM73 — 具有 I2C/SMBus 接口的 ±1°C 溫度傳感器 LM75A — 具有 I2C/SMBus 接口的 2C 業(yè)界通用溫度傳感器 LM86 — 具有 SMBus 接口的 ±0.75°C 遠程和本地溫度傳感器 LM89 — 具有 SMBus 接口和 2 個地址用于總線共享的 ±0.75°C 遠程和本地溫度傳感器 LM90 — 具有 SMBus 接口的遠程和本地溫度傳感器 LM93 — 具有 2 條遠程和 1 條本地通道的溫度傳感器，帶硬件監(jiān)控器和 16 個電源電壓監(jiān)控器 LM95010 — 具有 SensorPath 接口的 ±2°C 溫度傳感器 LM95071 — 具有 SPI 接口的 ±1°C 溫度傳感器 LM95172-Q1 — 具有 SPI 接口且支持 200°C 溫度的汽車級 ±1°C 溫度傳感器 LM95214 — 具有 SMBus 接口的 ±2°C 四路遠程和本地溫度傳感器 LM95221 — 具有 β 補償、SMBus 和 I2C 接口的 ±3°C 雙路遠程和本地溫度傳感器 LM95231 — 采用 TruTherm 技術且具有 SMBus 接口的雙路遠程和本地溫度傳感器 LM95233 — 采用 TruTherm 技術且具有 SMBus 接口的 ±2°C 雙路遠程和本地溫度傳感器 LM95234 — 采用 TruTherm 技術且具有 SMBus 接口的 ±2°C 四路遠程和本地溫度傳感器 LM95235 — 具有 SMBus 接口、采用 β 補償技術、適用于 65/90nm 處理器二極管的 ±0.75°C 遠程和本地溫度傳感器 LM95235-Q1 — 采用 TruTherm 技術且具有 SMBus 接口的汽車級 ±2°C 遠程和本地溫度傳感器 LM95241 — 具有 β 補償、SMBus 和 I2C 的 ±1.25°C 雙路遠程和本地溫度傳感器 LM95245 — 具有 SMBus 接口、采用 β 補償技術、適用于 45nm 處理器二極管的 ±0.75°C 遠程和本地溫度傳感器 LM96000 — 硬件監(jiān)控器，帶風扇控制功能和 6 個電源電壓監(jiān)控器 LM96080 — 1 條本地通道溫度傳感器，帶風扇轉速控制功能和電源電壓監(jiān)控器 LM96163 — 具有 1 條遠程和本地通道的溫度傳感器，帶 β 補償和風扇控制功能 LM99 — 采用 TruTherm 技術且具有 SMBus 接口的遠程和本地溫度傳感器
精密 ADC
ADC128D818 — 具有溫度傳感器、內部/外部電壓基準和 I2C 接口的 12 位、82SPS、8 通道 Δ-Σ ADC
仿真模型

LM73 IBIS Model

SNOM464.ZIP (41 KB) - IBIS Model
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封裝 引腳 CAD 符號、封裝和 3D 模型
SOT-23-THN (DDC) 6 Ultra Librarian

訂購和質量

包含信息：
  • RoHS
  • REACH
  • 器件標識
  • 引腳鍍層/焊球材料
  • MSL 等級/回流焊峰值溫度
  • MTBF/時基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續(xù)可靠性監(jiān)測
包含信息：
  • 制造廠地點
  • 封裝廠地點

支持和培訓

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