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

LM73-Q1

現行

具有 2 線介面的 11 至 14 位元數位溫度感測器

立即訂購
產品規格表

LM73-Q1

現行
產品規格表 立即訂購

產品詳細資料

Local sensor accuracy (max) 1.45 Type Local Operating temperature range (°C) -40 to 125 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) (Bits) 14 Remote channels (#) 0 Addresses 6 Rating Automotive
Local sensor accuracy (max) 1.45 Type Local Operating temperature range (°C) -40 to 125 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) (Bits) 14 Remote channels (#) 0 Addresses 6 Rating Automotive
SOT-23-THN (DDC) 6 8.12 mm² 2.9 x 2.8
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results
    • LM73-Q1 Temperature grade 1: –40°C to 125°C
    • LM73-Q1 HBM ESD Classification Level 2
    • LM73-Q1 CDM ESD Classification Level C6
  • 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
  • Temperature Accuracy: ±1.45°C (Maximum)
  • Temperature Range: –40°C to 125°C
  • Conversion Time
    • 11-Bit (0.25°C): 14 ms (Maximum)
    • 14-Bit (0.03125°C): 112 ms (Maximum)
  • Operating Supply Current: 320 µA (Typical)
  • Shutdown Supply Current: 1.9 µA (Typical)
  • Resolution: 0.25°C to 0.03125°C
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results
    • LM73-Q1 Temperature grade 1: –40°C to 125°C
    • LM73-Q1 HBM ESD Classification Level 2
    • LM73-Q1 CDM ESD Classification Level C6
  • 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
  • Temperature Accuracy: ±1.45°C (Maximum)
  • Temperature Range: –40°C to 125°C
  • Conversion Time
    • 11-Bit (0.25°C): 14 ms (Maximum)
    • 14-Bit (0.03125°C): 112 ms (Maximum)
  • Operating Supply Current: 320 µA (Typical)
  • Shutdown Supply Current: 1.9 µA (Typical)
  • Resolution: 0.25°C to 0.03125°C

The LM73-Q1 is a digital output temperature sensor featuring an integrated incremental Delta-Sigma ADC. The LM73-Q1 communicates with a two-wire interface that is compatible with SMBus and I2C interfaces, and the host can query the LM73-Q1 at any time to read temperature.

The LM73-Q1 operates over a wide temperature range (–40°C to 125°C) and provides ±1.45°C accuracy from –10°C to 80°C. The LM73-Q1 includes four selectable resolution options that allow the temperature conversion time and sensitivity to be adjusted for optimal performance. The LM73-Q1 defaults to 11-bit mode (0.25°C/LSB), and will measure temperature in a maximum time of 14 ms, making it ideal for applications that require temperature data very soon after power-up. In its 14-bit maximum resolution mode (0.03125°C/LSB), the LM73-Q1 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, the LM73-Q1 has a time-out feature that will automatically reset the clock and data lines, if these lines are held low for an extended period of time. This prevents a bus lock-up condition without requiring host processor intervention.

The LM73-Q1 is a digital output temperature sensor featuring an integrated incremental Delta-Sigma ADC. The LM73-Q1 communicates with a two-wire interface that is compatible with SMBus and I2C interfaces, and the host can query the LM73-Q1 at any time to read temperature.

The LM73-Q1 operates over a wide temperature range (–40°C to 125°C) and provides ±1.45°C accuracy from –10°C to 80°C. The LM73-Q1 includes four selectable resolution options that allow the temperature conversion time and sensitivity to be adjusted for optimal performance. The LM73-Q1 defaults to 11-bit mode (0.25°C/LSB), and will measure temperature in a maximum time of 14 ms, making it ideal for applications that require temperature data very soon after power-up. In its 14-bit maximum resolution mode (0.03125°C/LSB), the LM73-Q1 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, the LM73-Q1 has a time-out feature that will automatically reset the clock and data lines, if these lines are held low for an extended period of time. This prevents a bus lock-up condition without requiring host processor intervention.

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

您可能會感興趣的類似產品

open-in-new 比較替代產品
引腳對引腳的功能與所比較的產品相同
LM73 現行 具 I2C/SMBus 介面的 ±1°C 溫度感測器 Commercial version of the LM73-Q1
功能相同，但引腳輸出與所比較的產品不同
TMP75-Q1 現行 採用工業標準 LM75 外形尺寸和針腳配置且具有 I2C/SMBus 介面的汽車溫度感測器 Lower power (85 µA) I²C alternative with support for up to 8 device addresses, NIST traceable
功能相似於所比較的產品
TMP102-Q1 現行 採用 2.56mm2 封裝且具有 I2C/SMBus 的車用 ±2°C 1.4V 至 3.6V 數位溫度感測器 Lower cost, smaller size and lower power alternative

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 LM73-Q1 2.7-V, SOT-23, 11- to 14-Bit Digital Temperature Sensor With 2-Wire Interface datasheet PDF | HTML 2016年 12月 6日
Technical article How to maximize powertrain efficiency and reliability with high-accuracy temperatu PDF | HTML 2021年 5月 10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)。

封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOT-23-THN (DDC) 6 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