LM73
- 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)
- Operating
- 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)
- Supply Current
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.
技術資料
種類 | タイトル | 最新の英語版をダウンロード | 日付 | |||
---|---|---|---|---|---|---|
* | データシート | LM73 2.7-V, SOT-23, 11- to 14-Bit Digital Temperature Sensor With 2-Wire Interface データシート (Rev. F) | PDF | HTML | 2015年 10月 29日 | ||
アプリケーション・ノート | How to Read and Interpret Digital Temperature Sensor Output Data | PDF | HTML | 2024年 4月 12日 | |||
証明書 | UL Certificate of Compliance Vol1-Sec6 E232195 | 2018年 8月 9日 | ||||
アプリケーション・ノート | Applying I2C-Compatible Temperature Sensors in Systems With Slow Clock Edges (Rev. A) | 2013年 5月 6日 |
設計および開発
その他のアイテムや必要なリソースを参照するには、以下のタイトルをクリックして詳細ページをご覧ください。
LM73SW-LINUX — Linux ドライバ、LM73 用
Linux Mainline Status
Available in Linux Main line: Yes
Available through git.ti.com: N/A
Supported Devices:
- lm73
Linux Source Files
(...)
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 (...)
サポート対象の製品とハードウェア
製品
デジタル温度センサ
高精度 ADC
パッケージ | ピン数 | CAD シンボル、フットプリント、および 3D モデル |
---|---|---|
SOT-23-THN (DDC) | 6 | Ultra Librarian |
購入と品質
- RoHS
- REACH
- デバイスのマーキング
- リード端子の仕上げ / ボールの原材料
- MSL 定格 / ピーク リフロー
- MTBF/FIT 推定値
- 使用原材料
- 認定試験結果
- 継続的な信頼性モニタ試験結果
- ファブの拠点
- 組み立てを実施した拠点