支援軟體
TMP451
- ±1°C Accuracy for Local and Remote Diode Sensors
- 0.0625°C Resolution for Local and Remote Channels
- 1.7-V to 3.6-V Supply and Logic Voltage Range
- 27-µA Operating Current, 3-µA Shutdown Current
- Series Resistance Cancellation
- η-Factor and Offset Correction
- Programmable Digital Filter
- Diode Fault Detection
- Two-Wire and SMBus™ Serial Interface
- 8-Lead WSON (WDFN) Package
The TMP451 device is a high-accuracy, low-power remote temperature sensor monitor with a built-in local temperature sensor. The remote temperature sensors are typically low-cost discrete NPN or PNP transistors, or substrate thermal transistors or diodes that are integral parts of microprocessors, microcontrollers, or FPGAs. The temperature is represented as a 12-bit digital code for both the local and remote sensors, giving a resolution of 0.0625°C. The temperature accuracy is ±1°C (maximum) in the typical operating range for the local and the remote temperature sensors. The two-wire serial interface accepts the SMBus communication protocol.
Advanced features such as series resistance cancellation, programmable nonideality factor (η-factor), programmable offset, programmable temperature limits, and a programmable digital filter are combined to provide a robust thermal monitoring solution with improved accuracy and noise immunity.
The TMP451 device is ideal for high-accuracy temperature measurements in multiple locations and in a variety of automotive subsystems. The device is specified for operation over a supply voltage range of 1.7 V to 3.6 V and a temperature range of –40°C to 125°C.
技術文件
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檢視所有 6 | 重要文件 | 類型 | 標題 | 格式選項 | 日期 |
|---|---|---|---|---|
| * | Data sheet | TMP451 ±1°C Remote and Local Temperature Sensor With η-Factor and Offset Correction, Series-Resistance Cancellation, and Programmable Digital Filter datasheet (Rev. A) | PDF | HTML | 2014年 9月 29日 |
| Application note | How to Read and Interpret Digital Temperature Sensor Output Data (Rev. A) | PDF | HTML | 2025年 1月 21日 | |
| Application brief | Improving System Reliability in Auto and Ind. Cameras w/ AccurateTemp. Sensing | PDF | HTML | 2022年 1月 3日 | |
| Application note | Remote Temperature Transistor Sensor Selection Guide | PDF | HTML | 2021年 3月 24日 | |
| Application note | Optimizing Remote Diode Temperature Sensor Design (Rev. A) | 2019年 12月 18日 | ||
| Application brief | High-Performance Processor Die Temperature Monitoring (Rev. A) | 2019年 10月 17日 |
設計與開發
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開發板
TMP451EVM — TMP451 1.7-V 遠端與本機溫度感測器評估模組
The TMP451EVM is an evaluation module that is used to fully evaluate the TMP451, a 1.8V remote temperature sensor. The TMP451 has the capability of measuring remote temperatures and on-chip temperatures. The TMP451 is an integrated circuit that provides 1˚C accuracy temperature measurement with (...)
使用指南: PDF
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:
- (...)
支援軟體
SBOC437 — TMP451EVM Source Code
支援產品和硬體
計算工具
SBOC594 — Remote Temperature Sensor Calibration Tool
支援產品和硬體
參考設計
TIDA-00737 — 適用於自動功率因數控制器的電容組控制和 HMI 子系統參考設計
此參考設計展示了 MV/LV 配電中使用的各種自動功率因數控制器 (PFC) 功能區塊運作。其中包括準確的電壓、電流、功率和功率因數測量與運算、使用四位數七段顯示器顯示測量參數、使用 LED 顯示警報和狀態指示、切換用於驅動接觸器或閘流管以切換電容器組的切換輸出，以及使用我們產品組合中的各種產品監控本機和遠端溫度。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WSON (DQF) | 8 | Ultra Librarian |
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
- 進行中的可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點