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數位溫度感測器

TMP451

現行

具 N-Factor 和串聯 R 校正的 1.7-V 遠端和本機溫度感測器

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產品規格表

TMP451

現行
產品規格表 立即訂購

產品詳細資料

Local sensor accuracy (max) 1 Type Remote Operating temperature range (°C) -40 to 125 Supply voltage (min) (V) 1.7 Interface type I2C, SMBus Supply voltage (max) (V) 3.6 Features ALERT Supply current (max) (µA) 40 Temp resolution (max) (Bits) 12 Remote channels (#) 1 Addresses 1 Rating Catalog
Local sensor accuracy (max) 1 Type Remote Operating temperature range (°C) -40 to 125 Supply voltage (min) (V) 1.7 Interface type I2C, SMBus Supply voltage (max) (V) 3.6 Features ALERT Supply current (max) (µA) 40 Temp resolution (max) (Bits) 12 Remote channels (#) 1 Addresses 1 Rating Catalog
WSON (DQF) 8 4 mm² 2 x 2
  • ±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
  • ±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.

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.

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類型 標題 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 PDF | HTML 2024年 4月 12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
EVM User's guide TMP451EVM User ’s Guide and Software Tutorial User's Guide (Rev. A) 2019年 8月 8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)。

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
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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:

  • (...)
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支援軟體

SBOC436 — TMP451EVM Software

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產品
數位溫度感測器
TMP451 — 具 N-Factor 和串聯 R 校正的 1.7-V 遠端和本機溫度感測器 TMP451-Q1 — 具有 N 係數、濾波及串聯 R 校正功能的汽車 1.7V 遠端與本機溫度感測器
硬體開發
開發板
TMP451EVM — TMP451 1.7-V 遠端與本機溫度感測器評估模組
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支援軟體

SBOC437 — TMP451EVM Source Code

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產品
數位溫度感測器
TMP451 — 具 N-Factor 和串聯 R 校正的 1.7-V 遠端和本機溫度感測器 TMP451-Q1 — 具有 N 係數、濾波及串聯 R 校正功能的汽車 1.7V 遠端與本機溫度感測器
硬體開發
開發板
TMP451EVM — TMP451 1.7-V 遠端與本機溫度感測器評估模組
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模擬型號

TMP451 IBIS Model

SBOM836.ZIP (59 KB) - IBIS Model
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計算工具

SBOC594 — Remote Temperature Sensor Calibration Tool

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產品
數位溫度感測器
TMP400 — 採用 QSSOP-16 且具 N-Factor 和串聯 R 校正的遠端和本機溫度感測器 TMP411 — 採用 MSOP-8 且具 N-Factor 和串聯 R 校正的遠端與本機溫度感測器 TMP421 — 採用 WCSP 且具 N-Factor 和串聯 R 校正的遠端與程和本機溫度感測器 TMP422 — 採用 WCSP 且具 N-Factor 和串聯 R 校正的遠端與本機溫度感測器 TMP423 — 具 N-Factor 和串聯 R 校正的三遠端和本機溫度感測器 TMP431 — 具自動 Beta、N-Factor 和串聯電阻校正的遠端和本機溫度感測器 TMP432 — 具自動 Beta、N-Factor 和串聯電阻校正的雙遠端和本機溫度感測器 TMP441 — 採用 SOT23 且具自動 Beta、N-Factor 和串聯電阻校正的多位址遠端和本機溫度感測器 TMP451 — 具 N-Factor 和串聯 R 校正的 1.7-V 遠端和本機溫度感測器 TMP461 — 具有針腳可編程匯流排位址的高準確度遠端和本機溫度感測器 TMP464 — 5 通道 (4 個遠端和 1 個本機) 高準確度遠端和本機溫度感測器 TMP468 — ±0.75⁰C 高精度多通道遠端和本機溫度感測器
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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

This reference design demonstrates the working of various functional blocks of an automatic power factor controller (PFC) used in MV/LV electrical distribution. This includes accurate measurement and computation of voltages, currents, power and power factor, display of measured parameters (...)
Design guide: PDF
電路圖: PDF
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WSON (DQF) 8 檢視選項
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