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數位溫度感測器

TMP423-Q1

現行

AEC-Q100 車用 3 通道遠端溫度感測器

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產品規格表

TMP423-Q1

現行
產品規格表 立即訂購

產品詳細資料

Local sensor accuracy (max) 1.5 Type Remote Operating temperature range (°C) -40 to 125 Supply voltage (min) (V) 2.7 Interface type I2C, SMBus Supply voltage (max) (V) 5.5 Features One-shot conversion Supply current (max) (µA) 38 Temp resolution (max) (bps) 12 Remote channels (#) 3 Addresses 2 Rating Automotive
Local sensor accuracy (max) 1.5 Type Remote Operating temperature range (°C) -40 to 125 Supply voltage (min) (V) 2.7 Interface type I2C, SMBus Supply voltage (max) (V) 5.5 Features One-shot conversion Supply current (max) (µA) 38 Temp resolution (max) (bps) 12 Remote channels (#) 3 Addresses 2 Rating Automotive
SOT-23 (DCN) 8 4.64 mm² 2.9 x 1.6
  • AEC-Q100 Qualified with the Following Results
    • Temperature Grade 1: –40°C to +125°C
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C5
  • SOT23-8 Package
  • ±1°C Remote Diode Sensor (Maximum)
  • ±1.5°C Local Temperature Sensor (Maximum)
  • Series Resistance Cancellation
  • n-Factor Correction
  • Two-Wire I2C or SMBus™ Compatible Serial Interface
  • Multiple Interface Addresses
  • Diode Fault Detection
  • RoHS Compliant and No Sb/Br
  • AEC-Q100 Qualified with the Following Results
    • Temperature Grade 1: –40°C to +125°C
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C5
  • SOT23-8 Package
  • ±1°C Remote Diode Sensor (Maximum)
  • ±1.5°C Local Temperature Sensor (Maximum)
  • Series Resistance Cancellation
  • n-Factor Correction
  • Two-Wire I2C or SMBus™ Compatible Serial Interface
  • Multiple Interface Addresses
  • Diode Fault Detection
  • RoHS Compliant and No Sb/Br

The TMP421-Q1, TMP422-Q1, and TMP423-Q1 devices are single, dual, and triple remote, automotive-qualified temperature sensor monitors with a built-in local temperature sensor. The remote temperature sensor diode-connected transistors are typically low-cost, NPN- or PNP-type transistors or diodes that are an integral part of microcontrollers, microprocessors, or field-programmable gate arrays (FPGAs).

Remote accuracy is ±1°C for multiple device manufacturers, with no calibration needed. The two-wire serial interface accepts SMBus write byte, read byte, send byte, and receive byte commands to configure the device.

The TMP421-Q1, TMP422-Q1, and TMP423-Q1 include series resistance cancellation, programmable non-ideality factor, wide remote temperature measurement range (up to +150°C), and diode fault detection.

The TMP421-Q1, TMP422-Q1, and TMP423-Q1 are all available in an 8-pin SOT-23 package.

The TMP421-Q1, TMP422-Q1, and TMP423-Q1 devices are single, dual, and triple remote, automotive-qualified temperature sensor monitors with a built-in local temperature sensor. The remote temperature sensor diode-connected transistors are typically low-cost, NPN- or PNP-type transistors or diodes that are an integral part of microcontrollers, microprocessors, or field-programmable gate arrays (FPGAs).

Remote accuracy is ±1°C for multiple device manufacturers, with no calibration needed. The two-wire serial interface accepts SMBus write byte, read byte, send byte, and receive byte commands to configure the device.

The TMP421-Q1, TMP422-Q1, and TMP423-Q1 include series resistance cancellation, programmable non-ideality factor, wide remote temperature measurement range (up to +150°C), and diode fault detection.

The TMP421-Q1, TMP422-Q1, and TMP423-Q1 are all available in an 8-pin SOT-23 package.

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類型 標題 日期
* Data sheet TMP42x-Q1 ±1°C Remote and Local Temperature Sensor datasheet PDF | HTML 2016年 11月 29日
Application brief How to Protect Displays with the Latest Temperature Sensing Technology PDF | HTML 2021年 7月 26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

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驅動程式或資料庫

TMP421SW-LINUX — 適用於 TMP421 的 Linux 驅動程式

The Linux driver supports the TMP421 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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參考設計

TIDA-01008 — 具有溫度感測功能的光學感測背光參考設計

此參考設計可根據環境光強度調整背光亮度，以節省電力並延長 LCD 和背光使用壽命。CapTIvate 滑動觸控可根據使用者的亮度偏好進行亮度微調。LCD 顯示器對溫度的敏感需求由遠端溫度感測器進行監控，啟用過熱時會自動關機以保護系統。
Design guide: PDF
電路圖: PDF
參考設計

TIDA-01381 — 適用於 LED 頭燈的車用多通道溫度感測參考設計

此參考設計詳述如何驅動一串矩陣 LED 前照燈，測量 LED 溫度，並實作熱回折支援，此回折可在 LED 溫度上升時減少 LED 中的電流，以避免損壞 LED。此設計採用溫度感測而非負溫度係數 (NTC) 熱敏電阻，以減少元件數量，實體線數量，並減少微控制器上使用的針腳數量。TIDA-01381 應與微控制器介接，進而降低 LED 的熱回折電流。該設計的輸入級包括電磁干擾 (EMI) 及電磁相容性 (EMC) 濾波器，可直接由汽車電池供電。
Design guide: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOT-23 (DCN) 8 Ultra Librarian
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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

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