TMP421
- SOT23-8 and DSBGA (WCSP) PACKAGES
- ±1°C REMOTE DIODE SENSOR (MAX)
- ±1.5°C LOCAL TEMPERATURE SENSOR (MAX)
- SERIES RESISTANCE CANCELLATION
- n-FACTOR CORRECTION
- TWO-WIRE/SMBus™ SERIAL INTERFACE
- MULTIPLE INTERFACE ADDRESSES
- DIODE FAULT DETECTION
- RoHS COMPLIANT AND NO Sb/Br
The TMP421, TMP422, and TMP423 are remote 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 FPGAs.
Remote accuracy is ±1°C for multiple IC 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, TMP422, and TMP423 include series resistance cancellation, programmable non-ideality factor, wide remote temperature measurement range (up to +150°C), and diode fault detection.
The TMP421, TMP422, and TMP423 are all available in a SOT23-8 package. The TMP421C is also available in a DSBGA (WCSP) package.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | ±1°C Remote and Local Temperature Sensor datasheet (Rev. C) | 2012/5/7 | |||
| 應用說明 | How to Read and Interpret Digital Temperature Sensor Output Data (Rev. A) | PDF | HTML | 2025/1/21 |
設計與開發
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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 StatusAvailable in Linux Main line: Yes
Available through git.ti.com: N/A
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SBOC594 — Remote Temperature Sensor Calibration Tool
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| DSBGA (YZD) | 8 | Ultra Librarian |
| SOT-23 (DCN) | 8 | Ultra Librarian |