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.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | ±1°C Remote and Local Temperature Sensor 数据表 (Rev. C) | 2012-5-7 | |||
| 应用手册 | 如何读取和解释数字温度传感器输出数据 (Rev. A) | PDF | HTML | 英语版 (Rev.A) | PDF | HTML | 2025-1-29 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
TMP421SW-LINUX — 用于 TMP421 的 Linux 驱动程序
Linux 驱动程序支持 TMP421 系列远程和本地温度传感器。Linux 驱动程序支持通过 I2C 总线和接口与硬件监测子系统进行通信。
Linux 主线状态在 Linux 主线中提供：是
可通过 git.ti.com 获取：不适用
- tmp421
- tmp422
- tmp423
- tmp441
- tmp442
与该器件关联的文件为：
- drivers/hwmon/tmp421.c
- Documentation/hwmon/tmp421
启用驱动程序支持
使用“make (...)
SBOC594 — Remote Temperature Sensor Calibration Tool
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| DSBGA (YZD) | 8 | Ultra Librarian |
| SOT-23 (DCN) | 8 | Ultra Librarian |