产品详情

Local sensor accuracy (max) 2.5 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) (Bits) 12 Remote channels (#) 1 Addresses 9 Rating Catalog
Local sensor accuracy (max) 2.5 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) (Bits) 12 Remote channels (#) 1 Addresses 9 Rating Catalog
DSBGA (YZD) 8 2.972025 mm² 2.295 x 1.295 SOT-23 (DCN) 8 4.64 mm² 2.9 x 1.6
  • 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
  • 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.

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.

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TMP422 正在供货 采用 WCSP 封装、具有 N 因数和串联电阻校正的双路远程和本地温度传感器 1 local channel and 2 remote channels alternative in a SOT23-8 package

技术文档

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类型 标题 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年 5月 7日
应用手册 How to Read and Interpret Digital Temperature Sensor Output Data PDF | HTML 2024年 4月 12日

设计和开发

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)。

驱动程序或库

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

支持的器件:
  • tmp421
  • tmp422
  • tmp423
  • tmp441
  • tmp442
Linux 源文件

与该器件关联的文件为:

  1. drivers/hwmon/tmp421.c
  2. Documentation/hwmon/tmp421
源文件

drivers/hwmon/tmp421.c

其他文件

Documentation/hwmon/tmp421

 

启用驱动程序支持

使用“make (...)
仿真模型

TMP4xx Family IBIS Model (Rev. A)

SBOM410A.ZIP (60 KB) - IBIS Model
计算工具

SBOC594 Remote Temperature Sensor Calibration Tool

支持的产品和硬件

支持的产品和硬件

产品
数字温度传感器
TMP400 采用 QSSOP-16 封装、具有 N 因数和串联电阻校正的远程和本地温度传感器 TMP411 采用 MSOP-8 封装、具有 N 因数和串联电阻校正的远程和本地温度传感器 TMP421 采用 WCSP 封装、具有 N 因数和串联电阻校正的远程和本地温度传感器 TMP422 采用 WCSP 封装、具有 N 因数和串联电阻校正的双路远程和本地温度传感器 TMP423 具有 N 因数和串联电阻校正的 ± 三路远程和本地温度传感器 TMP431 具有自动 β、N 因数和串联电阻校正的 ± 远程和本地温度传感器 TMP432 具有自动 β、N 因数和串联电阻校正的双通道远程和本地温度传感器 TMP441 采用 SOT23 封装、具有自动 β、N 因数和串联电阻校正的多地址远程和本地温度传感器 TMP451 具有 N 因数、滤波功能和串联电阻校正的 1.7V 远程和本地温度传感器 TMP461 具有引脚可编程总线地址的高精度远程和本地温度传感器 TMP464 5 通道(4 条远程通道和 1 条本地通道)高精度远程和本地温度传感器 TMP468 ±0.75⁰C 高精度多通道远程和本地温度传感器
封装 引脚 下载
DSBGA (YZD) 8 查看选项
SOT-23 (DCN) 8 查看选项

订购和质量

包含信息:
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息:
  • 制造厂地点
  • 封装厂地点

支持和培训

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