The TMP441 and TMP442 are remote temperature monitors with a built-in local temperature sensor. 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 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 TMP441 has a single remote temperature monitor with address pins. The TMP442 has dual remote temperature monitors, and is available with two different interface addresses. All versions include automatic beta compensation (correction), series resistance cancellation, programmable non-ideality factor (-factor), wide remote temperature measurement range (up to +150°C), and diode fault detection.

The TMP441 and TMP442 are both available in an 8-lead, SOT23 package.

• SOT23-8 PACKAGE
• ±1°C REMOTE DIODE SENSOR (MAX)
• ±1°C LOCAL TEMPERATURE SENSOR (MAX)
• AUTOMATIC BETA COMPENSATION
• SERIES RESISTANCE CANCELLATION
• -FACTOR CORRECTION
• TWO-WIRE/SMBus? SERIAL INTERFACE
• MULTIPLE INTERFACE ADDRESSES
• DIODE FAULT DETECTION
• RoHS-COMPLIANT AND NO Sb/Br
• TRANSISTOR AND DIODE MODEL OPERATION
• APPLICATIONS
  • PROCESSOR/FPGA TEMPERATURE MONITORING
  • LCD/DLP?/LCOS PROJECTORS
  • SERVERS
  • CENTRAL OFFICE TELECOM EQUIPMENT
  • STORAGE AREA NETWORKS (SAN)

DLP is a registered trademark of Texas Instruments. SMBus is a trademark of Intel Corporation. All other trademarks are the property of their respective owners.

• Local sensor accuracy (Max) (+/- C)
• 1
• 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
• Supply current (Max) (uA)
• 45
• Temp resolution (Max) (bits)
• 12
• Features
• One-shot conversion
• Remote channels (#)
• 2
• Addresses
• 2
• Rating
• Catalog

TMP442的完整型号有：TMP442ADCNR、TMP442ADCNT、TMP442BDCNR、TMP442BDCNT，以下是这些产品的关键参数及官网采购报价：

TMP442ADCNR，工作温度：-40 to 125，封装：SOT-23 (DCN)-8，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网TMP442ADCNR的批量USD价格：.658（1000+）

TMP442ADCNT，工作温度：-40 to 125，封装：SOT-23 (DCN)-8，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网TMP442ADCNT的批量USD价格：.79（1000+）

TMP442BDCNR，工作温度：-40 to 125，封装：SOT-23 (DCN)-8，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网TMP442BDCNR的批量USD价格：.658（1000+）

TMP442BDCNT，工作温度：-40 to 125，封装：SOT-23 (DCN)-8，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网TMP442BDCNT的批量USD价格：.79（1000+）

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：

drivers/hwmon/tmp421.c

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 (...)