TMP4719中文资料具有 N 因数和串联电阻校正的远程和本地双路 1.2V 逻辑兼容温度传感器数据手册TI规格书

描述 Description

The TMP4719 device is a high-accuracy 1°C temperature sensor with one local integrated sensor and two remote temperature sensor channels that can be connected to diode-connected transistors, such as the popular MMBT3904 NPN transistor, to replace traditional thermistors or thermocouples. The remote channels can also be connected to a substrate thermal transistor or diode integrated inside microprocessors, microcontrollers, or FPGAs to monitor the die temperature of the IC.

The TMP4719 supports series resistance cancellation, programmable non-ideality factor (η-factor), configurable temperature limits, and programmable digital filters to improve the noise immunity of the device and provide a robust design for complex thermal environment monitoring applications. The device supports I2C and SMBus communication with logic levels down to 1.2V regardless of the main supply rail, enabling interoperability with low-voltage MCUs without needing a secondary low-voltage supply or a bus level shifter.

特性 Features

Supply range: 1.62V to 5.5V

Wide operating range: –40°C to 125°C

Remote channel accuracy: 0.8°C

Resolution: 12-bit (0.0625°C)



Local channel accuracy: 1°C

Resolution: 8-bit (1°C)



Support I2C and SMBus interface

Low power consumption

Additional features for improved temperature measurement accuracy:

Diode non-ideality factor (η-factor) correction

Series resistance cancellation

Programmable digital filter



Remote diode fault detection

1.2V logic-compatible input thresholds independent of supply

Footprint compatible with the TMP432