TC74A4-5.0VCT传感器变送器的温度传感器-模拟数字输出规格书PDF中文资料

TC74A4-5.0VCT属于传感器变送器的温度传感器-模拟数字输出。由美国微芯科技公司制造生产的TC74A4-5.0VCT温度传感器 - 模拟和数字输出模拟和数字输出温度传感器可用于测量环境热能量。特征包括传感器类型、本地感测温度、远程感测温度、输出类型、电源电压和分辨率。传感器类型为模拟本地/远程/红外、模拟数字、本地/远程、数字本地/远程/红外或内部，感应温度范围为 -55°C 至 200°C。

General Description

The TC74 is a serially accessible, digital temperature sensor particularly suited for low cost and small form factor applications. Temperature data is converted from the onboard thermal sensing element and made available as an 8-bit digital word.

Communication with the TC74 is accomplished via a 2-wire SMBus/I2C compatible serial port. This bus also can be used to implement multi-drop/multi-zone monitoring. The SHDN bit in the CONFIG register can be used to activate the low power Standby mode. Temperature resolution is 1°C. Conversion rate is a nominal 8 samples/sec. During normal operation, the quiescent current is 200 µA (typ). During standby operation, the quiescent current is 5 µA (typ).

Small size, low installed cost and ease of use make the TC74 an ideal choice for implementing thermal management in a variety of systems.

特性 Features

• Digital Temperature Sensing in SOT-23-5 or TO-220 Packages

• Outputs Temperature as an 8-Bit Digital Word

• Simple SMBus/I2C™ Serial Port Interface

• Solid-State Temperature Sensing:

- ±2°C (max.) Accuracy from +25°C to +85°C

- ±3°C (max.) Accuracy from 0°C to +125°C

• Supply Voltage of 2.7V to 5.5V

• Low Power:

- 200 µA (typ.) Operating Current

- 5 µA (typ.) Standby Mode Current

Applications

• Thermal Protection for Hard Disk Drives and other PC Peripherals

• PC Card Devices for Notebook Computers

• Low Cost Thermostat Controls

• Power Supplies

• Thermistor Replacement