宝星微科技原装现货

MCP9808T-E/MS

Microchip Technology Inc.的MCP9808数字温度传感器将-20°C和+100°C之间的温度转换为±0.25°C/±0.5°C(典型/最大)精度的数字单词。

MCP9808带有用户可编程寄存器，为温度传感应用提供了灵活性。该寄存器允许用户可选择的设置，如关机或低功耗模式，以及温度警报窗口限制和临界输出限制的规范。当温度变化超过指定的边界限制时，MCP9808输出警报信号。

用户可以选择将警报输出信号极性设置为用于温控器操作的主动低或主动高比较器输出，或用于基于微处理器的系统的温度警报中断输出。警报输出也可以配置为仅为临界温度输出。

该传感器有一个工业标准400千赫，2线，SMBus/I2C兼容串行接口，允许多达8或16个传感器控制与一个串行总线(见表3-2的可用地址代码)。这些功能使MCP9808成为复杂，多区域，温度监测应用的理想选择。

技术参数

宝星微科技原装现货

MCP9808T-E/MS

Microchip Technology Inc.’s MCP9808 digital temperature sensor converts temperatures between -20°C and +100°C to a digital word with ±0.25°C/±0.5°C (typical/maximum) accuracy. 

The MCP9808 comes with user-programmable registers that provide flexibility for temperature sensing applications. The registers allow user-selectable settings such as Shutdown or Low-Power modes and the specification of temperature Alert window limits and critical output limits. When the temperature changes beyond the specified boundary limits, the MCP9808 outputs an Alert signal. 

The user has the option of setting the Alert output signal polarity as an active-low or activehigh comparator output for thermostat operation, or as a temperature Alert interrupt output for microprocessorbased systems. The Alert output can also be configured as a critical temperature output only. 

This sensor has an industry standard 400 kHz, 2-wire, SMBus/I2C compatible serial interface, allowing up to eight or sixteen sensors to be controlled with a single serial bus (see Table 3-2 for available Address codes). These features make the MCP9808 ideal for sophisticated, multi-zone, temperature-monitoring applications.

Typical Applications 

• General Purpose 

• Industrial Applications 

• Industrial Freezers and Refrigerators 

• Food Processing • Personal Computers and Servers 

• PC Peripherals 

• Consumer Electronics 

• Handheld/Portable Devices

Features

• Accuracy: - ±0.25 (typical) from -40°C to +125°C - ±0.5°C (maximum) from -20°C to 100°C - ±1°C (maximum) from -40°C to +125°C 

• User-Selectable Measurement Resolution: - +0.5°C, +0.25°C, +0.125°C, +0.0625°C 

• User-Programmable Temperature Limits: - Temperature Window Limit - Critical Temperature Limit 

• User-Programmable Temperature Alert Output 

• Operating Voltage Range: 2.7V to 5.5V 

• Operating Current: 200 µA (typical) • Shutdown Current: 0.1 µA (typical) 

• 2-wire Interface: I2C™/SMBus Compatible • Available Packages: 2x3 DFN-8, MSOP-8