NCT7717U TR

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

PMIC – Thermal Management is an important element in the efficient functioning of electronic systems. It works to maintain acceptable operating temperature of an electronic device during its operation by managing the heat generated by it. The NCT7717U TR is a device that allows thermistors to be used in power management applications and monitoring of temperature. It works by integrating an adjustable resistor and a CMOS-VFSOCT (Current-Mode Frequency-Switched Output Control Technology) temperature sensing comparator. The device can be connected to an analog-to-digital converter (ADC) to control thermal factors accurately.

The multiplexer provided allows the device to switch between different thermistors according to the user requirement. This functionality is powered by the device’s voltage regulator which can be set for a desired operating range. The NCT7717U TR internal amplifier and comparator section computes the differences between the input and the reference voltage supplied. The thermal output is then provided through the DAC (Digital to Analog Converter) port. This output can be regulated by the onboard temperature sensing parameters.

The NCT7717U TR is designed for usage in Microcomputers and Processors that power computing systems, base station controllers, routers, etc. In these setups, the device detects the temperature by controlling the thermistor resistance as this resistance changes with the variation in temperature. The device can also be applied in Power-over-Ethernet (PoE) systems or Passive Power-over-Ethernet (pPoE) systems. The integrated amplifier and comparator sections along with the programmable voltage regulator help to accurately monitor temperature in such setups.

The working principle of the NCT7717u TR is quite simple. The device senses the resistance of the thermistor by passing an alternating current of known frequency through it. This frequency can be adjusted for precise measurements. The value of the restive state of the thermistor sets the comparator’s threshold to generate an output signal. The timer module blocks the output until the thermistor’s resistance reaches the threshold and thus prevents false readings. The output signal can be used to control the operating temperature and activate thermal management duties in the system.

In conclusion, the NCT7717u TR is a reliable and versatile device for temperature monitoring and controlling in electronic systems. Its advanced features and comprehensive programmability make it suitable for a wide range of power management applications and thermal management. It is designed for usage in devices such as Microcomputers, Processors, Power-over-Ethernet systems, Passive Power-over-Ethernet systems, etc. Its simple working principle combined with a range of functions makes it an ideal choice for reliable temperature monitoring.

The specific data is subject to PDF, and the above content is for reference