NCT210中文资料2-Channel Digital Thermometer with Under/Overtemperature Alarm数据手册ONSEMI规格书

描述 Description

The NCT210 is a two-channel digital thermometer and over/undertemperature alarm, intended for use in personal computers and other systems requiring thermal monitoring and management. The device can measure the temperature of a microprocessor using a diode-connected PNP transistor, which can be provided on-chip with the processor, or can be a low cost discrete NPN/PNP device, such as the 2N3904/2N3906. A novel measurement technique cancels out the absolute value of the transistor's base emitter voltage so that no calibration is required. The second measurement channel measures the output of an on-chip temperature sensor to monitor the temperature of the device and its environment. The NCT210 commumicates over a two-wire serial interface compatible with SMBus standards. Under/overtemperature limits can be programmed into the device over the serial bus, and an /ALERT output signals when the on-chip or remote temperature is out of range. This output can be used as an interrupt or as an SMBus alert.

特性 Features

Alternative to the ADM1021A
On-Chip and Remote Temperature Sensing
No Calibration Necessary
1°C Accuracy for On-Chip Sensor
3°C Accuracy for the Remote Sensor
Programmable Over/Undertemperature Limits
Programmable Conversion rate
2-Wire SMBus Serial Interface
Supports System Management Bus (SMBus) Alert
1 µA Standby Current
3.0 V to 5.5 V Supply

应用 Application

Thermal ManagementTemperature Sensing
Smart Electric MetersDSL Line Cards

简介

NCT210属于传感器变送器的温度传感器-模拟数字输出。由制造生产的NCT210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。