General Description

The TC650/TC651 are integrated temperature sensors and brushless DC fan speed controllers. The TC650/TC651 measure their junction temperature and control the speed of the fan based on that temperature, making them especially suited for applications in modern electronic equipment.

Temperature data is converted from the on-chip thermal sensing element and translated into a fractional fan speed from 40 to 100. A temperature selection guide in the data sheet is used to choose the low and high temperature limits to control the fan. The TC650/TC651 also include a single trip point over temperature alert (TOVER) that eliminates the need for additional temperature sensors. In addition, the TC651 features an auto fan shutdown function for additional power savings.

The TC650/TC651 are easy to use, require no software overhead and are therefore the ideal choice for implementing thermal management in a variety of systems.

Features

• Integrated Temperature Sensing and Multi-speed Fan Control

• Built-in Over Temperature Alert (TOVER)

• Temperature Proportional Fan Speed Control for

Acoustic Noise Reduction and Longer Fan Life

• Pulse Width Modulation Output Drive for Cost and Power Savings

• Solid-State Temperature Sensing

• ±1°C (Typical) Accuracy from 25°C to +70°C

• 2.8V – 5.5V Operating Range

• TC651 includes Auto Fan Shutdown

• Low Operating Current: 50µA (Typical)

Applications

• Thermal Protection For Personal Computers

• Digital Set-Top Boxes

• Notebook Computers

• Data Communications

• Power Supplies

• Projectors

TC650BEVUA属于传感器，变送器 > 温度传感器 - 温控器 - 固态。微芯科技股份有限公司制造生产的TC650BEVUA温度传感器 - 温控器 - 固态固态温控器产品是基于半导体的温度检测器件，具有双态输出，当测量温度超出固定界限或定义范围时，输出状态会相应地发生变化。此类产品包括提供预设温度阈值和可编程/可配置阈值的器件。