• 简体中文
• English

MAX6665：风扇控制器/驱动器，由工厂预置温度门限

The MAX6665 is a fully integrated thermal switch with an internal power transistor for driving a cooling fan rated up to 24V and 250mA. When the MAX6665's temperature rises above a factory-programmed threshold, the active-low FANOUT pin becomes active and powers the fan. The MAX6665 is available with factory-programmed fan activation threshold temperatures from +40°C to +70°C in 5°C increments. Accuracy of the fan activation trip point is ±1°C (typ) and ±3°C (max). The trip point's hysteresis is pin selectable to 1°C, 4°C, or 8°C. Two open-drain logic outputs indicate overtemperature con- ditions: active-low WARN is activated when the temperature is 15°C above the fan activation threshold, and OT is activated when the temperature is 30°C above the threshold. These features can be used to safely power down systems that are overheated. The MAX6665 operates from a +2.7V to +5.5V power supply, and the associated fan can be powered from 4.5V to 24V. It is available in an 8-pin SO package and operates from -40°C to +125°C.

关键特性 On-Chip 250mA Fan Switch No External Components Required Factory-Programmed Thresholds Two Overtemperature Warning Signals Pin-Selectable 1°C, 4°C, and 8°C Hysteresis Low 65µA Supply Current

功能框图 产品应用 卡槽 实验室仪表 笔记本电脑与台式计算机 PC电源 服务器

关键参数

数据手册DataSheet

订购型号