MAX6665ASA45+T

MAXIM INTEGRATED PRODUCTS  MAX6665ASA45+T  温度传感器芯片, 温度开关, 推挽, ± 1°C, -40 °C, 125 °C, NSOIC, 8 引脚

The is a fan controller/driver with factory programmed temperature threshold of 45°C in 8 pin NSOIC package. It is a fully integrated thermal switch with an internal power transistor for driving a cooling fan rated up to 24V and 250mA. The active-low FANOUT pin becomes active and power the fan when temperature of MAX6665 rises above a factory programmed threshold. Accuracy of fan activation trip point is ±1°C typical and ±3°C maximum. The trip point hysteresis is pin selectable to 1°C, 4°C, or 8°C. Two open-drain logic outputs indicate overtemperature conditions. The active-low WARN is activated when temperature is 15°C above fan activation threshold and complementary OT is activated when temperature is 30°C above threshold. These features can be used to safely power down systems that are overheated. The MAX6665 is typically used in PC power supplies, laboratory instruments and card racks.

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Supply voltage range from 2.7V to 5.5V

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Operating temperature range from -40°C to 125°C

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No external components required

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Two overtemperature warning signals

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Low supply current of 65µA

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Active-low FANOUT leakage current of 3µA