MAX6670AUB60+

MAXIM INTEGRATED PRODUCTS  MAX6670AUB60+  温度传感器芯片, 温度开关, 漏极开路, ± 1°C, -40 °C, 125 °C, µMAX, 10 引脚

The is a remote temperature switch with integrated fan controller/driver in 10 pin µMAX package. This remote junction thermal switch with an internal power transistor drives a cooling fan rated for supply voltages up to +12V and 250mA. It measures temperature of an external P-N junction typically a diode connected transistor and turn on fan power switch when remote temperature rises above factory programmed threshold. The MAX6670 is simple drop-in fan control solutions for variety of systems due to self contained and requiring no software development. It has an open drain active-low WARN output that goes active when remote temperature exceeds factory programmed fan activation threshold by +15°C. The device also has an open-drain active-low OT output that goes active when remote temperature exceeds factory programmed threshold by +30°C. It is used in network switches, PC power supplies, laboratory instruments, card racks, temperature alarms and fan controls.

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Power supply voltage range from 3V to 3.6V

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

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Temperature threshold accuracy of ±1°C for remote junction temperatures from 40°C to 75°C

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No calibration required

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Pin selectable 4°C, 8°C or 12°C hysteresis

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Factory programmed temperature threshold of 60V from 40°C to 75°C

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Overtemperature warning signals

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Average supply current of 110µA and operating current of 400µA

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Active-low FORCEON fan control input allows fan to be driven externally regardless of temperature