LTC4367IDD#PBF

LINEAR TECHNOLOGY  LTC4367IDD#PBF  芯片, 电源保护控制器, 60V, DFN-8

The is an overvoltage, undervoltage and reverse supply protection controller in 8 pin DFN package. This device protects applications where power supply input voltage is too high, too low or even negative. The LTC4367 performs this function by controlling gate voltages of a pair of external N channel MOSFETs to ensure that output stays within safe operating range. Two comparator inputs allow configuration of overvoltage OV and undervoltage UV set points using an external resistive divider. A shutdown pin provides external control for enabling and disabling MOSFETs as well as placing the device in low current shutdown state. A fault output indicates that GATE pin is pulling low when LTC4367 is in shutdown or input voltage is outside of UV and OV set points. The device has 32ms turn-on delay that debounces live connections and blocks 50Hz to 60Hz AC power.

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Wide operating voltage range from 2.5V to 60V

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Overvoltage protection up to 100V

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Reverse supply protection up to -40V

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Input capacitor or TVS devices are not required for most applications

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Adjustable undervoltage and overvoltage thresholds

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Low operating current of 70µA

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Low shutdown current of 5µA

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Operating ambient temperature range from -40°C to 85°C