LTC4365 UV, OV and Power Reverse Protection Controller Data Sheet and Application Circuit

PESD1CAN electrostatic protection SOT23-3 24V two-way

description

The LTC4365 protects applications where the power supply input voltage is likely to be too high, too low, or even negative. The device implements this protection by controlling the gate voltage of a pair of external N-channel MOSFETs to ensure that the output is within a safe operating range.

The LTC4365 can withstand voltages from -40V to 60V and has a 2.5V to 34V operating range with a current consumption of only 125μA during normal operation.

The two comparator inputs are configured with an external resistive divider to provide overvoltage (OV) and undervoltage (UV) setpoints. A shutdown pin is responsible for providing external control for enabling and disabling the MOSFET and placing the device in a low current shutdown state. A fault output provides the state of the GATE pin that is pulled low. A fault is indicated when the device is in a stopped state or the input voltage is outside the range of the UV and OV setpoints.

Characteristics

Wide operating voltage range: 2.5V to 34V
Overvoltage protection to 60V
Reverse power protection to -40V
Isolable 50Hz and 60Hz AC power supply For most applications, no input capacitor or TVS (transient voltage suppressor) is required
Adjustable Undervoltage and Overvoltage Protection Range Charge Pump Enhanced External N-Channel MOSFET
Low operating current: 125μA
Low shutdown current: 10μA
Fault Status Output in a Compact 8-Pin 3mm x 2mm DFN Package and TSOT-23 (ThinSOT) Package

application

Portable instrumentation industrial automation laptop car

LTC4365 Typical Application Circuit

LTC4365 Typical Application Circuit

The above is part of the content, see the PDF data manual for details!

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