LTC4380HMS-4#PBF

LTC4380 is a low quiescent current surge stopper protects loads from high voltage transients. Overvoltage protection is provided by clamping the gate voltage of an external N-channel MOSFET to limit the output voltage to a safe value during overvoltage events such as load dump in automobiles. An internal multiplier generates a TMR pin current proportional to VDS and ID, so that operating time in both overcurrent and overvoltage conditions is limited in accordance with MOSFET stress. It is widely used in application such as automotive/avionic/industrial surge protection, hot swap, live insertion, high side switch for battery powered systems, automotive load dump protection etc.

• Low quiescent current is 8µA typ
• Wide operating voltage range is 4V to 72V
• Reverse input protection to –60V
• Adjustable turn-on threshold
• Adjustable fault timer with MOSFET stress acceleration
• Controls N-channel MOSFET, latchoff and retry options
• Low retry duty cycle during faults
• Operating temperature is -40°C to 125°C
• Packaging style is 10-lead plastic MSOP

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