LTC4380HMS-2#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. The GATE pin can drive back-to-back MOSFETs for reverse input protection, eliminating the voltage drop and dissipation of a schottky diode solution. 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
• Wide operating voltage is 4V to 80V
• Overcurrent protection, adjustable turn-on threshold
• Reverse input protection to –60V
• Low retry duty cycle during faults
• Latch off and retry options
• Controls N-Channel MOSFET
• Adjustable fault timer with MOSFET stress acceleration
• Operating temperature is –40°C to 125°C
• Packaging style is 10-lead plastic MSOP

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party