LTC4366
FEATURES n Rugged Floating Topology n Wide Operating Voltage Range: 9V to >500V n Adjustable Output Clamp Voltage n Controls N-Channel MOSFET n Adjustable Protection Timer n Internal 9-Second Cool-Down Timer n Shutdown IQ < 14µA n 8-Lead TSOT and 3mm × 2mm DFN Packages
APPLICATIONS n Industrial, Automotive and Avionic Surge Protection n High Voltage DC Distribution n 28V Vehicle Systems
DESCRIPTION
The LTC®4366 surge stopper protects loads from high voltage transients. By controlling the gate of an external N-channel MOSFET, the LTC4366 regulates the output during an overvoltage transient. The load may remain operational while the overvoltage is dropped across the MOSFET. Placing a resistor in the return line isolates the LTC4366 and allows it to float up with the supply; therefore, the upper limit on the output voltage depends only on the availability of high valued resistors and MOSFET ratings.
An adjustable overvoltage timer prevents MOSFET damage during the surge while an...
