GENERAL DESCRIPTION
An integrated current-limiting circuit protects the input supply against large currents which may cause the supply to fall out of regulation. Reverse current blocking is provided to protect the load switch from reverse current potentials while the device is shutdown. Current limit threshold is programmed with a resistor from SET to ground and may be adjusted for levels up to 1.6A. The ultra-fast current limit response to a sudden short circuit is a mere 1μs which reduces the requirements of local supply bypassing. An open drain FAULT flag signals an over-current or over-temperature condition after a 4ms blanking time to prevent false reporting. Quiescent current is a low 10μA and the supply current decreases to less than 1μA in shutdown mode. The AAT4614 is offered in the small Pb-free, 8-pin SC70JW, SOT23-6 and SOT23-5 packages, and is specified for operation over the -40°C to +85°C ambient temperature range. Adjustable Current Limited Load Switch with Fault Flag F...
Analogic Corporation
