AAT4618 Datasheet PDF

GENERAL DESCRIPTION

An integrated current-limiting circuit protects the input supply from large currents which potentially cause the supply to fall out of regulation. Due to its low RDS(ON), the AAT4618 can be used to control loads that require up to 500mA even while operating at high ambient temperatures. The ultra fast current-limit response to a sudden short circuit is a mere 400ns which reduces the requirements of local supply bypassing. An open drain FAULT flag signals an over current or over temperature condition after a 4ms timeout. Quiescent current is a low 10µA and in shutdown mode, the supply current decreases to less than 1µA. The AAT4618 is available in a 5 pin SOT-23, and an 8 pin SC70JW specified over a -40 to 85°C temperature range. The AAT4600 Series is a family of adjustable and fixed SmartSwitch™ products with a range of current handling capabilities. Available are single versions with adjustable current limit (AAT4610, AAT4601) as well as fixed current limit (AAT4625), and dual versions with fixed current limit (AAT4626, AAT4670).