ACE345

Adjustable USB Load Current Switch

VER 1.2

7

Current limiting

The current limit ensures that the current through the switch doesn't exceed a maximum value while not

limiting at less than a minimum value. The current at which the parts will limit is adjustable through the

selection of an external resistor connected to ISET. Information for selecting the resistor is found in the

Application Info section. The ACE345 has no current limit blanking period so it will remain in a constant

current state until the ON pin is deactivated or the thermal shutdown turns-off the switch.

Thermal Shutdown

The thermal shutdown protects the die from internally or externally generated excessive temperatures.

During an over-temperature condition the switch is turned-off. The switch automatically turns-on again if

temperature of the die drops below the threshold temperature.

Packing Information

SOT-23-5