The WS4683C is a Type-C PD load switch with programable precision current limit. WS4683C has V_IN under voltage lockout, output over voltage protection, reverse current protection, over current protection and over temperature protection.

The over current protection threshold is set by an external resistor from ILIM pin, ranged from 400 mA to 3.3A. The output current will be clamped at threshold if load current hit the current limit. WS4683C will assert/FLT pin to low with an 11 ms deglitch time after over current protection triggers.

FO pin is used to program the power on slow rate for V_BUS, which will be 2 ms soft start if FO is pulled to GND. Such function can be disabled by pulling FO pin to high. Fast RCP recovery circuit is also implemented, with the help of witch the switch will turn on within 20 μs once it exits reverse condition.

WS4683C has a 2.05 x 2.05 mm 16-bump WLCSP package. Standard product is Pb-Free and Halogen-Free.

Applications:
– Laptops, Ultra-Books, and Desktops
– USB PDs or Type-C Ports / Hubs
– Tablets and Smart Phones