AOZ1380DI

ALPHA & OMEGA SEMICONDUCTOR AOZ1380DI USB Type-C PD 20mΩ Sink and 39mΩ Source Combo 2-in-1 Protection Switches General Description AOZ1380DI integrates two back-to-back power switches and control circuitry into one single package to provide all the functionality and protection needed for sourcing and sinking current through a USB Type-C port with PD capability. The device can sink current from the Type-C port through a backto-back MOSFET with only 20mΩ ON resistance from VBUS to VCHG pin. The VBUS operating range is from 3.4V to 22V under sink mode with absolute maximum rating of 28V on both VBUS and VCHG pins. There is under-voltage lockout (UVLO) and over-voltage lockout (OVLO) on VBUS. The sink switch has an active low enable input to support dead battery operation and its soft-start is adjustable through an external capacitor through the SS pin. AOZ1380DI also offers a current-sourcing path from 5V power supply to VBUS through a separate back-to-back MOSFET with 39mΩ ON resistance. The input operating range at V5V pin is from 3.4V to 5.5V. The sourcing switch is also protected by UVLO and OVLO. There is internal soft-start to control inrush current. The current limit can be adjusted from 500mA to 3.5A with an external resistor. The device has short circuit protection that shuts off the switch quickly to prevent input droop and system brown out. The sourcing switch also features a FON pin for fast turn-on capability to support the Fast Role Swap (FRS) function. AOZ1380DI...