The XPD736 is an integrated USB Type-C, USB Power Delivery (PD) 2.0/3.0 and PPS, QC3.0/2.0 CLASS A fast charge protocol, Huawei FCP/SCP Fast charge protocol, Samsung AFC Fast Charge Protocol, BC1.2 DCP, and Apple devices 2.4A Multi-function USB Type-C and Type-A dual-port controller for charging specifications.
    The built-in Type-C protocol of XPD736 can support the automatic wake-up of Type-C device insertion, intelligent identification of the forward plug and reverse plug, and achieve connection. The XPD736 integrated PD protocol supports bidirectional markup coding (BMC), a physical layer protocol and protocol engine that integrates hardware without software involvement in codec.
    When one of the Type-C and Type-A ports is connected to the device, both the Type-C and Type-A ports can implement independent fast charge functions. When both Type-C and Type-A are connected to the device, the XPD736 will reduce the output voltage to 5V to supply power to the device. In particular, when the Type-A port has been connected to the Apple charging cable but is not connected to the iPhone, the Type-C port still has the fast charge function. When used as a charger, the charging cable will often be connected to the charger. The XPD736 perfectly solves the problem of fast charging when Type-A and Type-C ports are connected to charging cables. In addition, the Type-A port full shutdown current threshold is as low as 10mA, which can support small current charging of smart wearable devices. 
    The XPD736 dynamically adjusts voltage through a Sink/Source current source connected to an AC-DC or DC-DC feedback pin. Whether it is starting or regulating the voltage process, it has a soft start function to achieve a smooth voltage transition.
    The XPD736 has a variety of built-in protection mechanisms to ensure device safety: including dynamic overvoltage/undervoltage/overcurrent protection (protection points can be proportionally adjusted according to the operating voltage/current requested by the device); Start monitoring (Port voltage is monitored for safety before VBUS output).
    XPD736 Integrated 20mΩ VBUS channel power switch tube, built-in VPWR and VBUS dual discharge path, saving peripheral devices, in the event of an error can quickly shut down the output and restore to a safe state.
    The XPD736 is packaged in TSSOP16 and has a simple periphery, which makes it easy to pass the USB PD certification test.