Summary:

CX2965AC is a multifunctional USB dual port controller that integrates USB Type-C, USB Power Delivery (PD) 3.0/2.0, PPS, QC3.0/2.0Class B fast charging protocol, Huawei FCP/SCP fast charging protocol, Samsung AFC fast charging protocol, BC1.2 DCP, and Apple device 2.4A charging specification. It provides a complete Type-C and Type-A dual port charging solution for devices such as AC-DC adapters, mobile power supplies, and car chargers.

CX2965AC specifically integrates LINK ™ Patented technology for internet communication. Through LINK ™ Interconnection function,

CX2965AC can be easily and flexibly applied in charging schemes with multiple Type-C and Type-A ports.

The built-in TYPE-C protocol of CX2965AC can support the insertion of TYPE-C devices into the automatic wake-up system, intelligently recognize the forward and reverse insertion of plugs, and achieve connection. The integrated TYPE-C PD3.0 protocol supports Bidirectional Markup Coding (BMC), integrates hardware's physical layer protocol and protocol engine, and does not require software to participate in encoding and decoding. When one of the Type-C and Type-A ports is connected to the device, both Type-C and Type-A ports can achieve independent fast charging function.

When both Type-C and Type-A are connected to the device, the output voltage will be reduced to 5V to supply power to the device. Specifically, when the Type-A port is continuously connected to the Apple charging cable but not connected to the Apple phone, the Type-C port still has a fast charging function. When used as a charger, the charging cable is often connected to the charger. Perfect solution to the fast charging problem when Type-A and Type-C ports are connected to charging cable applications. In addition, the Type-A port has a low cutoff current threshold of 10mA when fully charged, which can support small current charging of intelligent wearable devices.

CX2965AC achieves dynamic voltage regulation through a Sink/Source current source connected to the feedback pins of AC-DC or DC-DC. It has a soft start/voltage regulation function during both startup and voltage regulation processes, achieving smooth voltage transition.

CX2965AC has multiple built-in protection mechanisms to ensure equipment safety, including dynamic overvoltage/undervoltage/overcurrent protection (the protection point can be adjusted proportionally based on the operating voltage/current requested by the equipment); Start monitoring (before VBUS output, it will monitor whether the port voltage is in a safe state).

Integrating a 10m Ω VBUS channel power switch and an internal discharge channel saves peripheral devices, allowing for quick shutdown of the output and restoration to a safe state in the event of an error.

CX2965AC is packaged in TSSOP-20 and QFN4x4-20. The peripheral circuit in the application is very simple