This car charger solution has USB-A + Type-C dual fast charging interface, which can fast charge two mobile phones 

at the same time. USB-C port supports 30W PD fast charging, USB-A port supports 30W fast charging, and the 

maximum total output power is 60W. When dual ports are used at the same time, it supports automatic power distribution,

which meets the demand of charging mobile phones and laptops at the same time. The USB-C interface of this car 

charger adopts multi-protocol integrated DC-DC synchronous buck converter CX8831CA. USB-A port is composed of 

CX8833+ protocol chip CX2907. The peripheral components of the whole scheme are simplified. It is a multi-protocol 

dual-port vehicle charging solution with small volume, high integration and high performance.

The scheme parameters are as follows:

USB-A output: 5V/3A, 9V/3A, 12V/2.5A 30W(Max).

USB-C output: 5V/3A, 9V/3A,12V/2.5A 30W(Max).

Total output power: 60W

Using ChargerLAB POWER-Z KT002, it is measured that USB-A port supports Apple 2.4A, Samsung 5V2A, QC2.0, 

QC3.0, AFC, FCP, SCP, VOOC and DCP protocols.

In addition, it is measured by KT002 that USB-C port supports Apple 2.4A, Samsung 5V2A and DCP protocols, 

as well as QC2.0/3.0, AFC, FCP, SCP, VOOC and PD3.0 fast charging protocols.

In addition, it also has three groups of fixed voltage gears: 5V3A, 9V3A and 12V2.5A. PPS:3.3-5.9V 3A / PPS:3.3-11V 2.75A

USB-A port adopts CX8833 buck 5V output. This is a 30V withstand voltage, 3.1A output synchronous rectifier buck 

converter. CX8833 does not need external compensation, and can realize constant current and constant voltage 

control by its own built-in stable loop. At the same time, it has the function of cable voltage drop compensation and is 

packaged in SOP-8L, which is suitable for car chargers and chargers.

The USB-C port circuit adopts multi-protocol integrated DC-DC synchronous buck converter CX8831CA for buck control 

and protocol identification to control the output voltage. This is a buck SoC chip integrating various fast charging protocols, 

which supports USB Type-C and PD3.1 protocols, Qualcomm QC2.0/3.0/3.0+ protocols, Huawei FCP/SCP/HVSCP 

protocols, VOOC protocols, MediaTek PE2.0 protocols, MTK PE fast charging, Samsung AFC protocols, USB BC1.2 

DCP protocols and Apple2.4A charging specifications. Using ESOP-8L package can effectively reduce peripheral components.

This car charger is equipped with 1A1C interface, in which port C is compatible with QC2.0/3.0, AFC, FCP, SCP, VOOC 

and PD3.0 fast charging protocols, and it can charge two mobile phones at the same time. CXW Technology 60W 1A1C 

car charging PD fast charging Demo design development more details , please contact us or leave a message.