CXW dual C port 45W gallium nitride fast charging solution is coming! The main control chip adopts CX1342, and the synchronous rectification chip adopts CX7601; The protocol part is paired with the CX2935 fast charging chip to form a complete set of high-performance and cost-effective overall solution. The entire solution is independently developed and designed by the original factory of Chengxin Micro CX power chip, and the low-temperature rise and high-efficiency PD fast charging solution assists in mass production and market launch of the product. Provide a 45W high-density GaN fast charging reference design/45W GaN PD solution development.

Specific parameters:

Input: 100-240V 50/60HZ 1A (MAX)

Any C-port output: 5V3A 9V3A 12V3A 15V3A 20V2.25A

Dual C-port output: C1+C2 5V3A 9V2.22A 12V1.67A

CXW dual C port 45W gallium nitride fast charging solution, a complete set of 45W2C port PD gallium nitride charging solution combined with CX1342, CX7601, and CX2935. CX1342 is a high-frequency primary PWM controller with built-in active X2 capacitor discharge and multiple comprehensive protection functions. It is mainly used in PD fast charging power supply applications within 33W-100W, and can support GaN power transistor drive; CX7601 is a high-performance synchronous rectification control circuit for the secondary side of a switching power supply. In low voltage and high current switching power supply applications, it easily meets 6-level energy efficiency and is an ideal solution for ultra-low conduction voltage drop rectification devices; The synchronous rectification MOS adopts CX010N06, which is a 100V withstand NMOS with a conductivity of 6m Ω and is packaged in DFN5 * 6.

The power chip used for buck output adopts the (power+protocol integrated chip) CX2935, which is an integrated synchronous switch buck converter that supports multiple output fast charging protocols, USB Type-C and PD, including USB Type-C and PD protocols, Qualcomm QC2.0/3.0/3.0+, Huawei FCP/SCP/HVSCP VOOC 2.0/4.0 protocol, MediaTek PE, Samsung AFC, USB BC1.2 DCP, and Apple 2.4A charging specifications Provide complete solutions for power supply equipment such as car chargers, various fast charging adapters and intelligent battery plugs.

The overall solution for 45W dual C-port PD gallium nitride fast charging supports 45W fast charging output with each port supporting 45W output, which can be used for charging laptops. The dual port output supports automatic power allocation, and the total output power is 45W. In short, this set of solutions is quite streamlined and can effectively help engineers shorten the design time of chargers, avoid the problem of incompatible products from various manufacturers in the design, and accelerate the product launch speed.

There is another combination of 45W dual C-port PD gallium nitride fast charging solutions:

CX1342+CX7601+[CX8576+CX2965C] * 2+100V MOS This scheme has better heat dissipation effect compared to the previous scheme. The specific scheme selection can be comprehensively eva1uated by oneself or recommended by consulting our FAE engineer.