“The design core of this solution is the XDPS21081 flyback Controller IC, which can meet all the conditions under QR or discontinuous conduction mode (DCM) operation. Not only that, the XDPS21081 is also capable of maximizing efficiency in reduced frequency mode (FRM) and burst mode (BM) in medium to light load conditions. All in all, the overall efficiency can be pushed to over 90%, while the highest efficiency reaches over 93% over all load and input linear voltage ranges.

“

On August 5, 2021, Dalian General Holdings, a leading semiconductor component distributor dedicated to the Asia-Pacific market, announced that its subsidiary Pinjia has launched a 65W USB-PD solution based on Infineon’s XDPS21081.

Figure 1 – The Display board of Dalian Dapinjia’s 65W USB-PD solution based on Infineon products (1)

Since the popularization of the PD charging protocol, PD chargers have been brilliant in the field of consumer electronics and have become the standard for more and more digital products. At present, not only mobile phones and mobile power supplies have adopted PD chargers, but also switch game consoles, notebooks and other devices have also been put into the PD camp, which further expands the market for PD chargers. Based on the 65W USB-PD solution launched by Infineon XDPS21081, Dalian Dapinjia has the characteristics of high efficiency and low cost, and can be widely used in Mobile PD charger, PC adapter and other fields.

Figure 2 – The Display board of Dalian Dapinjia’s 65W USB-PD solution based on Infineon products (2)

As a 65W USB-PD 3.0 Type-C charger, this solution has a universal input voltage range of 90~264VAC. The supported outputs are 5V/3A, 9V/3A, 12V/3A, 15V/3A and 20V/3.25A.Its peak efficiency is 93%, standby input power

Figure 3 – Block diagram of Dalian Dapinjia’s 65W USB-PD solution based on Infineon products

The design core of this solution is the XDPS21081 flyback controller IC, which can meet all the conditions under QR or discontinuous conduction mode (DCM) operation. Not only that, the XDPS21081 is also capable of maximizing efficiency in reduced frequency mode (FRM) and burst mode (BM) in medium to light load conditions. All in all, the overall efficiency can be pushed to over 90%, while the highest efficiency reaches over 93% over all load and input linear voltage ranges.

In addition, XDPS21081 has various protection functions (such as: input over-under-voltage, CS pin short, VCC over-voltage protection (OVP), Vout OVP, over-current protection (OCP), overload protection (OLP), over-temperature protection (OTP) ), latch enable, etc.). And the controller exploits the full power of the power supply with various configuration features such as propagation delay compensation for maximum power control, adaptive current limit voltage for variable output, and configurable input linearity for transitions between QR and FQR ZVS modes. Voltage.

Figure 4 – The physical diagram of Dalian Dapinjia’s 65W USB-PD solution based on Infineon products

Core technical advantages:

• Easy customization and compact form factor design, power density up to 25W/in3;
• High efficiency, low standby power consumption, in line with international regulations;
• With various protections, such as: input over-voltage, over-temperature protection (OTP), Vout OVP and other protections.

Program Specifications:

• Universal input voltage range 90~264VAC;
• Up to 65W continuous power, peak efficiency over 93%;
• Fixed output: 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/3.25A;
• Meets EU CoC Tier 2 and DOE Energy Star Class VI average efficiency and no-load input power requirements.