Dailian Dayoushang Group launches 140W PD3.1 GaN charger solution based on Diodes products
Date：June 25, 2025 Views：33
Source: General Assembly Author: General Assembly
On March 18, 2025, the leading international distributor of semiconductor components in the Asia Pacific market, Dailun Holdings, announced that its company, You-Sun, has launched a 140W PD3.1 GaN charger solution based on Diodes AP3306, APR3401 and AP43771H controllers.
AP43771H is a protocol decoder that is responsible for connecting USB Type-C? The charging device (DUC) matches the relevant charger capacity and request, and adjusts the charger feedback network to meet the voltage and current requirements of the DUC. In addition, the solution uses gallium nitride (GaN) FETs to further improve charging efficiency and thermal performance.
AP3306 Features:
Active clamp flyback topology with leakage energy recovery and zero voltage switching function;
High voltage start, embedded VCC LDO for VCCL pins to ensure a wide range of output voltage;
Maintain constant low output current in case of output short circuit;
Quasi-resonant control of silent noise;
Soft start during startup, frequency retrace to achieve high average efficiency;
With FOCP secondary winding short-circuit protection to reduce EMI frequency jitter X-CAP discharge function;
Useful Pin fault protection: SENSE pin float protection /FB/ optical coupler open/short circuit protection;
Comprehensive system protection: VOVP/OLP/BNO/SOVP/SSCP.
AP43771H Main features:
Support USB PD Rev 3.1, OTP of MTP master firmware for system configuration;
Operating voltage range: 3.3V to 28V Built-in regulators for CV and CC control;
Programmable OVP/UVP/OCP/OTP, support power saving mode;
External N-MOSFET control for VBUS power supply;
Support e-Marker cable detection W-DFN3030-14 package.
Project specification:
Main power supply specifications:
Input voltage: 90Vac~ 264Vac;
Input standby power: <80Mw;
Main output: 5V/3A, 9V/3A, 15V/3A, 20V/3A, 28V/5A;
Efficiency: DOE VI and COC Tier 2;
Support maximum output: 140W PD3.1;
Protection: OCP, VP, UVP, OLP, OTP, SCP;
Size:
PCB: 84mm×55mm×23mm;
Case: 88mm×59mm×27mm;
Power density index: 1W/CC.
About Lianda Holdings:
Founded in 2005 and celebrating its 20th anniversary this year, the company is a leading international distributor of semiconductor components in the Asia Pacific region. Headquartered in Taipei, it owns Shiping, Pinka, Quan Ding and Yousun, employs about 5,000 people, represents more than 250 product suppliers, and has 69 service locations worldwide. In 2024, the turnover reached NT $880.55 billion. The company creates an industrial holding platform, focuses on international operation scale and local flexibility, and cultivates the Asia-Pacific market for a long time. With the vision of "industry's first choice?? Channel benchmark", the company fully carries out the core values of "team, integrity, professionalism and efficiency", has won the "Global Distributor Excellence Award" for 24 consecutive years, and continues to strengthen the sustainable development of ESG. Won international recognition for 3 consecutive years, MSCI ESG rating A award. In the face of new manufacturing trends, DDA is committed to transforming into a Data-Driven enterprise, establishing an online digital platform - "DDA", and advocating the intelligent Logistics as a Service (LaaS) model to help customers jointly face the challenges of intelligent manufacturing. Starting from good intentions, building trust with science and technology, and taking "creating partner value?? To achieve the future" as the corporate purpose, we look forward to building a large competitive and cooperative ecosystem with the industry "Labang and Pai".
On March 18, 2025, the leading international distributor of semiconductor components in the Asia Pacific market, Dailun Holdings, announced that its company, You-Sun, has launched a 140W PD3.1 GaN charger solution based on Diodes AP3306, APR3401 and AP43771H controllers.
Figure 1- Display board of a 140W PD3.1 GaN charger solution based on Diodes products
Nowadays, the high-power fast charge technology of smart devices has become the focus of general attention of consumers. In this context, gallium nitride, as an emerging semiconductor material, is gradually becoming a new favorite in the field of fast charge with its excellent energy conversion efficiency, fast response ability and low heat loss characteristics. At the same time, the release of the USB PD3.1 protocol is to promote the charging efficiency to a new level, the protocol not only significantly improves the charging power, but also introduces multi-voltage gear, making the fast charging technology more flexible, so as to meet the charging needs of all kinds of smart devices. In view of this trend, we are introducing a 140W PD3.1 GaN charger solution based on Diodes AP3306, APR3401 and AP43771H controllers with a patented ACF topology that meets DOE VI and COC Tier 2 efficiency requirements. And the solution supports PD3.1 function and AVS 28V, step size of 100mV, can reduce the overall BOM cost.Figure 2- The scenario application diagram of the 140W PD3.1 GaN charger solution of Dailian Dayu Shang based on Diodes products
The device is composed of three main controllers AP3306, APR3401 and AP43771H. The AP3306 is a highly integrated active clamped flyback (ACF) controller optimized for off-line power supplies to meet the needs of ultra-low standby power consumption, high power density and comprehensive protection. The APR3401 is a secondary side synchronous rectifier (SR) controller that can be used as a rectifier in the DCM operation of synchronous secondary side MOSFET drivers, providing solutions that effectively reduce secondary side rectifier power consumption and provide high performance.AP43771H is a protocol decoder that is responsible for connecting USB Type-C? The charging device (DUC) matches the relevant charger capacity and request, and adjusts the charger feedback network to meet the voltage and current requirements of the DUC. In addition, the solution uses gallium nitride (GaN) FETs to further improve charging efficiency and thermal performance.
Figure 3- A block diagram of a 140W PD3.1 GaN charger solution from Dailun Daioshang based on Diodes products
Diodes is an industry-leading manufacturer and supplier of high-quality semiconductor products for the consumer electronics, computing, communications, industrial and automotive markets. The 140W PD3.1GaN charger scheme based on Diodes products has high cost performance and high power density, which can help manufacturers quickly complete high-power fast charge product design.
AP3306 Features:
Active clamp flyback topology with leakage energy recovery and zero voltage switching function;
High voltage start, embedded VCC LDO for VCCL pins to ensure a wide range of output voltage;
Maintain constant low output current in case of output short circuit;
Quasi-resonant control of silent noise;
Soft start during startup, frequency retrace to achieve high average efficiency;
With FOCP secondary winding short-circuit protection to reduce EMI frequency jitter X-CAP discharge function;
Useful Pin fault protection: SENSE pin float protection /FB/ optical coupler open/short circuit protection;
Comprehensive system protection: VOVP/OLP/BNO/SOVP/SSCP.
APR3401 Main features:
Synchronous rectification is suitable for DCM/QR/ACF operation mode;
Eliminate resonant ringing interference;
Use minimal external components.
AP43771H Main features:
Support USB PD Rev 3.1, OTP of MTP master firmware for system configuration;
Operating voltage range: 3.3V to 28V Built-in regulators for CV and CC control;
Programmable OVP/UVP/OCP/OTP, support power saving mode;
External N-MOSFET control for VBUS power supply;
Support e-Marker cable detection W-DFN3030-14 package.
Project specification:
Main power supply specifications:
Input voltage: 90Vac~ 264Vac;
Input standby power: <80Mw;
Main output: 5V/3A, 9V/3A, 15V/3A, 20V/3A, 28V/5A;
Efficiency: DOE VI and COC Tier 2;
Support maximum output: 140W PD3.1;
Protection: OCP, VP, UVP, OLP, OTP, SCP;
Size:
PCB: 84mm×55mm×23mm;
Case: 88mm×59mm×27mm;
Power density index: 1W/CC.
About Lianda Holdings:
Founded in 2005 and celebrating its 20th anniversary this year, the company is a leading international distributor of semiconductor components in the Asia Pacific region. Headquartered in Taipei, it owns Shiping, Pinka, Quan Ding and Yousun, employs about 5,000 people, represents more than 250 product suppliers, and has 69 service locations worldwide. In 2024, the turnover reached NT $880.55 billion. The company creates an industrial holding platform, focuses on international operation scale and local flexibility, and cultivates the Asia-Pacific market for a long time. With the vision of "industry's first choice?? Channel benchmark", the company fully carries out the core values of "team, integrity, professionalism and efficiency", has won the "Global Distributor Excellence Award" for 24 consecutive years, and continues to strengthen the sustainable development of ESG. Won international recognition for 3 consecutive years, MSCI ESG rating A award. In the face of new manufacturing trends, DDA is committed to transforming into a Data-Driven enterprise, establishing an online digital platform - "DDA", and advocating the intelligent Logistics as a Service (LaaS) model to help customers jointly face the challenges of intelligent manufacturing. Starting from good intentions, building trust with science and technology, and taking "creating partner value?? To achieve the future" as the corporate purpose, we look forward to building a large competitive and cooperative ecosystem with the industry "Labang and Pai".
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