Overview:
1. Introduction With the implementation of the six-level energy efficiency standard for chargers, the demand for their solutions is becoming more and more urgent. Many charger engineers reflect that the QR architecture scheme has more efficiency margins, but the components of the PSR scheme are more complicated, and the debugging production is more complicated. In addition to providing the QR architecture PN836X product solution, Xinpeng Microelectronics has developed a more cost-effective six-level energy efficiency 7.5W charger solution based on PN8358, which is more compact and economical than the QR architecture, providing domestic cost pressure charging. The manufacturer has a new six-level energy efficiency option.
Based on PN8358 5V 1.5A six-level energy-efficient PSR power solution, the typical application is 5V1.5A charger for smart phones and tablets, 7.5W adapter for set-top box and DVD. It belongs to the same control platform as the core products PN8355, PN8356, PN8359 and PN8360. This series of products can provide 5~15W complete charger 5/6 solution.
PN8358 has the following features:
â— Standby power consumption is less than 75mW: Built-in patented high-voltage start-up module saves high-voltage starting resistance.
â— Efficiency meets DOE Level 6: Intelligent multiple work mode significantly improves average efficiency,
â— CV, CC accuracy within 5%: built-in input voltage, DC output line compensation, can be satisfied under any working conditions â— Compact size: integrated 4.5ohm 650V intelligent power MOS, PSR optocoupler / TL431, SOP7 package â— Rich protection : With over temperature protection, VDD undervoltage protection, FB open short circuit protection, CS open short circuit protection, sufficient voltage and temperature rise de-rating margin, improve system reliability
2. System design points The typical application of the system is shown in Figure 1. The design points are listed below: 
Figure 1 Typical application of the PN8358 system (please read the PDF for details)
Industrial computers and commercial computers have always been inextricably linked. They each have their own application areas, but they affect each other and promote each other, reflecting the progress of science and technology. At present, it is better to do Sanqi Tuoda in China and Advantech in Taiwan. Advantech has a higher reputation, but its price is higher. The industrial computer site can be embedded in the machine, cabinet or placed on the operation table, and it can be used as a man-machine display interface. It is used in telecommunications, electric power, multimedia, national defense, automation equipment, manufacturing and other fields. It is used as a man-machine interface, thin client, PLC and POS communication and control terminals. Digital hospitals are used as bedside service terminals and outpatient terminals to improve hospital service and management. Banks, shopping malls, hotels, railway stations, buses, subway stations, parks and other public places as media (advertisement) players or inquiry terminals. High-end residential quarters are used as home service terminals to implement intercom, message, cost inquiry, product order, home appliance management, temperature and humidity control, etc.
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Shenzhen Hengstar Technology Co., Ltd. , https://www.angeltondal.com