Shulou(Shulou.com)06/01 Report--

Nowadays, electronic products can be seen everywhere in the market. 5V 3A USB power adapter has become a household necessity to a certain extent. Power adapter manufacturers will directly affect the quality of the whole power adapter when choosing power adapter chips, so it is very important for enterprises to choose a suitable power adapter chip supplier. Microelectronics recommends the adapter 5v3a high-performance chip solution.

Level 6 Energy efficiency 15W Adapter Application Scheme (AP8266 SOT23-6)

■ input voltage: 90~264Vac full voltage range

■ output specification: 5 ±0.25V/3A

■ output power: ≤ 15W

The ■ design meets the relevant security requirements of IEC60950.

■ has recoverable short circuit protection and output overload protection

After the fault of the secondary feedback device of ■, it can enter the overload protection and resume work after troubleshooting.

Maximum efficiency of ■ full load output: more than 84%

AP8266 is a highly integrated current mode PWM control chip. The built-in green working mode greatly reduces the power consumption of standby mode and makes it easier to meet international energy efficiency standards. At the same time, AP8266 contains rich protection functions to improve reliability, including cycle-by-cycle overcurrent protection, overload protection, overvoltage clamping and overvoltage protection, undervoltage latching, and overcurrent protection with line voltage compensation. As a result, more accurate overload protection can be obtained in the full voltage input range.

The adapter 5v3a high performance chip scheme provides 12V 3A output, the full load efficiency is more than 84%, the standby power consumption is lower than 150mW, and the conduction test meets the requirements of EN5 502 CE Mains ClassB.

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