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Pn8162 20W PD fast charging chip, PD fast charging charger scheme
2020-11-06 20:32:00 【Li Microelectronics】
2017 So far this year , Apple has launched a number of mobile phones that support USB PD Quick charge , Apple 20W(5V3A & 9V2.22A) The introduction of chargers , It will form a brand new market , It's very likely that 20W The rapid growth of the fast charging market , Li microelectronics 20W PD Fast charging protocol chip PN8162, And mass production has been realized , Apply to 20W PD The charger 、 Adapter and open switching power supply and other applications .
PN8162 20W PD Quick charge Chip features :
■ built-in 690V High avalanche power MOSFET
■ Quasi resonant operation
■ Maximum switching frequency 125kHz
■ The periphery is streamlined , There is no need to start resistance and CS Check the resistance
■ High and low voltage feet are arranged on both sides to improve safety
■ Built in high voltage start , No load standby power consumption <50mW @230VAC
■ improve EMI Frequency modulation technology
■ Supply voltage 9-38V, Suitable for wide output voltage applications
■ Excellent comprehensive protection function
· Over temperature protection
· Output overvoltage protection
· Input undervoltage protection
· Cycle by cycle overcurrent protection
· Output on / Short circuit protection
· Secondary rectifier short circuit protection
· Overload protection
20W PD High integrated chips are used in the fast charging scheme , Just use PN8162+PN8307 And that's what happened AC-DC Power conversion and other complex functions , And minimize the number of peripherals on the chip , Reduce PCB The area occupied by the board , more PN8162 20W PD Schematic diagram of fast charging protocol chip , Power input and output specifications ,BOM Table and transformer parameters as well as safety regulations and EMI Test data, etc , Please apply to Li microelectronics .>>
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