Disassembly report: Harman infinitylab 100W 2a2c gallium nitride charger

2024-09-01

Harman infinitylab is a well-known brand of digital accessories. Its products include mobile power supply, charger, data cable and loudspeaker. The product is simple and fashionable, easy to operate, small and portable. The product is made of recycled plastic and packed without plastic, which is more friendly to the environment.

The portable charger of infinitylab adopts gallium nitride devices, which has improved performance and significantly reduced volume compared with traditional silicon devices. The charging head network obtained a 100W 2c2a gallium nitride charger from infinitylab, which has a gallium nitride switch tube of Gan systems built in.

Gan systems was founded in Ottawa, Canada in 2008, and its products have maintained a good reputation among customers in different industries. Apple 140W gallium nitride charger disassembled from the charging head network previously has two enhanced gallium nitride switches of Gan systems built in, which can enter Apple's fast charging supply chain, which shows that the chip of Gan systems is quite excellent in both performance and quality.

This 100W four port charger launched by infinitylab comes with American Standard, European standard and British standard plugs, eliminating the trouble of buying pin converters. The charger has two usb-c interfaces supporting 100W output and two usb-a jacks with 5V output to meet the charging needs of notebooks, mobile phones and traditional old-fashioned devices.

According to the disassembly of charging head network, this charger adopts pfc+llc switching power supply architecture and tea19162+tea19161t+tea1995 full set of NXP NXP power supply solutions. The gs-065-011-1-l enhanced gallium nitride device of Gan systems is used internally for PFC boost, and the LLC switch uses two semihow hcfl65r210 super junction MOS tubes, which are matched with synchronous rectification output fixed voltage to supply power to the step-down circuit.

In the step-down circuit, the usb-c port adopts Weiquan wt6636f protocol chip and Tuoer micro tmi2286d for step-down output, and the two usb-a ports adopt Nanxin sc8002 Synchronous Step-Down Controller and Huayi micro MOS tube for fixed 5V output. The charger is internally equipped with thermistor for overheating protection. The high-voltage electrolytic capacitor and solid-state capacitor are from wanjingyuan. Both sides of the PCB are equipped with Mylar sheets and aluminum sheets for heat dissipation. The internal structure is compact and the material is reliable.