Teardown of vivo 90W FlashCharge GaN Charger

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Introduction
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Today, we are going to tear down the charger that comes with the vivo X200 and S20 series. It utilizes GaN technology, featuring a maximum output power of 90W, and is compact compared to traditional chargers. Although the output port is USB-A, it supports charging protocols such as QC and UFCS. Next, let's take it apart to see its internal components and structure.

Bill of materials (BOM)
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Model: V9082L0E1-CN
Master control chip: SouthChip SC1854
MOSFET: Innoscience INN700TK350B
Synchronous rectifier controller: SouthChip SC1856
Synchronous rectifier: Pingwei PW065N06ESL
Protocol chip: Injoinic IP2256U