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Ken Shirriff said...

Anonymous: good work identifying the control chip as the OB2263! I checked the charger's circuit against the 2263 datasheet and the pinout and circuit fit perfectly. In addition, the datasheet says the chip is labeled with "63ddd" where ddd is a date code, which matches the "63G01" on the chip. Interestingly, the datasheet says the chip is designed for supplies under 30 watts, while the charger was advertised as 45W, which makes me suspicious about how much power the charger could actually provide.

Mar 21, 2016, 10:48:50 PM

Posted to Counterfeit Macbook charger teardown: convincing outside but dangerous inside