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您好，4S/750kHz, 推荐您用 2.2uH . 目前只测过最大 3x10uF 25V 在PMID， 5x10uF 25V 在 SYS. 25V rated capacitors de-rate significantly at 4X=16.8V.
You might need more capacitance on PMID and SYS. The VBUS, PMID and SYS 0.1uF capacitors need to be placed as close as possible to those pins and GND, with no vias for the PMID and SYS 0.1uF capacitor. Also, no vias for the PMID and SYS bulk capacitors. The recently updated EVM user's guide shows the recommended layout.
Can you give more info on the operating condition at which the charger was damaged? What charger functions are no longer operating?