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TPA3255 has the option of either limiting the output current for each switching cycle (Cycle By Cycle Current Control, CB3C) or to perform an immediate shutdown of the output in case of excess output current (Latching Shutdown).
CB3C 有逐个周期对比和自动恢复的功能. 具体情况看手册的图26 的 CB3C 的时序例子吧