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关于uc2825A在高温下工作的问题

Other Parts Discussed in Thread: UC2825A

你好,目前我们在用uc2825A这款芯片做一个dcdc产品,在80度的时候发现占空比最大只能到20% 但在室温的时候输出50A的时候可以达到23%

经检查供电及ss及ILMT都无异常,请问还有什么思路可以参考的么?