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UCC27282: 产品刚刚开始测试是正常的,产品在切换“平衡状态功率转换” & “状态功率转换不平衡”测试过程中UCC27282DRCR损坏

Part Number: UCC27282

产品刚刚开始测试是正常的,是因为产品经切换“平衡状态功率转换” & “状态功率转换不平衡”测试过程中将UCC27282DRCR 损坏

测试1:平衡态功率转换:无输出功率,工作电流较大(224毫安)UCC27282DRCR 损坏

测试2:不平衡状态下的电源转换:无输出功率,且工作电流较大(224毫安)UCC27282DRCR 损坏

测试3:不平衡状态下的功率转换:输出功率较低,工作电流较大(362毫安)UCC27282DRCR 损坏

请帮忙分析损坏原因是什么,谢谢。