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驱动芯片烫

Other Parts Discussed in Thread: UCC3895, UCC27324, UCC27424

最近做的3.3KW的电源,隔离驱动芯片有点烫,表面温度有70-80度左右。环温25度,产品敞开老化测得。UCC3895输出后经过驱动芯片然后到驱动变压器初级,然后到次级最后到MOSFET。