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UCC28180: 芯片供电问题

Part Number: UCC28180
Other Parts Discussed in Thread: UC3842

请问UCC28180的供电问题怎么解决,我们做一体式成品电源,不能给芯片单独供电,可不可以从母线电压哪里得到芯片的供电,就像uc3842那样