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https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/627155/ucc28019-three-questions-about-ucc28019
原理图和 PCB 参考附件。使用 UCC28019有三个问题。
1、当输入条件不稳定时、MOS FET 开关会立即产生高电压脉冲、这会导致 MOS FET 击穿；
2、MOS-FET 开关产生不规则的电流脉冲并导致 PWM 损耗；μ A
3、储能 感应噪声非常大，可以听到声音。
附件文件可通过 PDF、Altium Designer。打开
e2e.ti.com/.../UCC28019.rar
