DAP011 查看數據表（PDF） - ON Semiconductor

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DAP011

PWM Current−Mode Controller for High−Power Universal Off−Line Supplies

ON Semiconductor 

DAP011/DAP011C

3. A second case exists where the short−circuit

makes the auxiliary level go below VCC(min). In

that case, the timer length is truncated and all

pulses are stopped. The double hiccup fault mode

is entered and the SMPS tries to restart. When the

fault is removed, the SMPS resumes operation.

Figure 25. This Case is Similar to a Short−circuit Where VAUX Does Collapse

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