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MP4030GS 数据表(PDF) 16 Page - Monolithic Power Systems |
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MP4030GS 数据表(HTML) 16 Page - Monolithic Power Systems |
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16 / 21 page ![]() MP4030—PRIMARY-SIDE-CONTROL, OFFLINE LED CONTROLLER WITH PFC MP4030 Rev.1.02 www.MonolithicPower.com 16 4/16/2013 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2013 MPS. All Rights Reserved. Io TRIAC dimming turn on cycle 100% 30% 75% VCOMP Figure 13: Dimming Curve Dimming Pull-Down MOSFET The DP MOSFET turns on when the MULT decreases to 0.25V. Connect a resistor to the D pin to provide the pull-up current during the dimming turn-off interval, and pull down the rectified line voltage to zero quickly to avoid any mis-detection on the MULT pin. |
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