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AN2783 Datasheet(PDF) 3 Page - STMicroelectronics |
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AN2783 Datasheet(HTML) 3 Page - STMicroelectronics |
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3 / 47 page ![]() AN2783 Contents 3/47 10.4 Rectifier diode dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 10.5 PM8800 internal power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 11 Layout guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 12 Test results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 12.1 Efficiency measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 12.2 5 V high-power board measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 12.3 3.3 V standard-power board measurements . . . . . . . . . . . . . . . . . . . . . . 36 12.4 IEEE 802.3af compatibility test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Appendix A Schematic of high-power board . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Appendix B Schematic of standard-power board . . . . . . . . . . . . . . . . . . . . . . . . 45 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 |
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