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AN2842 Scheda tecnica(PDF) 2 Page - STMicroelectronics |
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AN2842 Scheda tecnica(HTML) 2 Page - STMicroelectronics |
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2 / 22 page ![]() Contents AN2842 2/22 Doc ID 15110 Rev 1 Contents 1 Schematic diagrams of analyzed topologies . . . . . . . . . . . . . . . . . . . . . 4 2 Approach to the study . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.1 Differences between the power circuit components . . . . . . . . . . . . . . . . . . 5 2.2 Gate circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.3 Influence of the boost diode in the current imbalance . . . . . . . . . . . . . . . 11 2.4 Temperature imbalance between devices . . . . . . . . . . . . . . . . . . . . . . . . 13 2.5 Influence of the differences between the power circuit components . . . . 13 2.6 Differences in the VGS(th) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2.7 Differences in RDS(on) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 2.8 Influence of the gfs parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 3 Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 4 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 |
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