Datenblatt-Suchmaschine für elektronische Bauteile |
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STD70N02L-1 Datenblatt(PDF) 10 Page - STMicroelectronics |
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STD70N02L-1 Datenblatt(HTML) 10 Page - STMicroelectronics |
10 / 17 page Buck convert STD70N02L - STD70N02L-1 10/17 Table 8. Power losses High side switch (SW1) Low side switch (SW2) Pconduction Pswitching Zero voltage switching Pdiode recovery Not applicable conduction Not applicable Pgate(Qg) PQoss Table 9. Power losses parameters Paramter Meaning d Duty-cycle Qgsth Post threshold gate charge Qgls Third quadrant gate charge Pconduction On state losses Pswitching On-off transition losses Pdiode Conduction and reverse recovery diode losses Pgate Gate driver losses PQoss Output capacitance losses R DS on () I L 2 •δ • R DS on () I L 2 • 1 δ – () • V in Q gsth SW1 () Q gd SW1 () + () • f I L I g ---- • • V 1 in Q rr SW2 () • f • V fSW2 () I L t deadtime f • • • Q gSW1 () V gg • f • Q gls SW2 () V gg • f • V in Q oss SW1 () • f • 2 -------------------------------------------------- V in Q oss SW2 () • f • 2 -------------------------------------------------- |
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