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STD70N03L-1 Scheda tecnica(PDF) 10 Page - STMicroelectronics |
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STD70N03L-1 Scheda tecnica(HTML) 10 Page - STMicroelectronics |
10 / 16 page Power losses estimation STD70N03L - STD70N03L-1 10/16 High side switch (SW1) Low side switch (SW2) Pconduction Pswitching Zero voltage switching Pdiode Recovery Not applicable Conduction Not applicable Pgate(Qg) PQoss 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 -------------------------------------------------- Parameter 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 |
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