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STD55NH2LLT4 Datasheet(PDF) 10 Page - STMicroelectronics |
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STD55NH2LLT4 Datasheet(HTML) 10 Page - STMicroelectronics |
10 / 16 page Appendix A STD55NH2LL - STD55NH2LL-1 10/16 Table 6. Power losses calculation High side switching (SW1) Low side switch (SW2) Pconduction Pswitching Zero Voltage Switching Pdiode Recovery (1) 1. Dissipated by SW1 during turn-on Not applicable Conductio n Not applicable Pgate(QG) PQoss Table 7. Paramiters meaning 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 drive losses PQoss Output capacitance losses δ * I * R 2 L DS(on)SW1 ) 1 ( * I * R 2 L DS(on)SW2 δ − g L I I * f * ) Q (Q * V gd(SW1) gsth(SW1) in + f * Q * V rr(SW2) in f * t * I * V deadtime L f(SW2) f * V * Q gg g(SW1) f * V * Q gg gls(SW2) 2 f * Q * V oss(SW1) in 2 f * Q * V oss(SW2) in |
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