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AN-6005_Switching_Loss_Calculation

AN-6005_Switching_Loss_Calculation

Controller / Driver:Dampin g

MOSFETs ITEM QTY In

Database3FAN5069

RDAMP

H0

HS FDD37061FDD3706High-Side

VDRIVE 4.8

RDAMP

L0

LS FDD88962FDD8896Low-Side V DRIVE5

VinLow10V Must be an

integer

High-Side Pull-

up Resistance 1.8

VinHigh15V Must be an

integer

High-Side Pull-

down Resistance 1.8

VSTEP2V Must be an

integer

Low-Side Pull-up

Resistance 1.8

Vout 1.4V Low-Side Pull-

down Resistance 1.2

Iout25A Must be an

integer

Adaptive Dead-

time Threshold1

FSW200KHz Dead Time L-H25

HSThetaJA40°C/W Dead Time H-L10Driver

Dissipati

on0.04W

LSThetaJA40°C/W Theta J-A100Driver T J53°C

Max T A50°C Controller

Quiescent Power

(mW)16

FSW Vin VOUT I OUT

Total

Losses

SW

Losses

Conduction

Losses HS Losses

LS

Losses Efficiency

LS Die

Temp

HS Die

Temp

20010 1.410.190.080.010.080.0588%5153 20010 1.420.220.100.030.100.0693%5154 20010 1.430.270.120.060.120.0894%5155 20010 1.440.320.130.090.140.1095%5256 20010 1.450.380.150.140.170.1395%5357 20010 1.460.450.170.190.200.1695%5358 20010 1.470.530.180.250.230.2095%5459 20010 1.480.610.200.320.260.2595%5561 20010 1.490.710.220.400.300.3095%5662 20010 1.4100.810.240.480.340.3595%5764 20010 1.4110.930.250.580.380.4194%5966 20010 1.412 1.050.270.680.430.4894%6067 20010 1.413 1.180.290.800.480.5694%6269 20010 1.414 1.320.300.920.530.6494%6471 20010 1.415 1.470.32 1.050.580.7393%6574 20010 1.416 1.630.34 1.200.640.8293%6776 20010 1.417 1.810.36 1.360.710.9393%7078 20010 1.418 1.990.37 1.520.77 1.0493%7281 20010 1.419 2.190.39 1.700.84 1.1692%7484 20010 1.420 2.400.41 1.890.92 1.2892%7787 20010 1.421 2.620.42 2.100.99 1.4292%8090 20010 1.422 2.850.44 2.32 1.08 1.5692%8393 20010 1.423 3.100.46 2.55 1.16 1.7291%8697 20010 1.424 3.370.47 2.80 1.25 1.8891%90100 20010 1.425 3.650.49 3.06 1.35 2.0691%93104 20012 1.410.200.100.010.100.0587%5154 20012 1.420.240.120.030.120.0692%5155 20012 1.430.290.140.060.140.0894%5156 20012 1.440.350.160.090.160.1094%5257 20012 1.450.410.180.130.190.1394%5358 20012 1.460.480.200.180.220.1795%5359 20012 1.470.560.220.240.250.2095%5460 20012 1.480.640.240.310.290.2595%5562 20012 1.490.740.260.380.320.3094%5663 20012 1.4100.840.280.470.360.3694%5865 20012 1.4110.960.300.560.400.4294%5966 20012 1.412 1.080.320.660.450.4994%6068 20012 1.413 1.210.340.770.490.5794%6270 20012 1.414 1.350.360.890.540.6594%6472 20012 1.415 1.500.38 1.020.590.7593%6674 20012 1.416 1.660.40 1.160.650.8493%6876 20012 1.417 1.830.42 1.310.700.9593%7078 20012 1.418 2.010.44 1.480.76 1.0693%7381 20012 1.419 2.200.46 1.650.83 1.1992%7583 20012 1.420 2.410.48 1.830.89 1.3292%7886 20012 1.421 2.630.50 2.030.96 1.4692%8189 20012 1.422 2.860.52 2.24 1.04 1.6192%8492 20012 1.423 3.100.54 2.47 1.11 1.7791%8795 20012 1.424 3.360.56 2.71 1.19 1.9491%9198 20012 1.425 3.630.58 2.96 1.28 2.1291%94101 20014 1.410.220.120.010.110.0586%5155 20014 1.420.260.140.030.140.0691%5156 20014 1.430.310.160.060.160.0893%5157 20014 1.440.370.190.090.190.1094%5258 20014 1.450.440.210.130.220.1394%5359 20014 1.460.510.230.180.250.1794%5360 20014 1.470.590.250.240.280.2194%5462 20014 1.480.680.280.300.320.2594%5563 20014 1.490.770.300.380.350.3194%5664 20014 1.4100.880.320.460.390.3694%5866 20014 1.4110.990.350.550.430.4394%5968 20014 1.412 1.110.370.650.470.5094%6169 20014 1.413 1.240.390.760.520.5894%6271 20014 1.414 1.380.420.870.570.6793%6473 20014 1.415 1.530.44 1.000.620.7693%6675 20014 1.416 1.690.46 1.140.670.8693%6877 20014 1.417 1.870.48 1.290.720.9793%7079 20014 1.418 2.050.51 1.440.78 1.0892%7381 20014 1.419 2.240.53 1.610.84 1.2192%7684 20014 1.420 2.440.55 1.790.90 1.3492%7886 20014 1.421 2.660.58 1.990.97 1.4992%8189 20014 1.422 2.890.60 2.19 1.03 1.6491%8492 20014 1.423 3.130.62 2.41 1.11 1.8091%8894 20014 1.424 3.380.64 2.64 1.18 1.9891%9197 20014 1.425 3.650.67 2.89 1.26 2.1691%95101

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