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FDB8443 Datasheet(PDF) 4 Page - Fairchild Semiconductor |
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FDB8443 Datasheet(HTML) 4 Page - Fairchild Semiconductor |
4 / 7 page FDB8443 Rev. A www.fairchildsemi.com 4 Typical Characteristics Figure 1. Normalized Power Dissipation vs Case Temperature Figure 2. Maximum Continuous Drain Current vs Case Temperature Figure 3. Normalized Maximum Transient Thermal Impedance Figure 4. Peak Current Capability 0 25 50 75 100 125 150 175 0.0 0.2 0.4 0.6 0.8 1.0 1.2 TC, CASE TEMPERATURE(oC) 25 50 75 100 125 150 175 0 40 80 120 160 200 CURRENT LIMITED BY PACKGAE VGS = 10V TC, CASE TEMPERATURE(oC) 10 -5 10 -4 10 -3 10 -2 10 -1 10 0 10 1 1E-3 0.01 0.1 1 SINGLE PULSE D = 0.50 0.20 0.10 0.05 0.02 0.01 t, RECTANGULAR PULSE DURATION(s) DUTY CYCLE - DESCENDING ORDER 2 NOTES: DUTY FACTOR: D = t1/t2 PEAK TJ = PDM x ZθJC x RθJC + TC PDM t1 t2 10 -5 10 -4 10 -3 10 -2 10 -1 10 0 10 1 10 100 1000 TRANSCONDUCTANCE MAY LIMIT CURRENT IN THIS REGION V GS = 10V SINGLE PULSE t, RECTANGULAR PULSE DURATION(s) 5000 TC = 25oC I = I2 175 - TC 150 FOR TEMPERATURES ABOVE 25oC DERATE PEAK CURRENT AS FOLLOWS: |
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