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       MBR0540T1G, NRVB0540T1G, MBR0540T3G, NRVB0540T3G http://onsemi.com 3 Figure 3. Typical Reverse Current Figure 4. Maximum Reverse Current 40 100E-9 0 VR, REVERSE VOLTAGE (VOLTS) 100E-3 1.0E-3 100E-6 10E-6 1.0E-6 VR, REVERSE VOLTAGE (VOLTS) I 10 20 30 , REVERSE CURRENT (AMPS) R 40 100E-9 0 I 10 20 30 , MAXIMUM REVERSE CURRENT (AMPS) R TJ = 125 ?C TJ = 100 ?C TJ = 25 ?C TJ = 100 ?C TJ = 25 ?C 10E-3 100E-3 1.0E-3 100E-6 10E-6 1.0E-6 10E-3 Figure 5. Current Derating Figure 6. Forward Power Dissipation 20 6040 0 0 TL, LEAD TEMPERATURE (?C) 0.8 0.4 0.3 0.2 0.1 IO, AVERAGE FORWARD CURRENT (AMPS) 0.1 0 0.45 0.40 0.35 0.15 0.05 0 0.2 0.3 0.5 0.80.4 0.6 0.7 , AVERAGE FORWARD CURRENT (AMPS) I O 80 120100 0.5 0.10 P FO , AVERAGE POWER DISSIPATION (WATTS) 140 0.6 SQUARE WAVE dc Ipk/Io = Ipk/Io = 5 Ipk/Io = 10 Ipk/Io = 20 Ipk/Io = 20 Ipk/Io = 10 Ipk/Io = 5 Ipk/Io = SQUARE WAVE dc 0.7 0.30 0.20 0.25 FREQ = 20 kHz Figure 7. Capacitance Figure 8. Typical Operating Temperature Derating* 5.0 10 20 25 35 40 30 3530 5.0 10 2015 0 VR, REVERSE VOLTAGE (VOLTS) 100 10 VR, DC REVERSE VOLTAGE (VOLTS) 25 40 110 0 118 114 112 C, CAPACITANCE (pF) T 15 116 120 126 , DERATED OPERATING TEMPERATURE ( C) J ? * Reverse power dissipation and the possibility of thermal runaway must be considered when operating this device under any reverse voltage conditions. Calculations of TJ therefore must include forward and reverse power effects. The allowable operating TJ may be calculated from the equation: T J = T Jmax ? r(t)(Pf + Pr) where r(t) = thermal impedance under given conditions, Pf = forward power dissipation, and Pr = reverse power dissipation This graph displays the derated allowable TJ due to reverse bias under DC conditions only and is calculated as TJ = T Jmax ? r(t)Pr, where r(t) = Rthja. For other power applications further calculations must be performed. Rtja = 118 ?C/W 180?C/W 149?C/W 206?C/W 228?C/W TJ = 25 ?C 122 124 |