MURS120PBF Datasheet, PDF (4/6 Pages) International Rectifier – Ultrafast Rectifier

MURS120PbF
Bulletin PD-20877 11/04
180
170
DC
160
Square wave (D = 0.50)
Rated Vr applied
150
see note (3)
140
0
0.4
0.8
1.2
1.6
Average Forward Current - IF_(AV)(A)
Fig. 5 - Max. Allowable Lead Temperature
Vs. Average Forward Current
100
Tj = 25˚C
10
Vr = 30V
If = 1A
1
100
di _F /dt (A/µs )
1000
Fig. 7 - Typical Reverse Recovery vs. di _F /dt
1
0.8
RMS Limit
0.6
D = 0.01
D = 0.02
0.4
D = 0.05
D = 0.1
D = 0.2
0.2
D = 0.5
DC
0
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6
Average Forward Current - IF_(AV) (A)
Fig. 6 - Forward Power Loss Characteristics
10
Tj = 25˚C
Vr = 30V
If = 1A
1
100
1000
di _F /dt (A/µs )
Fig. 8 - Typical Stored Charge vs. di _F /dt
(3) Formula used: T_C = T_J - (Pd + Pd_REV) x R_thJC ;
Pd = Forward Power Loss = I_F(AV) x V_FM @ (I_F(AV) / D) (see Fig. 6);
Pd_REV = Inverse Power Loss = V_R1 x I_R (1 - D); I_R @ V_R1= rated V_R
4
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