IRFB4115PBF_15 Datasheet, PDF (5/9 Pages) International Rectifier – High Efficiency Synchronous Rectification in SMPS

IRFB4115PbF
1
D = 0.50
0.1
0.20
0.10
0.05
0.01
0.02
0.01
0.001
0.0001
1E-006
SINGLE PULSE
( THERMAL RESPONSE )
1E-005
0.0001
τ_{J τJ}
τ_{1 τ1}
R _{1R 1}
C i= τi/R i
Ci= τi/Ri
R_{2R 2}
Ri (°C/W) τi (sec)
τ_{CτC 0.245 0.0059149}
τ_{2 τ2}
0.155 0.0006322
Notes:
1. Duty Factor D = t1/t2
2. Peak Tj = P dm x Zthjc + Tc
0.001
0.01
0.1
t1 , Rectangular Pulse Duration (sec)
Fig 13. Maximum Effective Transient Thermal Impedance, Junction-to-Case
1000
100
Allowed avalanche Current vs avalanche
pulsewidth, tav, assuming ∆Tj = 150°C and
Tstart = 25°C (Single Pulse)
10
1
Allowed avalanche Current vs avalanche
pulsewidth, tav, assuming ∆Τ j = 25°C and
Tstart = 150°C.
0.1
1.0E-06
1.0E-05
1.0E-04
tav (sec)
1.0E-03
Fig 14. Typical Avalanche Current vs.Pulsewidth
1.0E-02
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November 11, 2014