IRFS4115PBF_15 Datasheet, PDF (5/9 Pages) International Rectifier – High Efficiency Synchronous Rectification in SMPS

IRFS/SL4115PbF
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}
τ_{2 τ2}
0.155
0.0059149
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
50
IF = 42A
VR = 130V
40 _{TJ = 25°C}
TJ = 125°C
30
50
IF = 62A
VR = 130V
40 _{TJ = 25°C}
TJ = 125°C
30
20
20
10
10
0
0
200 400 600 800 1000
diF /dt (A/μs)
Fig. 14 - Typical Recovery Current vs. di_f/dt
2500
2000
1500
IF = 42A
VR = 130V
TJ = 25°C
TJ = 125°C
0
0
200 400 600 800 1000
diF /dt (A/μs)
Fig. 15 - Typical Recovery Current vs. di_f/dt
3000
2400
1800
IF = 62A
VR = 130V
TJ = 25°C
TJ = 125°C
1000
1200
500
600
0
0
200 400 600 800 1000
diF /dt (A/μs)
Fig. 16 - Typical Stored Charge vs. di_f/dt
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0
0
200 400 600 800 1000
diF /dt (A/μs)
Fig. 17 - Typical Stored Charge vs. di_f/dt
5