IRFR3704ZPBF_15 Datasheet, PDF (5/12 Pages) International Rectifier – High Frequency Synchronous Buck Converters for Computer Processor Power

IRFR/U3704ZPbF
60
50
Limited By Package
40
30
20
10
0
25
50 75 100 125 150 175
TC , Case Temperature (°C)
Fig 9. Maximum Drain Current vs.
Case Temperature
2.5
2.0
ID = 250µA
1.5
1.0
0.5
-75 -50 -25 0 25 50 75 100 125 150 175 200
TJ , Temperature ( °C )
Fig 10. Threshold Voltage vs. Temperature
10
D = 0.50
1
0.20
0.10
0.05
0.1
0.02
0.01
SINGLE PULSE
0.01
( THERMAL RESPONSE )
τ_{J τJ}
τ_{1 τ1}
R_1R1
Ci= τi/Ri
Ci= i/Ri
R_2R2
τ_{2 τ2}
R_3R3
τ_{3 τ3}
0.001
1E-006
1E-005
0.0001
0.001
t1 , Rectangular Pulse Duration (sec)
R_4R4
τ_Cτ
Ri (°C/W)
0.8190
1.6018
τi (sec)
0.000092
0.000698
τ_{4 τ4}
0.6592 0.009033
0.0418 0.046618
Notes:
1. Duty Factor D = t1/t2
2. Peak Tj = P dm x Zthjc + Tc
0.01
0.1
Fig 11. Maximum Effective Transient Thermal Impedance, Junction-to-Case
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