IRF8788TRPBF Datasheet, PDF (5/9 Pages) International Rectifier – Synchronous MOSFET for Notebook Processor Power

IRF8788PbF
24
20
16
12
8
4
0
25
50
75
100
125
150
TA , Ambient Temperature (°C)
2.5
ID = 250μA
2.0
ID = 100μA
1.5
1.0
-75 -50 -25 0 25 50 75 100 125 150
TJ , Temperature ( °C )
Fig 9. Maximum Drain Current vs.
Ambient Temperature
Fig 10. Threshold Voltage vs. Temperature
100
D = 0.50
10
1
0.1
0.01
1E-006
0.20
0.10
0.05
0.02
0.01
Ri (°C/W) τι (sec)
0.0141064 0.000057
0.0210000 0.000286
R1
R2
R3
R4
R5 R6
R7
R8
0.2184000
τJ
R1
R2
R3
R4 R5 R6
R7
R8
0.8204000
τJ
τa 4.7558194
τ1
τ1
τ2
τ2
τ3
τ3
τ4
τ4
τ5
τ5
τ6
τ6
τ7
τ7
τ8
τ8
0.4648000
28.9076170
0.000375
0.001902
0.004544
0.013931
0.038563
Ci= τi/Ri
Ci i/Ri
15.1191958 2.069546
SINGLE PULSE
( THERMAL RESPONSE )
Notes:
1. Duty Factor D = t1/t2
2. Peak Tj = P dm x Zthja + Tc
1E-005
0.0001
0.001
0.01
0.1
1
t1 , Rectangular Pulse Duration (sec)
10
100
Fig 11. Maximum Effective Transient Thermal Impedance, Junction-to-Ambient
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