IRFH4257DPBF_15 Datasheet, PDF (7/12 Pages) International Rectifier – Control and synchronous MOSFETs in one package

Q1 - Control FET
70
60
Limited By Package
50
40
30
20
10
0
25
50
75
100 125 150
TC , Case Temperature (°C)
Fig 19. Maximum Drain Current vs. Case Temperature
2.0
1.8
1.6
1.4
ID = 35µA
1.2
1.0
0.8
-75 -50 -25 0 25 50 75 100 125 150
TJ , Temperature ( °C )
Fig 21. Threshold Voltage vs. Temperature
180
160
ID
TOP
6.1A
140
10A
BOTTOM 25A
120
100
80
60
40
20
0
25
50
75
100 125 150
Starting TJ , Junction Temperature (°C)
Fig 23. Maximum Avalanche Energy vs. Drain Current
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IRFH4257DPbF
Q2 - Synchronous FET
120
100
Limited By Package
80
60
40
20
0
25
50
75
100 125 150
TC , Case Temperature (°C)
Fig 20. Maximum Drain Current vs. Case Temperature
2.2
2.0
1.8
1.6
ID = 1.0mA
1.4
1.2
1.0
0.8
-75 -50 -25 0 25 50 75 100 125 150
TJ , Temperature ( °C )
Fig 22. Threshold Voltage vs. Temperature
1600
1400
1200
ID
TOP
3.4A
7.0A
BOTTOM 25A
1000
800
600
400
200
0
25
50
75
100 125 150
Starting TJ , Junction Temperature (°C)
Fig 24. Maximum Avalanche Energy vs. Drain Current
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September 15, 2014