CSD87350Q5D Datasheet, PDF (8/20 Pages) Texas Instruments – Synchronous Buck NexFET™ Power Block

CSD87350Q5D
SLPS288C – MARCH 2011 – REVISED OCTOBER 2011
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TYPICAL POWER BLOCK MOSFET CHARACTERISTICS (continued)
T_A = 25°C, unless stated otherwise.
TEXT ADDED FOR SPACING
TEXT ADDED FOR SPACING
1.8
I_D = 20A
1.6 _{VGS = 8V}
1.8
I_D = 20A
1.6 _{VGS = 8V}
1.4
1.4
1.2
1.2
1
1
0.8
0.8
0.6
0.6
0.4
0.4
0.2
0.2
0
−75
−25
25
75
125
175
T_C - Case Temperature - ºC
Figure 22. Control MOSFET Normalized R_DS(on)
0
−75
−25
25
75
125
175
T_C - Case Temperature - ºC
Figure 23. Sync MOSFET Normalized R_DS(on)
TEXT ADDED FOR SPACING
100
TEXT ADDED FOR SPACING
100
10
10
1
1
0.1
0.1
0.01
0.01
0.001
0.0001
0
T_C = 25°C
T_C = 125°C
0.2
0.4
0.6
0.8
1
V_SD − Source-to-Drain Voltage - V
Figure 24. Control MOSFET Body Diode
0.001
0.0001
0
T_C = 25°C
T_C = 125°C
0.2
0.4
0.6
0.8
1
V_SD − Source-to-Drain Voltage - V
Figure 25. Sync MOSFET Body Diode
TEXT ADDED FOR SPACING
100
TEXT ADDED FOR SPACING
1000
10
T_C = 25°C
T_C = 125°C
1
0.01
0.1
1
10
t_(AV) - Time in Avalanche - ms
Figure 26. Control MOSFET Unclamped Inductive
Switching
100
10
T_C = 25°C
T_C = 125°C
1
0.01
0.1
1
10
t_(AV) - Time in Avalanche - ms
Figure 27. Sync MOSFET Unclamped Inductive Switching
8
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