CSD87384M Datasheet, PDF (9/21 Pages) Texas Instruments – Synchronous Buck NexFET Power Block II

CSD87384M
www.ti.com
SLPS415B – SEPTEMBER 2013 – REVISED JANUARY 2014
Typical Power Block MOSFET Characteristics (continued)
T_A = 25°C, unless stated otherwise.
TEXT ADDED FOR SPACING
1.6
I_D =25A
1.5 _{VGS = 8V}
1.4
1.3
1.2
1.1
1
0.9
0.8
0.7
−75
−25
25
75
125
175
T_C - Case Temperature (ºC)
G001
Figure 21. Control MOSFET Normalized R_DS(on)
TEXT ADDED FOR SPACING
1.8
1.7 ^{ID = 25A}
1.6 ^{VGS = 8V}
1.5
1.4
1.3
1.2
1.1
1
0.9
0.8
0.7
0.6
−75
−25
25
75
125
T_C - Case Temperature (ºC)
Figure 22. Sync MOSFET Normalized R_DS(on)
175
G001
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)
G001
Figure 23. 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)
G001
Figure 24. Sync MOSFET Body Diode
TEXT ADDED FOR SPACING
100
TEXT ADDED FOR SPACING
100
10
10
T_C = 25°C
T_C = 125°C
1
0.01
0.1
1
t_(AV) - Time in Avalanche (ms)
G001
Figure 25. Control MOSFET Unclamped Inductive Switching
T_C = 25°C
T_C = 125°C
1
0.01
0.1
1
t_(AV) - Time in Avalanche (ms)
G001
Figure 26. Sync MOSFET Unclamped Inductive Switching
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