TPS54260
SLVSA86 –MARCH 2010
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TYPICAL CHARACTERISTICS (continued)
PWRGD ON RESISTANCE vs JUNCTION TEMPERATURE
PWRGD THRESHOLD vs JUNCTION TEMPERATURE
115
100
VI = 12 V
VI = 12 V
VSENSE Rising
110
105
80
VSENSE Falling
60
40
100
95
VSENSE Rising
20
0
VSENSE Falling
90
85
-50
-25
0
25
50
75
100
125
150
-50
50
0
25
75
125
-25
100
150
TJ - Junction Temperature - °C
TJ - Junction Temperature - °C
Figure 19.
Figure 20.
BOOT-PH UVLO vs JUNCTION TEMPERATURE
INPUT VOLTAGE (UVLO) vs JUNCTION TEMPERATURE
3
2.5
2.3
2.75
2.50
2
1.8
1.5
2.25
2
-50
-25
0
25
50
75
100
125
150
-50
-25
0
25
50
75
100
125
150
TJ - Junction Temperature - °C
TJ - Junction Temperature - °C
Figure 21.
Figure 22.
SS/TR TO VSENSE OFFSET vs VSENSE
SS/TR TO VSENSE OFFSET vs TEMPERATURE
60
50
40
30
600
500
400
300
V(SS/TR) = 0.4 V
VI = 12 V
VI = 12 V,
TJ = 25oC
20
10
0
200
100
0
-50
-25
0
25
50
75
100
125
150
0
100
200
300
400
500
600
700
800
TJ - Junction Temperature - °C
VSENSE - mV
Figure 23.
Figure 24.
10
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