TPS54260
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SLVSA86 –MARCH 2010
TYPICAL CHARACTERISTICS (continued)
SS/TR DISCHARGE CURRENT vs JUNCTION TEMPERATURE
575
SWITCHING FREQUENCY vs VSENSE
100
80
60
40
20
0
VI = 12 V
VI = 12 V,
TJ = 25°C
500
425
350
275
200
-50
0
50
100
150
0
0.2
0.4
VSENSE - V
0.6
0.8
TJ - Junction Temperature - °C
Figure 13.
Figure 14.
SHUTDOWN SUPPLY CURRENT vs JUNCTION TEMPERATURE
SHUTDOWN SUPPLY CURRENT vs INPUT VOLTAGE (Vin)
2
2
VI = 12 V
TJ = 25°C
1.5
1.5
1
1
0.5
0.5
0
-50
0
-25
0
25
50
75
100
125
150
0
10
20
30
40
50
60
TJ - Junction Temperature - °C
VI - Input Voltage - V
Figure 15.
Figure 16.
VIN SUPPLY CURRENT vs JUNCTION TEMPERATURE
VIN SUPPLY CURRENT vs INPUT VOLTAGE
210
170
VI = 12 V,
TJ = 25oC,
VI(VSENSE) = 0.83 V
190
VI(VSENSE) = 0.83 V
170
150
130
110
150
130
110
90
70
0
20
40
VI - Input Voltage - V
60
-50
0
50
100
150
TJ - Junction Temperature - °C
Figure 17.
Figure 18.
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