TOP252-262
Typical Performance Characteristics (cont.)
6
5.5
5
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
VX = 1.354 - 1147.5 × |IX| ꢀ 1.759 × 106 ×
(IX)2 with -180 MA ꢁ IX ꢁ -25 MA
4.5
4
3.5
3
2.5
2
0
-200
0
100
200
300
400
500
-150
-100
-50
0
VOLTAGE-MONITOR Pin Current (MA)
EXTERNAL CURRENT LIMIT Pin Current (MA)
Figure 62a. VOLTAGE-MONITOR Pin vs. Current.
Figure 62b. EXTERNAL CURRENT LIMIT Pin Voltage vs. Current.
6
5
4
3
1.6
VM = 1.354 - 1147.5 × |IM| ꢀ 1.759 × 106 ×
(IM)2 with -180 MA ꢁ IM ꢁ -25 MA
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
2
See expanded
1
0
version
(Figure 63b)
-200 -100
0
100 200 300 400 500
-200
-150
-100
-50
0
MULTI-FUNCTION Pin Current (MA)
Figure 63a. MULTI-FUNCTION Pin Voltage vs. Current.
MULTI-FUNCTION Pin Current (MA)
Figure 63b. MULTI-FUNCTION Pin Voltage vs. Current (Expanded).
1.2
1.0
0.8
0.6
0.4
0.2
1.2
1.0
0.8
0.6
0.4
0.2
0
0
-50 -25
0
25 50 75 100 125 150
-50 -25
0
25 50 75 100 125 150
Junction Temperature (oC)
Junction Temperature (oC)
Figure 64. Control Current Out at 0% Duty Cycle vs. Temperature.
Figure 65. Maximum Duty Cycle Reduction Onset Threshold
Current vs. Temperature.
41
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Rev. F 01/09
POWERINT [ Power Integrations ]
