T0P243G
| Model | T0P243G |
| Description | Family Extended Power, Design Flexible,Integrated Off-line Switcher |
| PDF file | Total 48 pages (File size: 769K) |
| Chip Manufacturer | POWERINT |
TOP242-249
Typical Performance Characteristics (cont.)
PI-2688-102700
LINE SENSE Pin Voltage (V)
EXTERNAL CURRENT LIMIT
Pin Voltage (V)
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
0
100
200
300
400
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
V
X
= 1.33 -
I
X
x
0.66 kΩ
-200
µA
≤
I
X
≤
-25
µA
-240
-180
-120
-60
0
LINE-SENSE Pin Current (µA)
Figure 62a. LINE-SENSE Pin Voltage vs. Current.
MULTI-FUNCTION Pin Voltage (V)
PI-2542-102700
EXTERNAL CURRENT LIMIT Pin Current (µA)
Figure 62b. EXTERNAL CURRENT LIMIT Pin Voltage
vs. Current.
MULTI-FUNCTION Pin Voltage (V)
5
4
3
2
1
See
Expanded
Version
1.4
1.2
1.0
0.8
0.6
0.4
0.2
V
M
= 1.37 -
I
M
x
1 kΩ
-200
µA
≤
I
M
≤
-25
µA
0
-300 -200 -100 0
100 200 300 400 500
0
-300 -250
-200
-150 -100
-50
0
MULTI-FUNCTION Pin Current (µA)
MULTI-FUNCTION Pin Current (µA)
Figure 63b. MULTI-FUNCTION Pin Voltage vs.
Current (Expanded).
PI-2563-033001
Figure 63a. MULTI-FUNCTION Pin Voltage vs. Current.
PI-2562-033001
1.2
1.0
0.8
0.6
0.4
0.2
1.2
Onset Threshold Current
(Normalized to 25
°C)
CONTROL Current
(Normalized to 25
°C)
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 (°C)
Figure 64. Control Current Out at 0% Duty Cycle vs.
Temperature.
Junction Temperature (°C)
Figure 65. Max. Duty Cycle Reduction Onset Threshold
Current vs. Temperature.
August 8, 2000
E
7/01
PI-2541-102700
6
1.6
PI-2689-102300
6.0
1.6
43
