TOP268KG Power Integrations, TOP268KG Datasheet - Page 33

• Manufacturer Part Number: TOP268KG
• Description: AC/DC Switching Converters Int Off-Line Switchr EcoSmart,50W/75W
• Manufacturer: Power Integrations
• Type: Off Line Switcherr

Specifications of TOP268KG

• Output Voltage: 85 VAC to 265 VAC
• Duty Cycle (max): 83 %
• Switching Frequency: 132 KHz
• Operating Temperature Range: - 40 C to + 150 C
• Mounting Style: SMD/SMT
• Package / Case: eSOP-12
• Maximum Operating Temperature: + 150 C
• Minimum Operating Temperature: - 40 C
• Number Of Outputs: 1
• Output Current: 6.88 A
• Output Power: 30 W, 50 W
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Typical Performance Characteristics (cont.)
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Figure 46. Control Current Out at 0% Duty Cycle vs. Temperature.
Figure 48. Output Characteristics.
Figure 44.
1.2
1.0
0.8
0.6
0.4
0.2
5
4
3
2
1
0
5.5
4.5
3.5
2.5
0
2
4
3
6
5
VOLTAGE-MONITOR Pin Current (µA)
0
-50 -25
0
VOLTAGE-MONITOR Pin vs. Current.
2
Junction Temperature (°C)
100
4
Drain Voltage (V)
0
T
T
6
CASE
CASE
200
25
8 10 12 14 16 18 20
= 25 °C
= 100 °C
50
300
75 100 125 150
TOP271
TOP270
TOP269
TOP268
TOP267
TOP266
TOP265
TOP264
Scaling Factors:
400
1.62
1.42
1.17
1.00
0.85
0.61
0.42
0.32
500
Figure 45. EXTERNAL CURRENT LIMIT Pin Voltage vs. Current.
Figure 47. Maximum Duty Cycle Reduction Onset Threshold
EXTERNAL CURRENT LIMIT Pin Current (µA)
Figure 49. I
-0.5
-1.5
-2.5
1.2
1.0
0.8
0.6
0.4
0.2
0.5
0
-1
-2
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
1
0
-200
0
-50 -25
0
Current vs. Temperature.
C
V
(I
vs. DRAIN Voltage.
X
X
V
)
= 1.354 - 1147.5 × I
2
Junction Temperature (°C)
C
with -180 µA < I
= 5 V
20
Drain Pin Voltage (V)
-150
0
25
40
-100
X
50
TOP264-271
< -25 µA
X
60
 + 1.759 × 10
75 100 125 150
-50
80
6
×
100
0
Rev. C 11/10
33