TOP268KG-TL Power Integrations, TOP268KG-TL Datasheet - Page 33

• Manufacturer Part Number: TOP268KG-TL
• Description: IC OFFLINE SW 50W 73W ESOP-12
• Manufacturer: Power Integrations
• Series: TOPSwitch®-JXr

Specifications of TOP268KG-TL

• Output Isolation: Isolated
• Frequency Range: 66 ~ 132kHz
• Voltage - Output: 725V
• Power (watts): 50W
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 12-BSOP (0.350", 8.89mm Width) Exposed Pad
• 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