EPR-33 Datasheet, PDF (18/32 Pages) Power Integrations, Inc. – Engineering Prototype Report for EP 33 - 45 W LCD Monitor External Power Supply using TOP247Y (TOPSwitch-GX)

EPR-33 – 45 W External Adapter Supply
28-Mar-2003
10 Thermal Performance
Item
Temperature (°C)
90 115 230
VAC VAC VAC
90
VAC
115
VAC
230
VAC
Thermistor (RT1)
73
64
44
93
80
65
Balun (L1)
48
42
32
78
67
58
Bridge (BR1)
72
61
49
97
85
71
TOPSwitch-GX (U1) 60
53
52
91
84
78
Clamp Zener (VR1) 93
84
70
115
103
92
Transformer (T1)
64
60
56
90
89
80
Rectifier (D3)
83
80
73
107
102
98
Ambient
25
25
26
50
50
49
Figure 11 – Infrared Thermograph of EP-33, 90 VAC Input, Full Load, 25 °C Ambient.
Power Integrations, Inc.
Tel: [phone] Fax: [phone]
www.powerint.com
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