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AN4165 Datasheet(PDF) 20 Page - STMicroelectronics

Part # AN4165
Description  This document describes a 12 V - 1 A power supply set in non-isolated flyback topology
PDF  37 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN4165 Datasheet(HTML) 20 Page - STMicroelectronics

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AN4165
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Doc ID 023661 Rev 1
Figure 22.
Efficiency vs. VIN at PIN = 1 W
Another requirement (EuP lot 6 ) is that the input power should be less than 500 mW when
the converter is loaded with 250 mW. The converter can satisfy even this requirement, as
shown in
Figure 23.
Figure 23.
PIN at POUT = 0.25 W
AM13378v1
50
55
60
65
70
75
80
85
90
80
110
140
170
200
230
260
V
IN [V AC]
AM11571v2
0.25
0.3
0.35
0.4
0.45
0.5
80
110
140
170
200
230260
Vin[V]



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