WDD20-03S1(2010) 데이터 시트보기 (PDF) - CHINFA ELECTRONICS
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WDD20-03S1 Datasheet PDF : 4 Pages
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DERATING AND EFFICIENCY CURVE
Temperature derating curve
100
12V, 15V & dual
NATURAL
CONVECTION
COOLING
3.3V & 5V
0
-25
61 71
100
Ambient Temperature [ oC ]
WDD20 SERIES
SINGLE & DUAL OUTPUT
Efficiency Vs Input Voltage
WDD20-05S2
88
87
86
85
84
Io : Full Load
83
18 20 22 24 26 28 30 32 34 36
Input Voltage (V)
Fig. 1 Trim connection
( For Single output )
Vo +
6
Vo -
7
Trim
8
Rext 1
Vo +
6
Vo -
7
Trim
8
Rext 2
Efficiency Vs Output Load
WDD20-05S2
90
85
80
75
70
65
60
10 20 30
40 50 60 70
Output Load (%)
Vi : 24VDC
80 90 100
( For Dual output )
Vo +
5
com
6
Vo -
7
Trim
8
Rext 1
Vo +
5
com
6
Vo -
7
Trim
8
Rext 2
Table 1 Typical resistor values for various output voltage adjustment settings
Type
WDD20-03SX
Type
WDD20-05SX
WDD20-12SX
WDD20-15SX
WDD20-12DX
WDD20-15DX
Rext 1
Vo nom -2.5%
Vo nom -5%
1KΩ
0Ω
Vo nom -5%
Vo nom -10%
4.7KΩ
100Ω
30KΩ
20KΩ
150KΩ
56KΩ
120KΩ
56KΩ
180KΩ
75KΩ
Rext 2
Vo nom +2.5%
Vo nom +5%
10KΩ
4.7KΩ
Vo nom +5%
Vo nom +10%
4.7KΩ
470Ω
10KΩ
2KΩ
15KΩ
3KΩ
12KΩ
2KΩ
10KΩ
1.2KΩ
www.chinfa.com
2010.02.09
sales@chinfa.com
P4
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