WDD20-03S1U(2008) Ver la hoja de datos (PDF) - CHINFA ELECTRONICS
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WDD20-03S1U Datasheet PDF : 8 Pages
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WDD20U SERIES
SINGLE & DUAL OUTPUT
SPECIFICATION
All Specifications Typical At Nominal Line, Full Load, 25oC Unless Otherwise Noticed
GENERAL
Characteristics
Switching frequency
Isolation voltage
Isolation resistance
Ambient temperature
Case temperature
Derating
Storage temperature
Dimension
Cooling
Case material
Conditions
Vi nom, Io nom
Input / Output
Input / Output, @ 500VDC
Vi nom, 3.3V & 5Voutput models
Io nom 12V, 15V & dual output models
Operating at Vi nom, Io nom
Vi nom
Non operational
L50.8 x W40.6 x H10.2
Free air convection
Metal
min.
1,500
100
-40
-40
typ.
250
See derating curve
-40
max.
+ 60
+ 71
+ 100
+ 100
unit
KHz
VDC
M
oC
oC
oC
% / oC
oC
mm
INPUT SPECIFICATIONS
Characteristics
Conditions
Input voltage range
Ta min ... Ta max, Io nom
No load input current
Input voltage w/o damage
Startup voltage
Input filter
Vi nom, Io = 0
Io nom
Io nom
Pi type
24V models
48V models
24V models
48V models
24V models
48V models
min.
9
18
typ.
24
4488
max.
36
75
30
20
40
80
8.5
16
unit
VDC
VDC
mA
mA
VDC
VDC
VDC
VDC
OUTPUT SPECIFICATIONS
Characteristics
Conditions
Output voltage accuracy
Vi nom, Io nom
Minimum load
Vi nom single output models
dual output models (each output)
Line regulation
Io nom, Vi min ...Vi max
Load regulation
Vi nom, Io 0 ... Io nom, single output models
Vi nom, Io min ... Io nom, dual output models
Transient recovery time
Vi nom, Io 0 ...1/2 Io nom
Temperature coefficient
Vi nom, Io nom
Ripple & noise
Vi nom, Io nom, 3.3V & 5V output models
BW = 20MHz 12V, 15V & dual
Voltage trim range
Vi nom
3.3V output models
5V, 12V, 15V & dual
Efficiency
Vi nom, Io nom, Po / Pi
min. typ. max.
2
0
10
1
2
5
500
0.02
100
150
5
10
Up to 84%, See model list
unit
%
%
%
%
%
%
S
% / oC
mV
mV
%
%
www.chinfa.com
2008.09.23
sales@chinfa.com
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