WDD30U SERIES
DC - DC CONVERTER
23 ~ 30W SINGLE & DUAL OUTPUT
FEATURES
LOW COST
2:1 WIDE INPUT RANGE
I/O ISOLATION
INPUT Pi FILTER
SHORT CIRCUIT PROTECTION
HIGH PERFORMANCE
2 YEARS WARRANTY
MODEL LIST
MODEL NO.
INPUT
VOLTAGE
9~18 VDC
9~18 VDC
9~18 VDC
9~18 VDC
18~36 VDC
18~36 VDC
18~36 VDC
18~36 VDC
35~75 VDC
35~75 VDC
35~75 VDC
35~75 VDC
OUTPUT
OUTPUT
WATTAGE
VOLTAGE
Single Output Models
23 WATTS
25 WATTS
30 WATTS
30 WATTS
23 WATTS
25 WATTS
30 WATTS
30 WATTS
23 WATTS
25 WATTS
30 WATTS
30 WATTS
+3.3 VDC
+ 5 VDC
+ 12 VDC
+ 15 VDC
+3.3 VDC
+ 5 VDC
+ 12 VDC
+ 15 VDC
+3.3 VDC
+ 5 VDC
+ 12 VDC
+ 15 VDC
OUTPUT
CURRENT
7000 mA
5000 mA
2500 mA
2000 mA
7000 mA
5000 mA
2500 mA
2000 mA
7000 mA
5000 mA
2500 mA
2000 mA
EFF.
(typ.)
81%
85%
84%
85%
82%
86%
88%
89%
83%
86%
88%
89%
EFF.
(min.)
79%
83%
82%
83%
80%
84%
86%
87%
81%
84%
86%
87%
WDD30 - 03S1U
WDD30 - 05S1U
WDD30 - 12S1U
WDD30 - 15S1U
WDD30 - 03S2U
WDD30 - 05S2U
WDD30 - 12S2U
WDD30 - 15S2U
WDD30 - 03S3U
WDD30 - 05S3U
WDD30 - 12S3U
WDD30 - 15S3U
Dual Output Models
WDD30 - 05D1U
WDD30 - 12D1U
WDD30 - 15D1U
WDD30 - 05D2U
WDD30 - 12D2U
WDD30 - 15D2U
WDD30 - 05D3U
WDD30 - 12D3U
WDD30 - 15D3U
9~18 VDC
9~18 VDC
9~18 VDC
18~36 VDC
18~36 VDC
18~36 VDC
35~75 VDC
35~75 VDC
35~75 VDC
25 WATTS
30 WATTS
30 WATTS
25 WATTS
30 WATTS
30 WATTS
25 WATTS
30 WATTS
30 WATTS
5 VDC
12 VDC
15 VDC
5 VDC
12 VDC
15 VDC
5 VDC
12 VDC
15 VDC
2500 mA
1250 mA
1000 mA
2500 mA
1250 mA
1000 mA
2500 mA
1250 mA
1000 mA
84%
85%
86%
86%
88%
89%
86%
88%
89%
82%
83%
84%
84%
86%
87%
84%
86%
87%
www.chinfa.com
2008.09.23
sales@chinfa.com
WDD30U SERIES
SINGLE & DUAL OUTPUT
CIRCUIT SCHEMATIC
Block diagram for WDD30U series with single output
Vi +
Vo +
Switching
Device
Rectifier
Vi -
PWM
Controller
ON / OFF
Opto -
Isolation
Reference &
Error Amp.
Vo -
Trim
Block diagram for WDD30U series with dual output
Vi +
Rectifier
Switching
Device
Rectifier
Vi -
Vo +
com
Vo -
PWM
Controller
Opto -
Isolation
Reference &
Error Amp.
Trim
ON / OFF
www.chinfa.com
2008.09.23
sales@chinfa.com
WDD30U SERIES
SINGLE & DUAL OUTPUT
SPECIFICATION
All Specifications Typical At Nominal Line, Full Load, 25 C Unless Otherwise Noticed
o
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,
Io nom
3.3V & 5V output models
12V, 15V & dual output models
min.
1,500
100
-40
-40
typ.
250
max.
unit
KHz
VDC
M
+ 60
+ 71
+ 100
o
o
o
o
C
C
C
Operating at Vi nom, Io nom
Vi nom
Non operational
L40.6 x W50.8 x H10.2
Free air convection
Metal
See derating curve
-40
%/ C
+ 100
C
mm
o
INPUT SPECIFICATIONS
Characteristics
Input voltage range
Conditions
Ta min ... T max, Io nom
a
min.
9
18
35
typ.
12
48
24
48
30
20
15
max.
18
36
75
unit
VDC
VDC
VDC
mA
No load input current
Vi nom, Io = 0
12V models
24V models
48V models
Input voltage w/o damage
Io nom
12V models
24V models
48V models
20
40
80
8.5
16
33
VDC
VDC
VDC
VDC
Startup voltage
Io nom
12V models
24V models
48V models
Input filter
Pi type
OUTPUT SPECIFICATIONS
Characteristics
Output voltage accuracy
Minimum load
Line regulation
Load regulation
Transient recovery time
Temperature coefficient
Ripple & noise
Voltage trim range
Efficiency
www.chinfa.com
2008.09.23
Vi nom
Conditions
Vi nom, Io nom
single output models
dual output models (each output)
min.
0
10
typ.
max.
2
unit
%
%
%
Io nom, Vi min ...Vi max
Vi nom, Io 0 ... Io nom, single output models
Vi nom, Io min ... Io nom, dual output models
1
2
5
500
0.02
100
150
5
10
Up to 89%, See model list
%
%
%
S
% / C
mV
mV
%
%
o
Vi nom, Io 0 ...1/2 Io nom
Vi nom, Io nom
Vi nom, Io nom,
3.3V & 5V output models
BW = 20MHz
12V, 15V & dual
Vi nom
3.3V output models
5V, 12V, 15V & dual
Vi nom, Io nom, Po / Pi
sales@chinfa.com
WDD30U SERIES
SINGLE & DUAL OUTPUT
SPECIFICATION
CONTROL AND PROTECTION
Remote ON / OFF
Input reversed
Output short circuit
ON: opened or 8 ~ 10VDC applied, reference to input GND
OFF: -0.3 ~ 2VDC applied, reference to input GND
Shunt diode built in, external fuse recommended
Continuous
APPROVALS AND STANDARD
UL/cUL
TUV
CE
UL60950-1
EN60950-1
EN61204-3(Class A for EMI)
MECHANISM & PIN CONFIGURATION
mm [inch]
50.80 [2.00]
17.78 [0.70]
2.54 [0.10]
45.72 [1.80]
5.08 [0.20]
5
10.16 [0.40]
1
2
4
6
40.64 [1.60]
10.16 [0.4]
5.00 [0.20]
DIA 1.00 [0.04]
5.08 [0.20]
10.16 [0.40]
7.62 [0.30]
10.16 [0.40]
7
10.16 [0.40]
8
BOTTOM VIEW
PHYSICAL CHARACTERISTICS
CASE SIZE
CASE MATERIAL
WEIGHT
40.6 x 50.8 x 10.2 mm 1.6 x 2 x 0.4 inches
Metal
60 g
PIN ASSIGNMENT
GENERAL
PIN NO.
SINGLE
DUAL
1
Vi+
Vi+
2
Vi -
Vi -
4
S. D.
S. D.
5
NO PIN
Vo +
6
Vo +
com
7
Vo -
Vo -
8
Trim
Trim
S.D. : REMOTE ON / OFF
DERATING
100
Power out [ % ]
12V, 15V & dual
NATURAL
CONVECTION
COOLING
3.3V & 5V
0
-40
www.chinfa.com
2008.09.23
60
Ambient Temperature [
o
C ]
71
100
sales@chinfa.com
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