WRB-YDK-3W Datasheet, PDF (1/4 Pages) Microdc power Technology Co., Ltd – 3W,Wide Input,ISOLATED®ULATEDSINGLEOUTPUT DC/DCConverters

WRB-YDK-3W Series
3W,Wide Input,ISOLATED&REGULATED SINGLE OUTPUT DC/DC Converters
Models
Order Code
Nominal
Input
Voltage
Rated
Output
Voltage
Output Current¹
Min.Load Full Load
Input
Current
Full load
Effcienc²
(Min.)
Isolation
Capacitance
MTTF³
FEATURES
◆RoHS compliant
◆Industry standard footprint
◆Effciency to 82%
◆Power density 0.90W/cm³
◆2:1 wide input range
◆Single isolated output
◆Short circuit protection
◆Low profile 24 pin case
◆UL 94V-0 package material
◆Operating temperature range -40℃ to 85℃
◆No heatsink required
◆Footprint 4.73cm
◆5V, 12V, 24V & 48V input
◆3.3V, 5V, 9V, 12V & 15V output
◆Internal SMD construction
◆Fully encapsulated
MODEL SELECTION
WRB^①05^②05^③Y^④ DK^⑤-3W^⑥
①Product Series
②Input Voltage
③Output Voltage
④2:1Wide Input Range
⑤DIP24k Package Style ⑥ Rated Power
APPLICATIONS
The WRB-YDK-3W series is a range of low profile DC/DC
converters offering a single regulated output over a 2:1 input
voltage range. All parts deliver 3W output power up to 85 ℃
without heatsinking, except the 4.5V to 9V input voltage
range which should be derated to 2W at the lower input
voltage. A flyback oscillator design with isolated feedback is
used to give regulation over the full operating range of 25%
to 100% of full load. It is strongly recommended that external
capacitors be used on input and output to guarantee
performance over full load and input voltage range.
MICRODC reserves the copyright
V (nom.)
V
mA
mA
mA
%
WRB0505YDK-3W
5
5
100-150 400-600
615
66
WRB0509YDK-3W
5
9
55-83
222-333
563
72
WRB0512YDK-3W
5
12
42-62
166-250
548
71
WRB0515YDK-3W
5
15
33-50
133-200
533
73
WRB1205YDK-3W
12
5
150
600
362
71
WRB1209YDK-3W
12
9
83
333
320
78
WRB1212YDK-3W
12
12
62
250
316
78
WRB1215YDK-3W
12
15
50
200
308
79
WRB2403YDK-3W
24
3.3
227
909
178
70
WRB2405YDK-3W
24
5
150
600
174
70
WRB2409YDK-3W
24
9
83
333
156
78
WRB2412YDK-3W
24
12
62
250
154
80
WRB2415YDK-3W
24
15
50
200
150
82
WRB4803YDK-3W
48
3.3
227
909
87
71
WRB4805YDK-3W
48
5
150
600
87
73
WRB4809YDK-3W
48
9
83
333
78
80
WRB4812YDK-3W
48
12
62
250
77
81
WRB4815YDK-3W
48
15
50
200
76
81
ge can’t exceed this value,or will cause the permanent damage.
INPUT CHARACTERISTICS
pF
kHrs
40
1939
52
1926
43
1907
44
1924
36
1928
52
1916
44
1897
47
1914
30
1671
36
1673
52
1663
44
1644
54
1657
30
1676
35
1668
52
1663
44
1648
53
1661
Parameter
Voltage range
Reflected ripple
current²
Conditions
All WRB05XX
All WRB12XX
All WRB24XX
All WRB48XX
WRB2403
WRB4803
All WRB05XX
All WRB12XX
All other WRB24XX
All other WRB48XX
Min.
Typ.
Max.
Units
4.5
5
9
VDC
9
12
18
VDC
18
24
36
VDC
36
48
72
VDC
180
360
mA p-p
140
290
mA p-p
400
500
mA p-p
150
170
mA p-p
290
360
mA p-p
100
127
mA p-p
ABSOLUTE MAXIMUM RATINGS
Short-circuit protection
Continuous
Lead temperature 1.5mm from case for 10 seconds
300°C
Minimum load
25% of rated load
Input voltage 05 types
10V
Input voltage 12 types
20V
Input voltage 24 types
40V
Input voltage 48 types
80V
Internal dissipation
1.7W
1.Refer to power derating graph.
2.Measured at full load with external input/output capacitors, refer to filter circuit 1.
3.Calculated using MIL-HDBK-217F with nominal input voltage at full load (ground benign) at 25°C.
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise
specified
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