WRB-YMD-15W Series
Isolated 15W Single Output DC/DC Converter
SELECTION GUIDE
Nominal
Input
Voltage
Output
Voltag
Output
Current Limit
A(MIN.) A(MAX.)
Efficiency
%
MTTF2
kHrs
Input
Current
order code
Voltage
e
V
V
A
WRB2403YMD-15W
WRB2405YMD-15W
WRB2412YMD-15W
WRB2415YMD-15W
WRB4803YMD-15W
WRB4805YMD-15W
WRB4812YMD-15W
WRB4815YMD-15W
2403-Y2X11K515W
2405-Y2X11K515W
2412-Y2X11K515W
2412-Y2X11K516W
4803-Y2X11K515W
4805-Y2X11K515W
4812-Y2X11K515W
4815-Y2X11K516W
24
24
24
24
48
48
48
48
3.3
5
4.4
3
7.5
5
11
7.5
3.7
3
81
84
86
87
83
85
88
89
335
286
286
281
295
301
302
296
FEATURES
◆RoHS compliant
12
15
3.3
5
1.3
1
2.5
2
4.4
3
7.5
5
11
◆High efficiency to 89%
◆Power density up to 2.4W/cm3
◆UL 94V-0 package material
◆Industry standard pinout
◆Non latching current limit
◆Constant 350kHz frequency
◆1.5kV input to output isolation
◆Versatile control options
7.5
3.7
3
12
15
1.3
1
2.5
2
INPUT CHARACTERISTICS
Parameter
Conditions
Min.
18
Typ.
24
Max.
36
Units
Voltage range
Continuous operation, 24V input types
Continuous operation, 48V input types
V
36
48
72
◆Continuous rating to 30W at 40℃ without
OUTPUT CHARACTERISTICS
Heatsink
Parameter
Conditions
Min.
Typ.
Max.
Units
Voltage set point error
50% load
0.5
◆Operation to zero load
Case temperature -40oC to 110oC
Load 0% - 100%
%
◆Protected against load faults
◆Internal over temperature protection
◆Uses no electrolytic capacitors
Overall voltage error
2.5
Input specified range
Temperature coefficient
of output voltage (slope
ppmoC
250
Deviation of output
voltage
MODEL SELECTION
WRB 24 03 Y MD -15W
①
②
③
④
⑤
⑥
Temperature MIN-MAX
Operating voltage range, 50% load
0% - 100% rated load
rms
Line regulation
Load Regulation
Ripple
0.5
70
1
%
%
①Product Series
③Output Voltage
⑤Metal Shield
⑦Rated Power
②Input Voltage
④Wide (2:1) Input Range
⑥DIP Package Style
0.1
0.5
mV
DESCRIPTION
ISOLATION CHARACTERISTICS
The WRB-YMD-15W series of DC/DC converters
combines ease of application with versatility. The pin
pattern is based on the popular industry standard, but two
additional pins may optionally be fitted to provide a variety
of features not commonly found on units of this type. High
efficiency enables full rating to be achieved in a small
package without heats inking, and a high surge capability
will provide for start-up and transient loads, whilst being
thermally protected against sustained overload. Overload
protection of the “constant current” type ensures start-up
into complex load conditions. The copper case achieves
efficient heat transfer and screening. The product range
has been recognized by Underwriters Laboratory (UL) to
UL 1950 for operational insulation, file number E179522
applies.
Parameter
Isolation test
Resistance
Conditions
Flash tested for 1 second
VISO = 500VDC
Min.
1500
1
Typ.
Max.
Units
VDC
GΩ
ABSOLUTE MAXIMUM RATINGS
Input voltage, 24V input types
Input voltage, 48V input types
Output voltage
-0.5V to 40V
-0.5V to 80V
-0.3V to regulated voltage
-1V to +30V
Output trim control
Synchronisation/shutdown control
±15V relative to input return
1. Calculated using MIL-HDBK-217F with nominal input voltage at full load.
2. Absolute maximum value for 30 seconds. Prolonged operation may damage the product.
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.
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