WRB-YMD-15W Datasheet, PDF (1/4 Pages) Microdc power Technology Co., Ltd – Isolated 15WSingle Output DC/DC Converter

WRB-YMD-15W Series
Isolated 15W Single Output DC/DC Converter
FEATURES
◆RoHS compliant
◆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
◆Continuous rating to 15W at 40℃ without
Heatsink
◆Operation to zero load
◆Protected against load faults
◆Internal over temperature protection
◆Uses no electrolytic capacitors
MODEL SELECTION
WRB^①24^②03^③Y^④ MD^⑤-15W^⑥
①Product Series
③Output Voltage
⑤Metal Shield
⑦Rated Power
②Input Voltage
④Wide (2:1) Input Range
⑥DIP Package Style
DESCRIPTION
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.
SELECTION GUIDE
order code
WRB2403YMD-15W
WRB2405YMD-15W
WRB2412YMD-15W
WRB2415YMD-15W
WRB4803YMD-15W
WRB4805YMD-15W
WRB4812YMD-15W
WRB4815YMD-15W
Input
Voltage range
18-36VDC
18-36VDC
18-36VDC
18-36VDC
36-72VDC
36-72VDC
36-72VDC
36-72VDC
Nominal
Input
Voltage
V
24
24
24
24
48
48
48
48
Output
Voltag
Ve
3.3
5
12
15
3.3
5
12
15
Output
Current
A
4.4
3
1.25
1
4.4
3
1.25
1
Current Limit
A(MIN.)
7.5
5
2.5
2
7.5
5
2.5
2
A(MAX.)
11
7.5
3.7
3
11
7.5
3.7
3
Efficiency
%
81
84
86
87
83
85
88
89
MTTF²
kHrs
335
286
286
281
295
301
302
296
INPUT CHARACTERISTICS
Parameter
Voltage range
Conditions
Continuous operation, 24V input types
Continuous operation, 48V input types
Min.
18
36
Typ.
24
48
Max.
36
72
Units
V
OUTPUT CHARACTERISTICS
Parameter
Voltage set point error
Overall voltage error
Conditions
50% load
Case temperature -40oC to 110oC
Load 0% - 100%
Input specified range
Temperature coefficient
of output voltage (slope
Deviation of output
voltage
Line regulation
Load Regulation
Ripple
Temperature MIN-MAX
Operating voltage range, 50% load
0% - 100% rated load
rms
Min.
Typ.
Max.
0.5
Units
%
2.5
ppmoC
250
0.5
1
%
0.1
%
70
0.5
mV
ISOLATION CHARACTERISTICS
Parameter
Isolation test
Resistance
Conditions
Flash tested for 1 second
VISO = 500VDC
Min. Typ.
1500
1
Max.
Units
VDC
GΩ
ABSOLUTE MAXIMUM RATINGS
Input voltage, 24V input types
-0.5V to 40V
Input voltage, 48V input types
-0.5V to 80V
Output voltage
-0.3V to regulated voltage
Output trim control
-1V to +30V
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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