URA_YMD-6WR3 & URB_YMD-6WR3 series are isolated 6W DC-DC products with 4:1 input voltage. They feature efficiency up to 88%,
1500VDC isolation, operating temperature of -40℃~+85℃, input under-voltage protection, output over-voltage, over-current, short circuit
protection and EMI meets CISPR22/EN55022 CLASS A, which make them widely applied in medical care, industrial control, electric power,
instruments and communication fields. And extension package A2S and A4S also enable them with reverse voltage protection.
Selection Guide
Certification
Part No.
①
Input Voltage (VDC)
Nominal
(Range)
Max.
②
Output
Output Voltage
(VDC)
±5
±12
±15
±24
Output Current (mA)
(Max./Min.)
±600/0
±250/0
±200/0
±125/0
1500/0
1200/0
667/0
500/0
400/0
250/0
±600/0
±250/0
±200/0
1500/0
1200/0
500/0
400/0
250/0
③
Efficiency
(%,Min./Typ.)
@ Full Load
81/83
85/87
86/88
86/88
77/79
81/83
83/85
85/87
86/88
86/88
81/83
85/87
86/88
77/79
81/83
85/87
86/88
86/88
Max. Capacitive
④
Load (µF)
470
100
100
100
1800
1000
680
470
220
100
470
100
100
1800
1000
470
220
100
URA2405YMD-6WR3
URA2412YMD-6WR3
URA2415YMD-6WR3
URA2424YMD-6WR3
URB2403YMD-6WR3
URB2405YMD-6WR3
URB2409YMD-6WR3
URB2412YMD-6WR3
UL/CE/CB
URB2415YMD-6WR3
URB2424YMD-6WR3
URA4805YMD-6WR3
URA4812YMD-6WR3
URA4815YMD-6WR3
URB4803YMD-6WR3
URB4805YMD-6WR3
URB4812YMD-6WR3
URB4815YMD-6WR3
URB4824YMD-6WR3
48
(18-75)
80
24
(9-36)
40
3.3
5
9
12
15
24
±5
±12
±15
3.3
5
12
15
24
Notes：
1
Part No. with suffix of “A2S” means chassis mounting and suffix of “A4S” means DIN-Rail mounting (e.g. URB2405YMD-6WR3A2S means chassis mounting;
URB2405YMD-6WR3A4S means DIN-Rail mounting);
2
Absolute maximum rating without damage on the converter, but it isn't recommended;
3
Efficiency is measured In nominal input voltage and rated output load;A2S (wiring) and A4S (rail) Model due to input reverse polarity protection, minimum
efficiency greater than Min.-2 is qualified.
4
The capacitive loads of positive and negative outputs are identical.
Input Specifications
Item
Input Current (full load / no-load)
Reflected Ripple Current
Operating Conditions
24VDC input
48VDC input
Min.
--
--
--
Typ.
301/5
150/4
20
Max.
309/12
154/8
--
Unit
mA
mA
2015.09.28-A/3
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DC/DC Power Supply Module
URA_YMD-6WR3 & URB_YMD-6WR3 Series
Input impulse Voltage (1sec. max.)
Starting Voltage
Under-voltage turn-off
Input Filter
Hot Plug
24VDC input
48VDC input
24VDC input
48VDC input
24VDC input
48VDC input
-0.7
-0.7
--
--
5.5
14
--
--
--
--
6.5
15.5
Pi filter
Unavailable
50
100
9
18
--
--
VDC
Output Specifications
Item
Output Voltage Accuracy
①
Operating Conditions
0%-100% load
Dual output, balanced load
Full load, the input voltage is from Positive output
low voltage to high voltage
Negative output
5%-100% load
Positive output
Negative output
Min.
--
--
--
--
--
--
--
--
Typ.
±1
±0.5
±0.2
±0.5
±0.5
±0.5
--
300
±5
±3
--
60
--
140
Max.
±3
±1.5
±0.5
±1
±1
±1.5
±5
500
±8
±5
±0.03
85
160
190
Unit
Balance of Output Voltage
Line Voltage Regulation
Load Regulation
②
%
Cross Regulation
Transient Recovery Time
Transient Response Deviation
Temperature Drift Coefficient
Ripple & Noise
③
Dual output, main circuit with 50% load,
auxiliary circuit with 10%-100% load
25% load step change
Full load
20MHz bandwidth, 5%-100% load
Input voltage range
3.3V, 5V, ±5V output
Others
µs
%
%/
℃
mV p-p
%Vo
%Io
--
--
--
--
110
110
Over-voltage Protection
Over-current Protection
Short circuit Protection
Continuous, self-recovery
Note:
①At
0%~5% load, the Max. output voltage accuracy of
±5VDC/±9VDC
output converter is
±5%.
②When
testing from 0% to100%load working conditions，load regulation index of
±5%；
③0%-5%
load ripple&Noise is no more than 5%Vo.Ripple and noise are measured by “parallel cable” method, please see DC-DC Converter Application
Notes for specific operation.
General Specification
Item
Insulation Voltage
Insulation Resistance
Isolation Capacitance
Operating Temperature
Storage Humidity
Storage Temperature
Lead Temperature
Vibration
Switching Frequency *
MTBF
PWM mode
MIL-HDBK-217F@25℃
--
1000
Welding spot is 1.5mm away from the casing, 10 seconds
Operating Conditions
Input-output, with the test time of 1 minute and the leak
current lower than 1mA
Input-output, insulation voltage 500VDC
Input-output, 100KHz/0.1V
Derating if the temperature is
≥71
℃
(see Fig. 1)
Without condensation
Min.
1500
1000
--
-40
5
-55
--
Typ.
--
--
1000
--
--
--
--
300
--
Max.
--
--
--
+85
95
+125
+300
--
--
Unit
VDC
MΩ
pF
℃
%
℃
10-55Hz, 10G, 30 Min. along X, Y and Z
KHz
K hours
Note:* This series of products using reduced frequency technology, the switching frequency is test value of full load,When the load is reduced to below 50%, the
switching frequency decreases with decreasing load.
2015.09.28-A/3
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MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation
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