DC/DC Converter
URA_YMD-10WR3 & URB_YMD-10WR3 Series
Input Specifications
Item
Operating Conditions
24VDC input
48VDC input
24VDC input
48VDC input
24VDC input
48VDC input
24VDC input
48VDC input
24VDC input
Min.
--
Typ.
Max.
--
Unit
mA
502/5
251/4
40
Input Current (full load / no-load)
--
--
--
--
Reflected Ripple Current
Input impulse Voltage (1sec. max.)
Starting Voltage
--
30
--
-0.7
-0.7
--
--
50
100
9
--
VDC
--
--
--
18
6.5
15.5
10
5.5
14
--
--
--
--
Input under-voltage Protection
VDC
ms
①
48VDC input
Starting Time
Input Filter
Nominal input& constant resistance load
Pi filter
Module switch on
Ctrl suspended or connected to TTL high level (3.5-12VDC)
Ctrl pin connected to GND or low level (0-1.2VDC)
②
Module switch off
Ctrl
Input current when switched off
--
6
10
mA
Note:
1
When the input voltage from 18V down to 0V, the under-voltage protection to work; When the input voltage rises from 0V to 7-8V range, the output voltage
decreases with increasing load, but does not affect customers
the voltage of Ctrl pin is relative to input pin GND.
2
Output Specifications
Item
Output Voltage Accuracy
Operating Conditions
Min.
--
Typ.
±1
Max.
±3
Unit
%
Balance of Output Voltage
Dual output, balanced load
Full load, the input voltage is from low voltage to
high voltage
--
±0.5
±1.5
Line Regulation
Load Regulation
Cross Regulation
--
--
--
±0.2
±0.5
--
±0.5
±1
5%-100% load
Dual output, main circuit with 50% load,
auxiliary circuit with 10%-100% load
±5
Transient Recovery Time
Transient Response Deviation
Temperature Drift Coefficient
Ripple & Noise*
--
--
300
±3
--
500
±5
μs
%
25% load step change
%/℃
mV p-p
%Vo
%Io
Full load
--
±0.03
80
20MHz bandwidth
--
40
--
Output Over-voltage Protection
110
110
160
190
Output Over-current Protection Input voltage range
Output Short circuit Protection
140
Continuous, self-recovery
Note: * Ripple and noise tested with “parallel cable” method, please see DC-DC Converter Application Notes for specific operation methods.
General Specifications
Item
Operating Conditions
Min.
Typ.
--
Max.
--
Unit
Input-output, with the test time of 1 minute and the leak
current lower than 1mA
Insulation Voltage
1500
VDC
Insulation Resistance
Isolation Capacitance
Operating Temperature
Storage Temperature
Storage Humidity
Input-output, insulation voltage 500VDC
Input-output, 100KHz/0.1V
see Fig. 1
1000
--
--
--
--
MΩ
1000
pF
-40
-55
5
--
--
85
125
95
℃
Non-condensing
--
%RH
Max. Operating
Temperature for casing
Lead Temperature
Vibration
Within the operating temperature curve
Welding spot is 1.5mm away from the casing, 10 seconds
--
--
--
--
105
300
℃
10-55Hz, 10G, 30 Min. along X, Y and Z
Switching Frequency
MTBF
PWM mode
--
350
--
--
--
KHz
MIL-HDBK-217F@25℃
1000
K hours
2014.06.23-A/0
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