WRA-YD-6W
＆
WRB-YD -6W
Series
TEMPERATURE CHARACTERISTICS
Parameter
Output power
Positive voltage accuracy
Negative voltage accuracy
Load regulation
Ripple **
Temperature drift (Vout)
Line regulation
Noise**
Switching frequency
TYPICAL CHARACTERISTICS
Typ.
Max.
6
±1
±3
±0.5
20
±0.02
±0.2
50
300
±0.5
100
±3
±5
±1*
50
Conditions
See below products program
Refer to recommended circuit
Refer to recommended circuit
From 10% to 100% load
20MHz Bandwidth
Refer to recommended circuit
Input voltage from low to high
20MHz Bandwidth
100% load, input voltage range
Min.
0.6
Units
W
%
%
%
mVp-p
%/℃
%
mVp-p
KHz
Temperature Derating Graph
RECOMMENDED CIRCUIT
* Dual output models unbalanced load: ±5%.
** Test ripple and noise by “parallel cable” method. See detailed operation instructions at Testing of Power Converter section,
application notes.
Output Graph
APPLICATION NOTE
Requirement on output load
In order to ensure the product operate efficiently and reliably,in addition to a
max load(namely full load), a minimum load is specified for this kind of
DC/DC converter.Make sure the specified range of input voltage is not
exceeded,the minimum output load
no less than 10% load
the actual
load.If
load is less than the specified minimum load, the output ripple may increase
sharply while its efficiency and reliability will reduce greatly.If the actual
output power is very small,please add an appropriate resistor as extra
loading,or contact our company for other lower output power products.
Recommended Circuit
All the WRA_YD-6W&WRB_YD-6W Series have been tested according to
the following recommended testing circuit before leaving factory.This series
should be tested under load(See figure 1).
If you want to further decrease the input/output ripple,you can increase
capacitance properly or choose capacitors with low ESR. However, the
capacitance of the output filter capacitor must be proper. If the capacitance
is too big, a startup problem might arise. For every channel of output,
provided the safe and reliable operation is ensured, the greatest capacitance
of its filter capacitor sees (Table 1).
General:
Cin: 5V＆12V 100μF
24V＆48V 100μF-47μF
Cout: 10μF/100mA
Output External Capacitor Table(Table 1)
Single Vout
Input current
While using unstable power source,please ensure the output voltage and
ripple voltage do not exceed indexes of the converter. Input current of
power supply should afford the startup current of this kind of DC/DC module
(See figure 2).
General:Ip≤1.4*Iin-max
No parallel connection or plug and play
Cout
(μF)
2200
1000
470
330
Dual Vout
(VDC)
±5
±12
±15
--
Cout
(μF)
680
330
220
--
(VDC)
3.3
5
12
15
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
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MICRODC [ MICRODC POWER TECHNOLOGY CO., LTD ]
