MD-XD-6W
Series
ISOLATION SPECIFICATIONS
Item
Isolation voltage
Isolation resistance
Isolation capacitance
Test Conditions
Tested for 1 minute and 1mA max
Test at 500VDC
Input/Output, 100KHz/1V
Min.
1500
1000
100
Typ.
Max.
Units
VDC
MΩ
pF
TYPICAL CHARACTERISTICS
*Supply voltage must be discontinued at the end of short circuit duration.
OUTPUT SPECIFICATIONS
Item
Output power
Main output voltage accuracy
Vice-output voltage accuracy
Load regulation
Line regulation
Temperature drift (Vout)
Ripple**
Noise**
Switching frequency
Test Conditions
Refer to product program
Refer to recommended circuit
Refer to recommended circuit
From 10% to 100% load
Input voltage from low to high
Refer to recommended circuit
20MHz Bandwidth
20MHz Bandwidth
100% load, input voltage range
20
75
300
Min.
0.6
±1
±3
±0.5
±0.2
Typ.
Max.
6
±3
±5
±1*
±0.5
±0.03
50
150
%/℃
mVp-p
KHz
%
Units
W
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.
APPLICATION NOTE
1) 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.If the actual 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
appropriate resistor as extra loading, or contact our company for other lower output power products.
2) Recommended Circuit
All the MD-XD-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 should not be too high, or may cause start-up problem. If you want to use the
products
an
in high EMI, please choose our metal packaged products. 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
24V&48V
Cout: 10µF/100mA
100µF
22µF/10µF
EXTERNAL CAPACITOR TABLE (TABLE 1)
3) Input Current
While using unstable power source, please ensure the output voltage and ripple voltage do not exceed indexes of the
converter. The preceding power source must be able to provide for converter sufficient starting current Ip (Figure 2).
General: Ip≤1.4*Iin-max
4) No parallel connection or plug and play
Output External Capacitor Table (Table 1)
Vout(VDC)
Cout(uF)
5
9
12
15
24
680
470
330
220
100
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
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MICRODC [ MICRODC POWER TECHNOLOGY CO., LTD ]
