D-XM-1W Datasheet, PDF (2/3 Pages) Microdc power Technology Co., Ltd – 1W,FIXED INPUT,1000V ISOLATED & UNREGULATEDTWINOUTPUTDC-DCCONVERTER

D-XM-1W Series
OUTPUT SPECIFICATIONS
TYPICAL CHARACTERISTICS
Item
Test Conditions
Min. Typ. Max.
Units
Output power
Line regulation
Load regulation
Load regulation
Output voltage accuracy
Temperature drift
Ripple & Noise*
Switching frequency
For Vin change of 1%
10% to 100% load (3.3V output)
10% to 100% load(5V output)
100% full load
20MHz Bandwidth
Full load, nominal input
0.1
1
W
±1.5
%
15
20
%
12.8
15
%
See tolerance envelope graph
±0.03
%/℃
75
100
mVp-p
130
KHz
*Test ripple and noise by "Parallel cable"method. See detailed operation instructions at Testing of Power
Converter section, application notes.
APPLICATION NOTE
RECOMMENDED CIRCUIT
Requirement on output load
To ensure this module can operate efficiently and reliably, During operation, the minimum output
load could not be less than 10% of the full load . If the actual output power is very small , please
connect a resistor with proper resistance at the output end in parallel to increase the
load , or use our company products with a lower rated output power.
Recommended circuit
If you want to further decrease the input/output ripple , an "LC" filtering network may
be connected to the input and output ends of the DC/DC converter, see (Figure 1).
It should also be noted that the inductance and the frequency of the "LC" filtering network should
be staggered with the DC/DC frequency to avoid mutual interference. 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 recommended
capacitance of its filter capacitor sees (Table 1).
Output Voltage Regulation and Over-voltage Protection Circuit
The simplest device for output voltage regulation, over-voltage and over-current protection is a linear
voltage regulator with overheat protection that is connected to the input or output end in series (Figure 2).
Overload Protection
Under normal operating conditions, the output circuit of these products has no protection against
overload . The simplest method is to connect a self-recovery fuse in series at the input end or add a
circuit breaker to the circuit.
No parallel connection or plug and play
It's not recommended to connect any external
capacitor in the application field with less than 0.5
watt output.
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