B2405LS-1WR MORNSUN Science& Technology Ltd., B2405LS-1WR Datasheet - Page 2

• Manufacturer Part Number: B2405LS-1WR
• Description: A_s-1wr & B_ls-1wr Series 1w, Fixed Input, Isolated & Unregulated Dual/single Output Dc-dc Converter
• Manufacturer: MORNSUN Science& Technology Ltd.

The copyright and authority for the interpretation of the products are reserved by Mornsun
*Test ripple and noise by “parallel cable” method. See detailed operation instructions at Testing
of Power Converter section, application notes.
②
①
minimum output load is not less than 10% of the full load. If the actual output power is
very small, please connect a resistor with resistance of 10% rated power at the output
end in parallel, or use our company’s products with a lower rated output power
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).
protection against overload. The simplest method is to connect a slow-blow fuse in series
at the input end or add a circuit breaker to the circuit.
③
filtering network may be connected to the input and output ends of the DC/DC converter,
see (Figure 1).
④
protection is a linear voltage regulator with overheat protection that is connected to the
input or output end in series (Figure 2).
Item
Output power
Line regulation
Load regulation
Output voltage accuracy
Temperature drift
Ripple & Noise*
Switching frequency
Item
Isolation resistance
Isolation voltage
Isolation Capacitance
⑤
OUTPUT SPECIFICATIONS
ISOLATION SPECIFICATIONS
TYPICAL CHARACTERISTICS
APPLICATION NOTE
Under normal operating conditions, the output circuit of these products has no
If you want to further decrease the input ripple or the input inrush current, an “LC”
The simplest device for output voltage regulation, over-voltage and over-current
Overload Protection
Requirement on output load
Recommended testing and application circuit
Output Voltage Regulation and Over-voltage Protection Circuit
No parallel connection or plug and play
To ensure this module can operate efficiently and reliably, During operation, the
It should also be noted that the inductance and the frequency of the “LC” filtering
10% to 100% load
100% full load
For Vin change of ±1%
20MHz Bandwidth
Tested for 1 minute and 1
Test conditions
Full load, nominal input
Test conditions
mA max
Test at 500VDC
Follow the tolerance envelope graph
Min.
1000
1000
Min
0.1
Operating Temp.( C)
±1.1
Typ.
Typ
100
100
6
±1.5
±0.03
Max.
Max
200
20
15
1
o
mVp-p
Units
%/°C
Units
VDC
kHz
MΩ
PF
W
%
A_S-1WR & B_LS-1WR
1
2. For applications where output power is less than 0.5W in
RECOMMENDED CIRCUIT
.The recommended external capacitance please use the
D ua l Outp ut
Sing le Ou tpu t
reality, external capacitors are not recommended.
(VDC)
GND
GND
Specifications subject to change without notice.
ceramic capacitor;
Vin
Vin
D ual Out p ut
GND
Single Out p u t
GND
Vin
Vin
Vin
12
15
24
5
Recommended capacitance(Table 1)
Cin
Cin
(uF)
Cin
4.7
2.2
2.2
1
REG
REG
L
L
output
(VDC)
Single
12
15
DC DC
DC DC
5
9
(
DC
DC
(
Figure 2)
A/1-2010
Figure 1)
Cout
(uF)
4.7
2.2
10
1
DC
DC
output
(VDC)
Dual
±12
±15
±5
±9
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REG
REG
REG
L
L Cout
L
Cout
Cout
Cout
0.47
(uF)
4.7
2.2
1
+Vo
-Vo
+Vo
0V
0V
+Vo
+Vo
-Vo
0V
0V