B0505JS-2W Datasheet, PDF (2/2 Pages) MORNSUN Science& Technology Ltd. – SINGLE OUTPUT SIP PACKAGE DC-DC CONVERTER

COMMON SPECIFICATION
Item
Test condition
Min Typ Max Units
Storage humidity
95 %
Operation temperature
-40
85
Storage temperature
Temp. rise at full load
-55
125 _°C
15 25
Lead temperature
1.5mm from case for 10 seconds
300
Short circuit protection*
1
s
Cooling
Free air convection
Case material
Plastic (UL94-V0)
MTBF
3500
K hours
Weight
2.9
g
*Supply voltage must be discontinued at the end of short circuit duration.
TYPICAL CHARECTERISTICS
Overload Protection
Under normal operating conditions, the output
circuit of these products has no protection
against over-current and short-circuits. The
simplest method is to connect a self-recovery
fuse in series at the input end or add a circuit
breaker to the circuit.
Recommended and testing 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).
Vin
Cin
GND
L
DC DC
L
+Vo
Cout
0V
(Figure 1)
Ambient Temperature ( C )
OUTLINE DIMENSIONS & PIN CONNECTIONS
MECHANICAL DIMENSIONS
RECOMMENDED FOOTPRINT
(Front View)
10.00 [0.394]
12
4
6
∅1.00 [0.039]
0.50 [0.020]
0.50 [0.020]
4.10 [0.161]
N ote: grid 2.54*2.54mm .
0.90 [0.035]
19.60 [0.772]
(Bottom View)
12
4
6
2.54 [0.100]
10. 16
[ 0. 400]
0.30 7.00 [0.276]
[ 0.012]
TUBE OUTLINE DIMENSIONS
9. 60
[ 0.378]
FOOTPRINT DETAILS
Pi n
F unction
1
Vin
2
GND
4
0V
5
No Pin
6
+Vo
N ote:
U nit:mm[inch]
Pin section tolerances:± 0.10mm[± 0.004inch]
General tolerances:± 0.25mm [± 0.010inch]
4.90 [0.193]
Note:
Unit :mm[inch]
General tolerances: ±0.50mm[±0.020inch]
L=530mm[20.866inch] Tube Quantity: 25pcs
L=220mm[8.661inch] Tube Quantity: 10pcs
Short tube inner packaging dimensions: L*W*H=255*170*80mm;
Short tube outer packaging dimensions(with six inner packaging boxes):
L*W*H=375*280*270mm;
Long tube inner packaging dimensions: L*W*H=580*200*100mm;
Long tube outer packaging dimensions(with two inner packaging boxes) ：
L*W*H=600*215*220mm;
Long tube outer packaging dimensions(with three inner packaging boxes) ：
L*W*H=600*215*325mm.
APPLICATION NOTE
Requirement On Output Load
To ensure this module can operate efficiently and reliably, a minimum load is specified
for this kind of DC/DC converter in addition to a maximum load (namely full load). During
operation, make sure the specified range of input voltage is not exceeded, 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’s products with a lower rated output power
(B_JS –1W Series).
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).
EXTERNAL CAPACITOR TABLE(TABLE 1)
Vin
Cin Single Vout Cout
(VDC)
(uF)
(VDC)
(uF)
5
4.7
5
10
12
2.2
12
2.2
15
2.2
15
1
It’s not recommend to connect any external capacitor
in the application field with less than 0.5 watt output.
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 (see Figure 2).
Vin
GND
REG
DC DC
+Vout
0V
Vin
GND
REG
DC DC
+Vout
0V
(Figure 2)
No parallel connection or plug and play.
MORNSUN reserves the copyright
Specifications subject to change without notice.
B_JS-2W
A/2-2012
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