B_JS-2W
2W,FIXED INPUT, ISOLATED & UNREGULATED
SINGLE OUTPUT SIP PACKAGE DC-DC CONVERTER
RoHS
FEATURES
SIP Package
1000VDC Isolation
High Power Denisity
Temperature Range: -40°C to +85°C
No Heat sink Required
No External Component Required
Industry standard pinout
Internal SMD construction
RoHS compliance
PRODUCT PROGRAM
Input
Part
Number
B0505JS-2W
B1205JS-2W
B1212JS-2W
B1515JS-2W
15
13.5-16.5
Voltage (VDC)
Nominal
5
12
Range
4.5-5.5
10.8-13.2
Voltage
(VDC)
5
5
12
15
Output
Current (mA)
Max
400
400
167
133
Min
40
40
17
14
78
78
80
82
Efficiency
(%, Typ.)
APPLICATIONS
The B_JS-2W Series is specially designed
for applications where a single power supply is
isolated from the input power supply in a
distributed power supply system on a circuit
board.
These products apply to:
1) Where the voltage of the input power
supply is fixed (voltage variation
≤±10%);
2) Where isolation is necessary between
input and output (isolation voltage≤1000VDC);
3) Where the regulation of the output
voltage and the output ripple noise are not
demanding.
Such as: purely digital circuits, ordinary low
frequency analog circuits.
ISOLATION SPECIFICATIONS
Item
Isolation voltage
Isolation resistance
Isolation Capacitance
Test Conditions
Tested for 1 minute and 1mA max
Test at 500VDC
Min
1000
1000
50
Typ
Max
Units
VDC
MΩ
pF
OUTPUT SPECIFICATIONS
MODEL SELECTION
Item
Output power
Test Conditions
Min
0.2
For Vin change of 1%
10%to100% load (5V output)
10%to100% load (12V output)
Output voltage accuracy
Temperature drift
MORNSUN Science & Technology Co.,Ltd.
Address: No. 5, Kehui St. 1, Kehui development
center, Science Ave., Guangzhou Science City,
Luogang district, Guangzhou,P.R.China.
Tel: 86-20-38601850
Fax:86-20-38601272
Http://www.mornsun-power.com
Typ
Max
2
±1.2
Units
W
B0505JS-2W
R ated Pow er
Package Style
Output Voltage
Input Voltage
Product Series
Line regulation
Load regulation
12.8
6.8
15
10
%
See tolerance envelope graph
100% full load
20MHz Bandwidth
Full load, nominal input
75
500
0.03
150
%/°C
mVp-p
KHz
Ripple &Noise*
Switching frequency
*
Test ripple and noise by
“parallel
cable” method. See detailed operation instructions at Testing of
Power Converter section, application notes.
Note:
1. All specifications measured at TA=25°C, humidity<75%, nominal input voltage and rated output load
unless otherwise specified.
2. See below recommended circuits for more details.
3. Operation under minimum load will not damage the converter; However, they may not meet all
specification listed, and that will reduce the life of product.
MORNSUN reserves the copyright
Specifications subject to change without notice.
B_JS-2W
A/2-2012
Page 1 of 2
COMMON SPECIFICATION
Item
Storage humidity
Operation temperature
Storage temperature
Temp. rise at full load
Lead temperature
Short circuit protection*
Cooling
Case material
MTBF
Weight
*Supply voltage must be discontinued at the end of short circuit duration.
Test condition
Min
Typ
Max
95
Units
%
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).
L
L
-40
-55
15
1.5mm from case for 10 seconds
85
125
25
300
1
Free air convection
Plastic (UL94-V0)
s
°C
3500
2.9
K hours
g
Vin
Cin
+Vo
DC DC
Cout
GND
TYPICAL CHARECTERISTICS
(Figure 1)
0V
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
Ambient Temperature
( C )
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).
OUTLINE DIMENSIONS & PIN CONNECTIONS
MECHANICAL DIMENSIONS
RECOMMENDED FOOTPRINT
∅1.00
[0.039]
(Front View)
10.00 [0.394]
1 2
4
6
EXTERNAL CAPACITOR TABLE(TABLE 1)
Vin
Cin
Single Vout
Cout
(VDC)
(uF)
(VDC)
(uF)
5
4.7
5
10
12
2.2
2.2
12
15
2.2
1
15
4.10 [0.161]
0.50 [0.020]
0.50 [0.020]
N ote: grid 2.54*2.54mm .
19.60 [0.772]
TUBE OUTLINE DIMENSIONS
0.30 7.00 [0.276]
[0.012]
9.60
[0.378]
12.40 [0.488]
It’s not recommend to connect any external capacitor
in the application field with less than 0.5 watt output.
(Bottom View)
0.90 [0.035]
1
2
4
10.16
[0.400]
6
16.9 0 [0.665]
2.54 [0.100]
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).
FOOTPRINT DETAILS
Pin
1
2
4
5
6
F unction
Vin
GND
0V
No Pin
+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.
Vin
GND
REG
+Vout
DC DC
0V
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).
Vin
GND
REG
+Vout
DC DC
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
Page 2 of 2
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