B_S-1W & B_D-1W Series
1W, FIXED INPUT ISOLATED & UNREGULATED
SINGLE OUTPUT MINIATURE SIP/DIP PACKAGE
FEATURES
●
Efficiency up to 80%
●
Miniature SIP/DIP Package
●
1KVDC Isolation
●
Operating Temperature Range:
-40°C ~ +85°C
●
Low Temperature Rise
●
No External Component Required
●
PCB Mounting
●
Industry Standard Pinout
APPLICATIONS
The B_S-1W & B_D-1W Series are designed for
application where isolated output is required from a
distributed power system.
These products apply to where:
1)
2)
3)
Input voltage variation
≤ ±10%;
1KVDC input and output isolation;
RoHS
PART NUMBER SYSTEM
B0505S-1W
Rated Power
Package Style
Output Voltage
Input Voltage
Product Series
Regulated and low ripple noise is not required.
Such as: digital circuits, low frequency analog circuits,
and IGBT power device driving circuits.
SELECTION GUIDE
Model
Number
B0303S/D-1W
B0305S/D-1W
B0503S/D-1W
B0505S/D-1W
B0507S/D-1W
B0509S/D-1W
B0512S/D-1W
B0515S/D-1W
B0524S-1W
B1203S/D-1W
B1205S/D-1W
B1209S/D-1W
B1212S/D-1W
B1215S/D-1W
B1505S/D-1W
B1515S-1W
B2403S/D-1W
B2405S/D-1W
B2409S/D-1W
B2412S/D-1W
B2415S/D-1W
B2424S-1W
24
(21.6-26.4)
15
(13.5-16.5)
12
(10.8-13.2)
5
(4.5-5.5)
Input Voltage(VDC)
Nominal
(Range)
3.3
(2.97-3.63)
Output
Voltage
(VDC)
3.3
5
3.3
5
7.2
9
12
15
24
3.3
5
9
12
15
5
15
3.3
5
9
12
15
24
Output Current
(mA)
Max.
303
200
303
200
138
111
83
67
42
303
200
111
83
67
200
67
303
200
111
83
67
42
Min.
30
20
30
20
14
12
9
7
4
30
20
12
9
7
20
6
30
20
12
9
7
4
Input Current
(mA)(typ.)
@No
@Max.
Load
Load
417
392
271
270
252
252
248
247
240
110
116
105
104
101
92
85
57
57
52
50
50
50
8
61
14
18
16
23
220
31
20
50
Reflected
Ripple
Current
(mA,typ.)
15
Max.
Capacitive
Load(µF)
Efficiency
(%, typ.)
@Max.
Load
72
74
72
70
72
78
79
80
77
72
71
76
78
80
71
78
71
73
78
79
80
80
UL CE
UL CE
UL CE
UL CE
UL CE
UL CE
UL CE
UL CE
UL CE
UL CE
UL CE
UL CE
Approval
Note: The
B_S-W2 & B_D-W2
series also are available in our company.
The copyright and authority for the interpretation of the products are reserved by MORNSUN
B_S-1W&B_D-1W
B/2-2012
Page 1 of 5
INPUT SPECIFICATIONS
Item
Test Conditions
3.3VDC input
5VDC input
Input Surge Voltage
(1000 ms)
12VDC input
15VDC input
24VDC input
Input Filter
Min.
-0.7
-0.7
-0.7
-0.7
-0.7
Typ.
--
--
--
--
--
Max.
5
9
18
21
30
VDC
Unit
Capacitance Filter
OUTPUT SPECIFICATIONS
Item
Output Power
Output Voltage Accuracy
Line Regulation
For Vin change of
±1%
3.3VDC output
Others
3.3VDC output
5V/7.2VDC output
Load Regulation
10% to 100% load
9VDC output
12VDC output
15VDC output
24VDC output
Temperature Drift
Ripple & Noise*
Short Circuit Protection**
2.**Supply voltage must be discontinued at the end of short circuit duration.
Test Conditions
Min.
0.1
Typ.
--
Max.
1
±1.5
±1.2
20
15
15
15
15
15
±0.03
100
1
Unit
W
See tolerance envelope curve
--
--
--
--
--
--
--
--
--
--
--
--
--
15
12.8
8.3
6.8
6.3
5
--
75
--
%
100% load
20MHz Bandwidth
%/°C
mVp-p
s
Note: 1.*
Test ripple and noise by
“parallel
cable” method. See detailed operation instructions at Testing of Power Converter section, application notes.
COMMON SPECIFICATIONS
Item
Isolation Voltage
Isolation Resistance
Isolation Capacitance
Switching Frequency
MTBF
Case Material
Weight
B_S-1W Series
B_D-1W Series
--
--
Test Conditions
Tested for 1 minute and leakage current less than 1 mA
Test at 500VDC
Input/Output,100KHz/1V
Full load, nominal input
MIL-HDBK-217F@25℃
B2424S-1W
Others
Min.
1000
1000
--
--
--
3500
Typ.
--
--
100
30
100
--
Max.
--
--
--
--
--
--
KHz
K hours
Unit
VDC
MΩ
pF
Plastic(UL94-V0)
1.2
1.8
--
--
g
ENVIRONMENTAL SPECIFICATIONS
Item
Storage Humidity
Operating Temperature
Storage Temperature
Temp. rise at full load
Lead Temperature
Cooling
1.5mm from case for 10 seconds
Test Conditions
Non condensing
Power derating (above 85
℃
)
Min.
--
-40
-55
--
--
Typ.
--
--
--
25
--
Max.
95
85
125
--
300
°C
Unit
%
Free air convection
The copyright and authority for the interpretation of the products are reserved by MORNSUN
B_S-1W&B_D-1W
B/2-2012
Page 2 of 5
EMC SPECIFICATIONS
EMI
EMS
CE
ESD
CISPR22/EN55022
IEC/EN61000-4-2
CLASS A（External Circuit Refer to Figure1）
Contact
±8KV
perf. Criteria B
EMC RECOMMENDED CIRCUIT
EMI Recommended External Circuit:
Vi n
Vi n
+Vo
B_S-1W Series
Recommended external circuit parameters:
Vin：3.3V/5V/12V/15V/24V
C1：1µF/50V
LO AD
Note: Product bare input of 3V、5V、12V already
meet CLASS A, increase the capacitor margin
increase.
B_D-1W Series
Recommended external circuit parameters:
Vin 3.3V/5V：
C1：1µF/50V
Vin
：12V/15V/24V
C1：2.2µF/50V
Note: Product bare input of 3.3V already meet
CLASS A, increase the capacitor margin increase.
C1
GND
EUT
GND
0V
(Figure 1)
PRODUCT TYPICAL CURVE
Tolerance Envelope Curve
Output Power Percent(%)
+10%
+5%
Rated
Output
Voltage
Output Voltage
Accuracy
(%)
Temp erature D era ting C urve
120
100
80
60
Safe Oper ating Ar ea
40
20
0
-40
0
40
85 105 120
Ambient Temp.(
℃
)
Typi c
al
Lo ad
L
i ne
+2.5%
-2.5%
-7.5%
50
70
100
Output Current Percent(%)
(Nominal Input Voltage)
Efficiency VS Input Voltage curve
B0505S-1W
(Full Load)
B0505D-1W
100
90
80
100
90
80
Efficiency VS Output Load curve
B0505S-1W
(Vin=Vin-nominal)
B0505D-1W
Efficiency(%)
Efficiency(%)
4.6
4.7
4.8
4.9
5.0
5.1
5.2
5.3
5.4
5.5
70
60
50
40
30
20
10
0
70
60
50
40
30
20
10
0
10
20
30
40
50
60
70
80
90
100
Input Voltage(V)
Total Output Current (% )
Efficiency VS Input Voltage curve
B2405S-1W
(Full Load)
B2405D-1W
100
90
80
70
60
50
40
30
20
10
0
22.1
22.6
23.1
23.5
24.0
24.5
25.0
25.4
25.9
26.4
100
90
80
Efficiency VS Output Load curve
B2405S-1W
(Vin=Vin-nominal)
B2405D-1W
Efficiency(%)
Efficiency(%)
70
60
50
40
30
20
10
0
10
20
30
40
50
60
70
80
90
100
Input Voltage(V)
Total Output Current (% )
The copyright and authority for the interpretation of the products are reserved by MORNSUN
B_S-1W&B_D-1W
B/2-2012
Page 3 of 5
OUTLINE DIMENSIONS, RECOMMENDED FOOTPRINT & PACKAGING
MECHANICAL DIMENSIONS
B_S Series
0.50 [0.020]
8.20[0.323]
7.70[0.303]
10.00[0.394]
RECOMMENDED FOOTPRINT
B_S Series
B_D Series
1
2
3
4
(Front View)
(Front View)
∅
1.00 [0.039]
4.10 [0.161]
4.10 [0.161]
7.62 [0.300]
12.70[0.500]
7.62[0.300]
7.62[0.300]
10.00[0.394]
11.60[0.461]
0.50[0.020]
1
2
3
4
B_D Series
7
5
5.08 [0.200]
1
4
0.90[0.035]
6.00[0.236]
0.30[0.012]
1
4
Note
:
grid 2.54*2.54mm
.
(Bottom View)
7
5
0.30 [0.012]
(Bottom View)
TUBE OUTLINE DIMENSIONS
B_S Series
B_D Series
12.50[0.492]
∅
1.00 [0.039]
0.50[0.020]
9.60[0.378]
12.40[0.488]
10.50[0.413]
FOOTPRINT DETAILS
B
_
S
Pin
1
2
3
4
GND
Vin
0V
+Vo
FOOTPRINT DETAILS
Pin
1
4
5
7
B
_
D
GND
Vin
+Vo
0V
16.90[0.665]
3.50[0.138]
4.90[0.193]
Note:
Unit :mm[inch]
General tolerances:
±
0.50mm[± 0.020inch]
L=530mm[20.866inch] Devices per tube: 43pcs(B_S) 40pcs(B_D)
L=220mm[8.661inch] Devices per tube: 17pcs(B_S) 16pcs(B_D)
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.
Note:
Unit:mm[inch]
Pin section tolerances:± 0.10mm[± 0.004inch]
General tolerances:± 0.25mm[± 0.010inch]
TEST CONFIGURATIONS
Input Reflected-Ripple Current Test Setup
Input reflected-ripple current is measured with an inductor Lin and Capacitor Cin to simulate source impedance.
Oscilloscope
Lin
Cin
Current
Probe
DC DC
Load
Lin(4.7µH)
Cin(220µF, ESR < 1.0Ω at 100 KHz)
DESIGN CONSIDERATIONS
1) 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’s products with a lower rated output power (B_S-W2 & B_D-W2 Series).
2) Overload Protection
Under normal operating conditions, the output circuit of these products has no protection against overload. The simplest method is add a circuit
breaker to the circuit.
3) Recommended circuit
If you want to further decrease the input/output ripple, an capacitor filtering network may be connected to the input and output ends of the DC/DC
converter, see (Figure 2).
It should also be noted that the capacitance of 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).
The copyright and authority for the interpretation of the products are reserved by MORNSUN
B_S-1W&B_D-1W
B/2-2012
Page 4 of 5
16.50[0.650]
Vin
Cin
+Vo
DC DC
(Figure 2)
Cout
GND
0V
EXTERNAL CAPACITOR TABLE
(TABLE 1)
Vin
(VDC)
3.3/5
12
15
24
--
Cin
(μF)
4.7
2.2
1
1
--
Vout
(VDC)
3.3/5
7.2/9
12
15
24
Cout
(μF)
10
4.7
2.2
1
0.47
It’s not recommended to connect any external capacitor in the application field with less than 0.5 watt output.
4) Output Voltage Regulation and Over-voltage Protection Circuit
The simplest device for output voltage regulation, over-voltage and over-current protection is a linear regulator and an capacitor filtering network
with overheat protection that is connected to the input or output end in series (Figure 3), the recommended capacitance of its filter capacitor sees
(Table 1), linear regulator based on the actual voltage and current to reasonable selection.
Vin
GND
REG
REG
+Vo
DC DC
0V
(Figure 3)
5) Cannot use in parallel and hot swap
Note:
1. Operation under minimum load will not damage the converter; However, they may not meet all specification listed.
2. Max. Capacitive Load tested at input voltage range and full load.
3. All date in the datasheet are measured according to nominal input voltage, rated output load, TA=25℃, humidity<75%, unless otherwise specified.
4. In this datasheet, all the test methods of indications are based on our corporate standards.
5. The performance in the datasheet is just fit for the part number in the selection guide, and may be different from the customer-designed product,
you can get more details from MORNSUN FAE.
6. Contact us for your specific requirement.
7. Specifications subject to change without prior notice.
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:86-20-28203068
Http://www.mornsun-power.com
The copyright and authority for the interpretation of the products are reserved by MORNSUN
B_S-1W&B_D-1W
B/2-2012
Page 5 of 5
