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MORNSUN
MORNSUN


B1209LS-1W

DUAL/SINGLE OUTPUT DC-DC CONVERTER


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B1209LS-1W pdf
A_S-1W & B_LS-1W Series
1W, FIXED INPUT, ISOLATED & UNREGULATED
DUAL/SINGLE OUTPUT DC-DC CONVERTER
FEATURES
Efficiency up to 84%
Small Size
Low Temperature Rise
1KVDC Isolation
Operating Temperature Range:
-40°C ~ +85°C
No External Component Required
Industry Standard Pinout
RoHS
PART NUMBER SYSTEM
A0505S-1W
SELECTION GUIDE
Input
Model Number
Voltage(VDC)
Nominal
(Range)
B0303LS-1W
B0305LS-1W
3.3
(3.0-3.6)
A0505S-1W
A0509S-1W
A0512S-1W
A0515S-1W
A0524S-1W
B0503LS-1W
B0505LS-1W
B0506LS-1W
5
(4.5-5.5)
B0507LS-1W
B0509LS-1W
B0512LS-1W
B0515LS-1W
B0524LS-1W
A1205S-1W
A1209S-1W
A1212S-1W
A1215S-1W
B1203LS-1W
B1205LS-1W
12
(10.8-13.2)
B1209LS-1W
B1212LS-1W
B1215LS-1W
Output
Voltage
(VDC)
3.3
5
±5
±9
±12
±15
±24
3.3
5
6
7.2
9
12
15
24
±5
±9
±12
±15
3.3
5
9
12
15
Output Current
(mA)
Max.
Min.
303 31
200 20
±100
±10
±56 ±6
±42 ±5
±33 ±4
±21 ±3
303 31
200 20
167 16
139 14
111 12
83 9
67 7
42 5
±100
±10
±56 ±6
±42 ±5
±33 ±4
303 31
200 20
111 12
83 9
67 7
APPLICATIONS
The A_S-1W & B_LS-1W Series are designed for application
where isolated output is required from a distributed power
system.
These products apply to where:
1) Input voltage variation ±10%;
2) 1KVDC input and output isolation;
3) Regulated and low ripple noise is not required.
Such as: digital circuits, low frequency analog circuits, and
IGBT power device driving circuits.
Input Current
(mA)(typ.)
@Max. @No
Load Load
417
42
392
273
268
253 33
229
241
271
273
267
264
35
252
250
248
237
114
109
17
105
105
112
116
107 14
101
101
Reflected
Ripple
Current
(mA,typ.)
14
20
21
15
22
Max.
Capacitive
Load# (µF)
Efficiency
(%, typ.)
@Max. Load
72
220
74
72
77
100 79
80
82
72
70
70
72
220
78
78
80
81
72
78
100
79
78
74
71
220 76
78
79
Approval
UL
UL
UL
UL
UL CE
UL CE
UL CE
UL CE
UL
UL
UL
UL
UL CE
UL CE
UL CE
UL CE
The copyright and authority for the interpretation of the products are reserved by MORNSUN
A_S-1W&B_LS-1W B/2-2014 Page 1 of 5



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B1209LS-1W pdf
Model Number
B1224LS-1W
Input
Voltage(VDC)
Nominal
(Range)
12(10.8-13.2)
Output
Voltage
(VDC)
24
Output Current
(mA)
Max.
Min.
42 5
A1505S-1W
±5
±100
±10
A1512S-1W
±12 ±42
±5
A1515S-1W
15 ±15 ±33
B1505LS-1W
(13.5-16.5)
5
200
±4
20
B1512LS-1W
12 83
9
B1515LS-1W
15 67
7
A2405S-1W
±5
±100
±10
A2409S-1W
±9 ±56 ±6
A2412S-1W
±12 ±42
±5
A2415S-1W
±15 ±33
±4
A2424S-1W
24 ±24 ±21
B2405LS-1W
(21.6-26.4)
5
200
±3
20
B2409LS-1W
9 111 12
B2412LS-1W
12 83
9
B2415LS-1W
15 67
7
B2424LS-1W
24 42
4
Note: 1. # For each output.
2.The A_S-W25/B_LS-W25 series also are available in our company.
Input Current
(mA)(typ.)
@Max. @No
Load Load
97 14
95
84 15
88
94
85 14
84
56
53
52 8
51
51
56
52
51 7
50
50
Reflected
Ripple
Current
(mA,typ.)
22
22
24
43
53
Max.
Capacitive
Load# (µF)
Efficiency
(%, typ.)
@Max. Load
220 84
72
100 76
79
72
220 76
75
73
79
100 80
80
81
73
78
220 78
79
78
Approval
UL
UL
UL
UL
UL CE
UL CE
UL CE
UL CE
INPUT SPECIFICATIONS
Item Test Conditions
3.3VDC input
Input Surge Voltage
(1 sec. max.)
5VDC input
12VDC input
15VDC input
24VDC input
Input Filter
Min. Typ. Max. Unit
-0.7 --
5
-0.7 --
9
-0.7 --
18 VDC
-0.7 --
21
-0.7 --
30
Capacitance Filter
OUTPUT SPECIFICATIONS
Item Test Conditions
Min. Typ. Max.
Output Power
0.1 --
1
Output Voltage Accuracy
See tolerance envelope curve
Output Voltage Balance
Dual Output, Balanced Loads
-- ±0.5 ±1
Line Regulation
For Vin change of ±1%
-- -- ±1.2
3.3VDC output
-- 12 20
5V/6V/7.2VDC output -- 10.5 15
Load Regulation
10% to 100% load
9VDC output
12VDC output
-- 8.3 15
-- 6.8 15
15VDC output
-- 6.3 15
24VDC output
-- 5 15
Temperature Drift
100% full load
-- -- ±0.03
AXXXXS-1W
-- 50 75
Ripple & Noise*
20MHz Bandwidth
AXX24S-1W
BXXXXLS-1W
-- 100 150
-- 75 100
BXX24LS-1W
-- 100 150
Short Circuit Protection**
-- --
1
Note: 1.Dual output models unbalanced load: ±5%.
2.*Test ripple and noise by “parallel cable” method. See detailed operation instructions at Testing of Power Converter section, application notes.
3.**Supply voltage must be discontinued at the end of short circuit duration.
Unit
W
%
%/°C
mVp-p
s
The copyright and authority for the interpretation of the products are reserved by MORNSUN
A_S-1W&B_LS-1W B/2-2014 Page 2 of 5



Part Number B1209LS-1W
Description DUAL/SINGLE OUTPUT DC-DC CONVERTER
Maker MORNSUN - MORNSUN
Total Page 5 Pages
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