A2405S-W25 [MORNSUN]
DUAL/SINGLE OUTPUT DC-DC CONVERTER; 双/单路输出DC -DC转换器
| 型号： | A2405S-W25 |
| 厂家： | 
MORNSUN SCIENCE& TECHNOLOGY LTD. |
| 描述： | DUAL/SINGLE OUTPUT DC-DC CONVERTER |
| 文件： | 总2页 (文件大小：151K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
A_S-W25 & B_LS-W25 Series
0.25W, FIXED INPUT, ISOLATED & UNREGULATED
DUAL/SINGLE OUTPUT DC-DC CONVERTER
multi-country patent protection RoHS
FEATURES
PRODUCT PROGRAM
Input
Output
Small Footprint
1KVDC Isolation
SIP Package
Internal SMD Construction
Temperature Range: -40°C to +85°C
No Heat sink Required
No External Component Required
Industry Standard Pinout
RoHS Compliance
Part
Number
Efficiency
(%, Typ)
Voltage (VDC)
Current (mA)
Max
75.8
Voltage
(VDC)
Nominal
3.3
Nominal
3.0-3.6
B0303LS-W25*
B0305LS-W25
A0505S- W25
A0509S- W25*
A0512S- W25
A0515S- W25
B0505LS- W25
B0509 LS- W25*
B0512 LS- W25
B0515 LS- W25
A1205S- W25*
A1209S- W25*
A1212S- W25*
A1215S- W25*
B1203 LS- W25*
B1205 LS- W25
B1209 LS- W25*
B1212 LS- W25
B1215 LS- W25*
A2405S- W25
A2409S- W25*
A2412S- W25*
A2415S- W25*
B2405 LS- W25
B2409 LS- W25*
B2412 LS- W25*
B2415 LS- W25*
B2424LS- W25*
*Designing.
3.3
5
62
65
62
64
66
65
64
65
67
65
62
63
64
65
62
65
66
67
66
63
64
65
65
63
63
65
65
64
50
±5
±9
±12
±15
5
±25
±13.8
±10.4
±8.3
50
5
4.5-5.5
9
27.8
20.8
16.7
±25
12
15
±5
±9
±12
±15
3.3
5
APPLICATIONS
The A_S-W25 & B_LS-W25 Series are specially
designed for applications where a group of polar
power supplies are isolated from the input power
supply in a distributed power supply system on a
circuit board.
±13.8
±10.4
±8.3
75.8
12
10.8-13.2
These products apply to:
50
1)
Where the voltage of the input power
9
27.8
20.8
16.7
±25
supply is fixed (voltage variation ≤ ±10%);
12
15
±5
±9
±12
±15
5
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, and IGBT power device
driving circuits.
±13.8
±10.4
±8.3
50
24
21.6-26.4
9
27.8
20.8
16.7
10.4
12
15
24
MODEL SELECTION
B0505LS-W25
COMMON SPECIFICATIONS
Rated Power
Package Style
Ou tput Volta ge
Item
Test conditions
Min
Typ Max
Units
%
Storage humidity
Operating Temperature
Storage Temperature
Temp. rise at full load
Lead temperature
Short circuit protection*
Cooling
95
85
Input Voltage
Product Se ries
-40
-55
125
°C
15
25
300
1
1.5mm from case for 10 seconds
s
MORNSUN Science& Technology co.,Ltd.
Address: 2th floor 6th building, Hangzhou
Industrial District, Guangzhou, China
Tel: 86-20-38601850
Free air convection
Plastic (UL94-V0)
Case material
MTBF
3500
K hours
Fax: 86-20-38601272
http://www.mornsun-power.com
Weight
2.1
g
*Supply voltage must be discontinued at the end of short circuit duration.
MORNSUN reserves the copyright
Specifications subject to change without notice.
A_S-W25 & B_LS-W25
A/2-2008
Page 1 of 2
ISOLATION SPECIFICATIONS
APPLICATION NOTE
Item
Test conditions
Min
Typ
Typ
Max
Units
VDC
MΩ
Requirement on output load
Isolation voltage
Tested for 1 minute and 1 mA max
1000
1000
To ensure this module can operate efficiently
and reliably, During operation, the minimum output
load is not less than 10% of the full load, and that
this product should never be operated under no
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.
Isolation resistance Test at 500VDC
OUTPUT SPECIFICATIONS
Item
Test conditions
Min
Max
0.25
±1.5
±1.2
20
Units
W
Output power
(3.3V input)
(Others input)
(3.3V output)
(5V output)
(9V output)
(12V output)
(15V output)
For Vin change
of ±1%
Line regulation
Load regulation
Overload Protection
Under normal operating conditions, the output
circuit of these products has no protection against
overload. The simplest method is to connect a
self-recovery fuse in series at the input end or add
a circuit breaker to the circuit.
12
10.5
8.3
6.8
6.3
%
15
10% to 100%
load
15
15
15
Recommended circuit
Output voltage accuracy
Temperature drift
See tolerance envelope graph
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).
100% full load
0.03 %/°C
Ripple & Noise*
20MHz Bandwidth
50
75
mVp-p
KHz
Switching frequency
Full load, nominal input
100
*Test ripple and noise by “parallel cable” method. See detailed operation instructions at Testing
of Power Converter section, application notes.
Dual Output
L
L
+Vo
Note:
Vin
Cout
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. Dual output models unbalanced load: ±5%.
0V
Cin
DC DC
Cout
L
L
GND
-Vo
Single Output
L
+Vo
0V
Vin
TYPICAL CHARACTERISTICS
Cout
Cin
DC DC
GND
(Figure 1)
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. It’s not recommended to connect any
external capacitor in the application field.
Operating Temp.(oC)
OUTLINE DIMENSIONS & PIN CONNECTIONS
Output Voltage Regulation and Over-voltage
Protection Circuit
First Angle Projection
The simplest device for output voltage
RECOMMENDED FOOTPRINT
Top view,grid:2.54*2.54mm(0.1*0.1inch),
diameter:1.00mm(0.039inch)
regulation,
over-voltage
and
over-current
protection is
a
linear voltage regulator with
Dual Output
overheat protection that is connected to the input
or output end in series (Figure 2).
2.54
2.10
(0.100)
(0.083)
2
1
4
5
6
6
Dual Output
Single Output
+Vout
REG
REG
REG
Vin
REG
0V
DC
DC
DC
1
2
4
GND
-Vout
Single Output
FOOTPRINT DETAILS
+Vout
0V
Vin
REG
(0.020)
Single
Vin
Dual
Vin
Pin
1
DC
GND
Note:
Unit:mm(inch)
Pin section:0.50*0.30mm(0.020*0.012inch)
Pin section tolerances: 0.10mm( 0.004inch)
General tolerances: 0.25mm( 0.010inch)
2
GND
0V
GND
-Vo
4
(Figure 2)
5
6
No Pin
+Vo
0V
+Vo
No parallel connection or plug and play.
MORNSUN reserves the copyright
Specifications subject to change without notice.
A_S-W25 & B_LS-W25
A/2-2008
Page 2 of 2
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