MORNSUN B2409LD-W25

A_D-W25 & B_LD-W25 Series
0.25W, FIXED INPUT, ISOLATED & UNREGULATED
DUAL/SINGLE OUTPUT DC-DC CONVERTER
multi-country patent protection RoHS
FEATURES
PRODUCT PROGRAM
1KVDC Isolation
DIP Package
Internal SMD Construction
Temperature Range: -40°C to +85°C
No Heat sink Required
No External Component Required
Industry Standard Pinout
RoHS Compliance
Input
Part
Number
Output
Efficiency
(%, Typ)
Voltage
(VDC)
Current (mA)
3.3
75.8
62
5
50
65
A0505D- W25
±5
±25
62
A0509D- W25*
±9
±13.8
64
A0512D- W25*
±12
±10.4
66
A0515D- W25*
±15
±8.3
65
5
50
64
B0509 LD- W25*
9
27.8
65
B0512 LD- W25
12
20.8
67
specially designed for applications where a
B0515 LD- W25
15
16.7
65
group of polar power supplies are isolated from
A1205D- W25*
±5
±25
62
the input power supply in a distributed power
A1209D- W25*
±9
±13.8
63
supply system on a circuit board.
A1212D- W25*
±12
±10.4
64
These products apply to:
A1215D- W25*
±15
±8.3
65
1) Where the voltage of the input power supply
B1203 LD- W25*
3.3
75.8
62
B1205 LD- W25
5
50
65
2) Where isolation is necessary between input
B1209 LD- W25*
9
27.8
66
and output (isolation voltage ≤1000VDC);
B1212 LD- W25
12
20.8
67
3) Where the regulation of the output voltage
B1215 LD- W25*
15
16.7
66
A2405D- W25*
±5
±25
63
A2409D- W25*
±9
±13.8
64
A2412D- W25*
±12
±10.4
65
A2415D- W25*
±15
±8.3
65
5
50
63
B2409 LD- W25*
9
27.8
63
B2412 LD- W25*
12
20.8
65
B2415 LD- W25*
15
16.7
65
B2424LD- W25*
24
10.4
64
Nominal
B0303LD-W25*
B0305LD-W25*
B0505LD- W25
APPLICATIONS
The A_D-W25 & B_LD-W25 Series are
is fixed (voltage variation ≤ ±10%);
and
the
output
ripple
noise
are
not
demanding.
Such as: purely digital circuits, ordinary low
frequency analog circuits, and IGBT power
device driving circuits.
B2405 LD- W25
MODEL SELECTION
B0505 LD -W25
Voltage (VDC)
Range
3.3
5
12
24
3.0-3.6
4.5-5.5
10.8-13.2
21.6-26.4
Max
*Designing
Rated Pow er
Pack age S ty le
O utpu t Volt age
Input Volta ge
Produ ct Se ries
COMMON SPECIFICATIONS
Item
Test conditions
Min
Typ
-40
85
Storage Temp. Range
-55
125
Storage humidity range
Address: 2th floor 6th building, Hangzhou
Industrial District, Guangzhou, China
Tel: 86-20-38601850
Fax: 86-20-38601272
http://www.mornsun-power.com
°C
%
Free air convection
Temp. rise at full load
Lead temperature
Units
95
Cooling
MORNSUN Science & Technology co.,Ltd.
Max
Operating Temp. Range
15
1.5mm from case for 10 seconds
25
°C
300
Short circuit protection*
1
Case material
s
Plastic (UL94-V0)
MTBF
3500
Weight
K hours
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_D-W 25 & B_LD-W25
A/1-2008
Page 1 of 2
ISOLATION SPECIFICATIONS
APPLICATION NOTE
Item
Test conditions
Min
Typ
Max
Units
Isolation voltage
Tested for 1 minute and 1 mA max
1000
VDC
Isolation resistance
Test at 500VDC
1000
MΩ
Requirement on output load
To ensure this module can operate efficiently
and reliably, During operation, the minimum
output load is not less than 10% of the full load,
OUTPUT SPECIFICATIONS
Item
and that
Test conditions
Min
Typ
Output power
For Vin change of 1% (3.3output)
(others output)
Line regulation
Load regulation
10% to 100% load
operated under no load! If the actual output
0.25
W
power is very small, please connect a resistor
±1.5
with proper resistance at the output end in
±1.2
parallel to increase the load.
12
20
(5V output)
10.5
15
(9V output)
8.3
10
(12V output)
6.8
10
(15V output)
6.3
10
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
See tolerance envelope graph
Temperature drift
100% full load
Ripple & Noise*
20MHz Bandwidth
50
Switching frequency
Full load, nominal input
100
be
Units
(3.3 output)
Output voltage accuracy
this product should never
Max
input end or add a circuit breaker to the circuit.
0.03
%/°C
75
mVp-p
KHz
Recommended circuit
If you want to further decrease the input/output
“LC”
*Test ripple and noise by “parallel cable” method. See detailed operation instructions at Testing of Power
ripple,
Converter section, application notes.
connected to the input and output ends of the
an
filtering
network
Note:
1.All specifications measured at TA=25°C, humidity<75%, nominal input voltage and rated output load
unless otherwise specified.
2.Dual output models unbalanced load: ±5%.
DC/DC converter, see (Figure 1).
D u al O utpu t
be
L
L
+Vo
Vin
TYPICAL CHARACTERISTICS
may
Cout
DC DC
Cin
0V
L Cout
GND
-Vo
Sin g le O utpu t
L
Vin
L
+Vo
Cout
DC DC
Cin
GND
0V
(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
o
Operating Temp.( C)
mutual interference. However, the capacitance of
the output filter capacitor must be proper. If the
OUTLINE DIMENSIONS & PIN CONNECTIONS
capacitance is too big, a startup problem might
Fi rst A ngle P ro jecti on
7.62
(0.300)
10. 00
(0.394)
arise. It’s not recommended to connect any
external capacitor in the application field .
RECOMMENDED FOOTPRINT
Top view, grid: 2.54*2. 54mm(0. 1*0.1inch)
diameter:1.00 (0. 039)mm
(Side View)
Output Voltage Regulation and Over-voltage
Protection Circuit
The simplest device for output voltage
Single Output
4.10
(0. 161)
7.00
(0.276)
20.00(0.787)
14
15.24(0.600)
1
14
(Bottom View)
11
11
regulation,
9 8
7
1
Dual Output
Du a l O u tput
Vi n
MORNSUN reserves the copyright
over-current
or output end in series (Figure 2).
14
FOOTPRINT DETAILS
Single
Pin
Dual
1
GND
GND
7
NC
NC
0V
8
0V
+Vo
+Vo
9
11
No Pin
-Vo
14
Vin
Vin
and
overheat protection that is connected to the input
7
9 8
over-voltage
protection is a linear voltage regulator with
11
R EG
9 8
GN D
1
REG
+Vout
REG
-Vo ut
REG
+Vout
0V
DC DC
7
Sing le Ou tp ut
Vi n
Note:
Unit:mm(inch)
Pin section:0.50*0.30mm(0.020*0.012inch)
Pin tolerances: 0.10mm( 0.004inch)
General tolerances: 0.25mm( 0.010inch)
Specifications subject to change without notice.
R EG
GN D
DC DC
0V
(Figure 2)
No parallel connection or plug and play.
A_D-W25 & B_LD-W25
A/1-2008
Page 2 of 2