MORNSUN B2412T-W2 Dc/dc converter Datasheet

DC/DC Converter
B_(X)T-W2 Series
0.25W, Fixed input voltage, isolated & unregulated
single output
FEATURES
z
z
z
z
Temperature range: -40℃~+85℃
Good temperature characteristic
Isolation voltage: 1K VDC
SMD package
z Internal surface mounted design
z International standard pin-out
Patent Protection RoHS
B_(X)T-W2 series is specially designed for applications where an isolated voltage is required in a distributed power supply system. It is suitable
for
1.Where the voltage of the input power supply is stable (voltage variation: ±10%Vin);
2.Where isolation is necessary between input and output (isolation voltage ≤1000VDC);
3.Where do not has high requirement of line regulation , load regulation and the ripple & noise of the output voltage;
Such as: pure digital circuits, low frequency analog circuits, and IGBT power device driving circuits.
Selection Guide
Input Voltage (VDC)
Part No.
B0303(X)T-W2
B0305T-W2
Output
Efficiency
(%,Min./Typ.)
Max. Capacitive
Load
(Max./Min.)
@ Full Load
(μF)
76/8
57/61
Nominal
Output Voltage
Output Current (mA)
(Range)
(VDC)
3.3
3.3
(2.97-3.63)
5
50/5
58/62
12
21/3
59/63
B0503(X)T-W2
3.3
76/8
58/62
B0505(X)T-W2
5
50/5
60/64
B0312T-W2
B0509(X)T-W2
B0512T-W2
5
(4.5-5.5)
B0515T-W2
9
28/3
61/65
12
21/3
63/67
15
17/2
61/65
B0524T-W2
24
10/1
62/66
B1203T-W2
3.3
76/8
56/60
5
50/5
60/64
B1205T-W2
B1209T-W2
12
(10.8-13.2)
9
28/3
60/64
B1212T-W2
12
21/3
59/63
B2403T-W2
3.3
76/8
56/60
5
50/5
56/60
9
28/3
57/61
12
21/3
59/63
15
17/2
61/65
B2405T-W2
B2409T-W2
B2412T-W2
24
(21.6-26.4)
B2415T-W2
220
Input Specifications
Item
Input Current (full load / no-load)
Operating Conditions
Min.
Typ.
Max.
3.3V input
--
125/50
--
5V input
--
81/25
--
12V input
--
35/10
--
24V input
Surge Voltage (1sec. max.)
--
18/8
--
3.3V input
-0.7
--
6
5V input
-0.7
--
9
12V input
-0.7
--
18
24V input
-0.7
--
30
2014.05.22-B/2
Unit
mA
VDC
Page 1 of 4
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DC/DC Converter
B_(X)T-W2 Series
Reflected Ripple Current
3.3V/5V input
--
20
--
12V/24V input
--
5
--
Input Filter
mA
Capacitor filter
Output Specifications
Item
Operating Conditions
Min.
Output Voltage Accuracy
Typ.
Max.
Unit
See tolerance envelope graph (Fig. 1)
Input voltage
change: ±1%
Line Regulation
Load Regulation
10%-100% load
3.3V output
--
--
±1.5
Other output
--
--
±1.2
20
3.3V output
--
15
5V output
--
12
9V output
--
9
12V output
--
8
15V output
--
7
24V output
--
%
15
--
6
Ripple & Noise*
20MHz bandwidth
--
50
75
mVp-p
Temperature Drift Coefficient
100% load
--
--
±0.03
%/℃
--
1
s
Output Short Circuit Protection**
--
Note: * Ripple and noise tested with “parallel cable” method, please see DC-DC Converter Application Notes for specific operation methods.
** Supply voltage must be discontinued at the end of short circuit duration.
General Specifications
Item
Operating Conditions
Min.
Isolation Voltage
Input-output, with the test time of 1 minute and the leak
current lower than 1mA
1000
--
--
VDC
Isolation Resistance
Input-output, isolation voltage 500VDC
1000
--
--
MΩ
Operating Temperature
Derating if the temperature ≥85℃, (see Fig. 2)
Storage Temperature
Casing Temperature Rise
Ta=25℃
Pin Welding Resistance Temperature
Welding spot is 1.5mm away from the casing, 10 seconds
Typ.
Max.
-40
--
85
-55
--
125
--
15
--
--
--
300
Unit
℃
Peak temp.≤245℃, maximum duration
time≤60s at 217℃.
For actual application, please refer to
IPC/JEDEC J-STD-020D.1.
Reflow Soldering Temperature
Storage Humidity
Non-condensing
Switching Frequency
100% load, nominal input
voltage
MTBF
MIL-HDFK-217F@25℃
--
--
24V input
--
500
--
95
Other input
--
110
--
3500
--
--
%
KHz
K hours
Physical Specifications
Casing Material
Black flame-retardant heat-proof epoxy resin (UL94-V0)
Package Dimensions
12.70*11.20*6.25 mm
Weight
1.4 g (Typ.)
Cooling Method
Free air convection
Tolerance Envelope Graph
+10%
+5%
Output Voltage
Accuracy(%)
Rated
Output Voltage
Ty p ic a
l Lo ad
C u rv e
+2.5%
-2.5%
-7.5%
50
70
100
Output Current Percentage(%)
(Nominal Input Voltage)
Fig. 1
Output Power Per centage(%)
Product Characteristic Curve
Temperatu re Derating Graph
120
100
80
60
40
Safe Operati ng Area
20
0
-40
40
85 105 120
0
Ambi ent Temperature(℃ )
Fig. 2
2014.05.22-B/2
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MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation
DC/DC Converter
B_(X)T-W2 Series
Design Reference
1. Typical application
If it is required to further reduce input and output ripple, a filter capacitor can be connected to the input and output terminals, see Fig.3.
Moreover, choosing suitable filter capacitor is very important, start-up problems may be caused by too large capacitance. To ensured the
modules running well, the recommended capacitive load values as shown in Table 1.
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 (see Fig.4)
+Vo
Vin
C in
DC
Vin
DC
Cout
GND
0V
REG
REG
+Vo
DC DC
GND
0V
Fig.4
Fig.3
Recommended capacitive load value table (Table 1)
Vin(VDC)
3.3/5
12
24
---
Cin(μF)
4.7
2.2
1
---
Vo (VDC)
3.3/5
9
12
15
24
Cout(μF)
10
4.7
2.2
1
0.47
2. Output load requirements
To ensure the module work efficiently and reliably, during the operation, the min. output load should be no less than 10% of the full load. If
the actual output power is low, please connect a resister to the output terminal in parallel, with a recommenced resistance which is 10% of
the rated power, and derating is required during operation.
3. For more information please find the application notes on www.mornsun-power.com
Dimensions and Recommended Layout
2014.05.22-B/2
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DC/DC Converter
B_(X)T-W2 Series
Notes:
1.
Packing Information please refer to 'Product Packing Information'. Packing bag number: 58200021;
2.
If the product is operated under the min. required load, the product performance cannot be guaranteed to comply with all
performance indexes in this datasheet;
3.
The max. capacitive load should be tested within the input voltage range and under full load conditions;
4.
Unless otherwise specified, data in this datasheet should be tested under the conditions of Ta=25°C, humidity<75% when inputting
nominal voltage and outputting rated load;
5.
All index testing methods in this datasheet are based on our Company’s corporate standards;
6.
The performance indexes of the product models listed in this manual are as above, but some indexes of non-standard model products
will exceed the above-mentioned requirements, and please directly contact our technicians for specific information;
7.
We can provide product customization service;
8.
Specifications of this product are subject to changes without prior notice.
MORNSUN Guangzhou 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: 86-20-38601850-8801
Fax: 86-20-38601272
E-mail: [email protected]
2014.05.22-B/2
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