MORNSUN B1209LT-2W

A_LT-2W & B_LT-2W Series
2W, FIXED INPUT, ISOLATED & UNREGULATED,
DUAL/SINGLE OUTPUT, SMD, DC-DC CONVERTER
FEATURES
multi-country patent protection
RoHS
PRODUCT PROGRAM
High Efficiency up to 85%
SMD Package
1KVDC Isolation
Temperature Range: -40°C to +85°C
Internal SMD Construction
No Heat sink Required
No External Component Required
Industry Standard Pinout
RoHS Compliance
Input
Part
Number
Efficiency
(%, Typ)
Current (mA)
Voltage
(VDC)
Max
Min
A0505LT-2W
±5
±200
±20
82
A0509LT-2W
±9
±111
±11
83
A0512LT-2W
±12
±83
±8
84
A0515LT-2W
±15
±67
±7
82
5
400
40
80
B0509LT-2W
9
222
23
82
B0512LT-2W
12
167
17
84
B0515LT-2W
15
133
14
84
A1205LT-2W
±5
±200
±20
A1209LT-2W
±9
±111
±11
83
84
Nominal
B0505LT-2W
APPLICATIONS
Output
Voltage (VDC)
5
Range
4.5-5.5
are
A1212LT-2W
±12
±83
±8
84
specially designed for applications where a
A1215LT-2W
±15
±67
±7
85
group of polar power supplies are isolated from
B1205LT-2W
5
400
40
82
the input power supply in a distributed power
B1209LT-2W
9
222
23
83
B1212LT-2W
12
167
17
85
B1215LT-2W
15
133
14
85
The A_LT-2W
& B_LT-2W
Series
supply system on a circuit board.
These products apply to:
1) Where the voltage of the input power supply
is fixed (voltage variation ≤ ±10%);
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
12
OUTPUT SPECIFICATIONS
Item
Test Conditions
frequency analog circuits, and IGBT power
Min
Output power
Line regulation
Load regulation
12.8
15
10% to 100% load (9V output)
8.3
15
10% to 100% load (12V output)
6.8
15
6.3
15
10% to 100% load (15V output)
MORNSUN Science& Technology co.,Ltd.
W
%
See tolerance envelope graph
Temperature drift
100% full load
Ripple & Noise*
20MHz Bandwidth
75
Switching frequency
Full load, nominal input
70
0.03
%/°C
150
mVp-p
KHz
*Test ripple and noise by “parallel cable” method. See detailed operation instructions at Testing of Power
Converter
Section, application notes.
COMMON SPECIFICATION
Item
Test Conditions
Min
Typ
Storage humidity
Operating temperature
-40
Storage temperature
-55
Lead temperature
Address: 2th floor 6th building, Hangzhou
Industrial District, Guangzhou, China
Tel: 86-20-38601850
Fax: 86-20-38601272
http://www.mornsun-power.com
Units
±1.2
10% to 100% load (5V output)
Output voltage accuracy
Rated Power
Package Style
Output Vol tage
Input Voltage
Product Series
Max
2
For Vin change of 1%
device driving circuits.
MODEL SELECTION
A0505LT-2W
Typ
0.2
demanding.
Such as: purely digital circuits, ordinary low
10.8-13.2
Temp. rise at full load
Units
95
%
85
125
15
1.5mm from case for 10 seconds
°C
25
260
Cooling
Free air convection
Short circuit protection*
1
Case material
MTBF
Max
s
Plastic(UL94-V0)
3500
Weight
K hours
2.1
g
*Supply voltage must be discontinued at the end of short circuit duration.
Note: 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.
MORNSUN reserves the copyright
Specifications subject to change without notice.
A_LT-2W & B_LT-2W
A/1-2008
Page 1 of 2
ISOLATION CHARACTERISTICS
Item
Test Conditions
Min
Isolation voltage
Tested for 1 minute and 1mA max
1000
VDC
1000
MΩ
Isolation resistance Test at 500VDC
Typ
Max
Units
Overload Protection
Under norm al 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.
TYPICAL CHARACTERISTICS
Recommended testing and application circuit
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).
Dual Out put
L
L
+Vo
Vin
P eak.Temp 260 C
10 S ec Max
220 C
0V
-Vo
Singl e Output
RECOMMENDED REFLOW SOLDERING PROFILE
Temperature ( C )
L Cout
GND
Operating Temp.(oC)
200
+Vo
Cout
DC DC
Cin
250
L
L
Vin
Cout
DC DC
Cin
GND
0V
(Figure 1)
150
It should also be noted that the inductance and the
90 S ec M ax
( > 220 C )
100
frequency of the “LC” filtering network should be
staggered with the DC/DC frequency to avoid mutual
interference. However, the capacitance of the output
50
filter capacitor must be proper. If the capacitance is
0
too big, a startup problem might arise. For every
Ti me (sec.)
channel of output, provided the safe and reliable
OUTLINE DIMENSIONS & PIN CONNECTIONS
operation is ensured, the recommended capacitance
12.70(0.500)
17.78(0.700)
14 13 12
2.54
(0.100)
EXTERNAL CAPACITOR TABLE (TABLE 1)
0.2 5
(0.010)
1.27
(0.050)
of its filter capacitor sees (Table 1).
A
2.75
(0.108)
6.00
(0.236)
5.75
(0.226)
First Angle Projection
RECOMMENDED FOOTPRINT
Top view,grid:2.54*2.54mm(0.1*0.1inch)
10 9 8
Dual output & Single Output
1 2 3
5 6 7
2.00
(0.079)
14 13 12
10 9 8
Vin
(VDC)
Cin
(uF)
5
4.7
Single
Vout
(VDC)
5
Cout
(uF)
10
Dual
Vout
(VDC)
±5
Cout
(uF)
12
2.2
9
4.7
±9
-
-
12
2.2
±12
2.2
1
-
-
15
1
±15
0.47
4.7
It’s not recommended to connect any external capacitor in
the application field with less than 0.5 watt output.
17.78 (0.700)
1 2 3
5 6 7
A
0.5
(0.020)
1.00
(0.039)
。
5.0 MAX
1.30 0.13
(0.052 0.005)
Note:
Unit:mm(inch)
Pin section:0.60*0.25mm(0.024*0.010inch)
Pin tolerances: 0.10mm( 0.004inch)
General tolerances: 0.25mm( 0.010inch)
FOOTPRINT DETAILS
Singles
Pin
Duals
1
GND
GND
2
Vin
Vin
5
NC
-Vo
6
0V
0V
7
+Vo
+Vo
10
NC
-Vo
Others
NC
NC
NC:No Connection
APPLICATION NOTE
Output Voltage Regulation and Over-voltage
Protection Circuit
The simplest device for output voltage regulation,
over-voltage and over-current protection is a linear
voltage regulator with overheat protection that is
connected to the input or output end in series (Figure
2).
Du a l O u tp u t
Vin
REG
REG
+Vout
REG
-Vout
REG
+Vout
DC DC
GND
0V
S in g l e O u tp u t
Requirement on output load
To ensure this module can operate efficiently and reliably, During operation, the minimum
Vin
REG
DC DC
GND
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, or use our company’s
0V
(Figure 2)
No parallel connection or plug and play.
products with a lower rated output power (A_T -1W/B_T-1W series).
MORNSUN reserves the copyright
Specifications subject to change without notice.
A_LT-2W & B_LT-2W
A/1-2008
Page 2 of 2