A_(X)T-W2 Series
0.25W,FIXED INPUT, ISOLATED & UNREGULATED
DUAL OUTPUT DC-DC CONVERTER
UTRALMINIATURE SMD PACKAGE
Patent Protection
RoHS
FEATURES
●
Small footprint
●
SMD Package Style
●
No Heat sink Required
●
1KVDC Isolation
●
Temperature Range: -40°C to +85°C
●
Internal SMD construction
●
No External Component Required
●
Industry Standard Pinout
●
RoHS Compliance
PRODUCT PROGRAM
Input
Part
Number
A0503(X)T-W2
A0505(X)T-W2
A0509(X)T-W2
A0512(X)T-W2
A0515(X)T-W2
A1205(X)T-W2
5
4.5-5.5
Voltage (VDC)
Nominal
Range
Voltage
(VDC)
±3.3
±5
±9
±12
±15
±5
12
10.8-13.2
±9
±12
±15
±5
24
21.6-26.4
±9
±12
±15
Output
Current (mA)
Max.
±38
±25
±14
±11
±9
±25
±14
±11
±9
±25
±14
±11
±9
Min.
±4
±3
±2
±2
±1
±3
±2
±2
±1
±3
±2
±2
±1
62
64
65
67
66
65
64
63
64
61
62
63
65
Efficiency
(%, Typ.)
APPLICATIONS
The A_(X)T-W2 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.
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 dem anding.
Such as: purely digital circuits, ordinary low
frequency analog circuits, and IGBT power device
driving circuits.
A1209(X)T-W2
A1212(X)T-W2
A1215(X)T-W2
A2405(X)T-W2
A2409(X)T-W2
A2412(X)T-W2
A2415(X)T-W2
Note: The A_XT-W2 series have no 3,6,8,9 pin. For example A0505XT-W2.
COMMON SPECIFICATIONS
Item
Storage humidity
Operating temperature
Storage temperature
Temp. rise at full load
Lead temperature
1.5mm from case for 10 seconds
-40
-55
15
Test Conditions
Min.
Typ.
Max.
95
85
125
25
260
Free air convection
Epoxy Resin (UL94-V0)
1
3500
1.70
s
K hours
g
°C
Units
%
MODEL SELECTION
Cooling
Package material
A0505(X)T-W2
Rated Power
Package Style
Output Voltage
Input Vo ltage
Product Series
Short circuit protection*
MTBF
Weight
*
Supply voltage must be discontinued at the end of short circuit duration.
ISOLATION SPECIFICATIONS
MORNSUN Science & Technology co.,Ltd.
Address: 2th floor 6th building, Huangzhou Industrial
District, Guangzhou, China
Tel: 86-20-38601850
Fax:86-20-38601272
Http://www.mornsun-power.com
Item
Isolation voltage
Isolation resistance
Test Conditions
Tested for 1 minute and 1mA max
Test at 500VDC
Min.
1000
1000
Typ.
Max.
Units
VDC
MΩ
The copyright and authority for the interpretation of the products are reserved by Mornsun
Specifications subject to change without notice.
A_(X)T-W2
A/2-2009
Page 1 of 3
OUTPUT SPECIFICATIONS
Item
Output power
Line regulation
For Vin change of 1%(3.3V output)
For Vin change of 1%(Others output)
10% to 100% load (3.3V output)
10% to 100% load (5V output)
Load regulation
10% to 100% load (9V output)
10% to 100% load (12V output)
10% to 100% load (15V output)
Output voltage accuracy
Temperature drift
Output ripple &Noise*
Switching frequency
100% full load
20MHz Bandwidth
Full load, nominal input(24V input)
Full load, nominal input (others input)
50
500
110
15
12.8
8.3
6.8
6.3
Test Conditions
Min.
Typ.
Max.
0.25
±1.5
±1.2
20
15
15
15
15
%
Units
W
TYPICAL CHARACTERISTICS
Tolerance Envelope Graph
+10%
+5%
Nominal
Voltage
Output Voltage
Ty p ic
a
l Lo a
d L i ne
+2.5%
-2.5%
-7.5%
10%
50%
100%
Output Current (
%)
Temperature Derating Graph
120
100
Output Power(%)
80
60
40
20
0
-40
0
40
85 105
Ambient Temperature
( C )
Safe Operating Area
See tolerance envelope graph
0.03
100
%/°C
mVp-p
KHz
*Test ripple and noise by
“parallel
cable” method. See detailed operation instructions at Testing of Power
Converter section, application notes.
RECOMMENDED REFLOW SOLDERING PROFILE
250
Temp eratu r e ( C)
200
150
100
50
0
Ti me ( s ec .)
90 Sec Ma x
o
( >22 0 C )
26 0
o
C
1 0 S ec Max
o
RECOMMENDED CIRCUIT
L
+Vo
C
C
GND
220 C
Vin
L
o
DC DC
(Figure 1)
0V
L
C
-Vo
Vin
GND
RE G
+Vo
DC
DC
0V
-Vo
APPLICATION NOTE
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, 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.
Vin
GND
REG
+Vo
0V
DC
DC
REG
-Vo
(Figure2)
Recommended 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).
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.
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 (Figure2).
Overload Protection
Under normal operating conditions, the output circuit of these products has no protection
against over-current and short-circuits. The simplest method is to connect a self-recovery fuse
in series at the input end or add a circuit breaker to the circuit.
No parallel connection or plug and play
The copyright and authority for the interpretation of the products are reserved by Mornsun
Specifications subject to change without notice.
A_(X)T-W2
A/2-2009
Page 2 of 3
OUTLINE DIMENSIONS & FOOTPRINT DETAILS
MECHANICAL DIMENSIONS
RECOMMENDED FOOTPRINT
A_T-W2
(Side View)
6.50 [0.256]
6.25 [0.246]
10 9
8
7
6
2.54 [0.100]
0.25 [0.010]
0.60 [0.024]
15.24 [0.600]
10.16 [0.400]
2.54 [0.100]
1
2
3
4
5
2.10 [0.083]
2.54 [0.100]
1.00 [0.039]
A_XT-W2
10
11.20 [0.441]
7
10 9
7.50 [0.295]
1
2
8
3
7
4
6
5
(Top View)
1
2
4
5
0.25 [0.010]
8.50 [0.335]
1.35 [0.053]
5
Note:
Unit: mm[inch]
Pin section tolerances: 0.10mm[ 0.039inch]
General tolerances: 0.15mm[ 0.006inch]
FOOTPRINT DETAILS
A_T-W2
Pin
A_XT-W2
1
GND
GND
2
Vin
Vin
4
0V
0V
-Vo
5
-Vo
7
+Vo
+Vo
NC
10
NC
3,6,8,9
NC
No Pin
NC:No Connection
TUBE OUTLINE DIMENSIONS
REEL PACKING OUTLINE DIMENSIONS
Taping dimension:
∅
1.50 [
∅
0.059]
2.00 [0.079]
1.75 [0.069]
11.50 [0.453]
0.50 [0.020]
24.00 [0.945]
14.10 [0.555]
8.90 [0.350]
15.65[0.616]
7.40
[0.291]
6.50 [0.256]
9.40
[0.370]
11.60 [0.457]
4.30 [0.169]
0.60 [0.024]
14.10 [0.555]
16.00[0.630]
∅
1.50 [
∅
0.059]
7.35 [0.289]
Taping reel dimension:
29.40 [1.157]
Note:
Unit: mm[inch]
General tolerances: 0.5mm[ 0.020inch]
L=530mm[20.866inch] Tube Quantity: 33pcs
L=220mm[8.661inch] Tube Quantity: 12pcs
∅
13.00 [
∅
0.512]
Note:
Unit: mm[inch]
General tolerances: 0.5mm[ 0.020inch]
Devices per reel quantity: 500pcs
∅
21.50 [
∅
0.846]
Note:
1. Operation under minimum load will not damage the converter; However, they may not meet all specification listed.
2. All specifications measured at Ta=25°C, humidity<75%, nominal input voltage and rated output load unless otherwise specified.
3. In this datasheet, all the test methods of indications are based on corporate standards.
4. Only typical models listed, other models may be different, please contact our technical person for more details.
The copyright and authority for the interpretation of the products are reserved by Mornsun
Specifications subject to change without notice.
A_(X)T-W2
A/2-2009
Page 3 of 3
330.00 [12.992]
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