E_T-W2 & F_T-W2 Series
0.25W, FIXED INPUT, ISOLATED & UNREGULATED
DUAL/SINGLE OUTPUT DC-DC CONVERTER
UTRALMINIATURE SMD PACKAGE
Multi-country patent protection
RoHS
PRODUCT PROGRAM
FEATURES
Single Voltage Output
SMD Package Style
Industry Standard Pinout
No Heat sink Required
3KVDC Isolation
High Power Density
Internal SMD construction
Temperature Range: -40°C~+85°C
No External Component Required
RoHS Compliance
Part
Number
F0303T-W2
F0305T-W2
F0505T-W2
F0509T-W2
F0512T-W2
F0515T-W2
E0505T-W2
E0509T-W2
5
4.5-5.5
Nominal
3.3
Input
Voltage (VDC)
Range
3.0-3.6
Voltage
(VDC)
3.3
5
5
9
12
15
±5
±9
±12
±15
5
9
12
12
10.8-13.2
15
±5
±9
±12
±15
Output
Current (mA)
Max
75
50
50
28
21
17
±25
±14
±10.5
±8.5
50
28
21
17
±25
±14
±10.5
±8.5
Min
8
5
5
3
2
2
±3
±2
±1
±1
5
3
2
2
±3
±2
±1
±1
60
60
64
65
67
66
64
65
67
66
65
64
63
64
65
64
63
64
Efficiency
(%, Typ.)
APPLICATIONS
The E_T-W2&F_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
≤3000VDC);
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.
E0512T-W2
E0515T-W2
F1205T-W2
F1209T-W2
F1212T-W2
F1215T-W2
E1205T-W2
E1209T-W2
E1212T-W2
E1215T-W2
OUTPUT SPECIFICATIONS
Item
Output power
Line regulation
For Vin change of 1%(3.3V output)
For Vin change of 1%(Others output)
3.3V output
15
12.8
8.3
6.8
6.3
Test Conditions
Min
Typ.
Max
0.25
±1.5
±1.2
20
15
10
10
10
%
Units
W
MODEL SELECTION
Load regulation
5V output
10% to 100%
load
9V output
12V output
15V output
Output voltage accuracy
Temperature drift
Output ripple &Noise*
Switching frequency
100% full load
20MHz Bandwidth
Full load, nominal input
Rated Power
Package S tyl e
Output Voltage
Input Voltage
Product S eries
See tolerance envelope graph
0.03
50
100
75
%/°C
mVp-p
KHz
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
*Test ripple and noise by
“parallel
cable” method. See detailed operation instructions at Testing of Power
Converter section, application notes.
Note:
1. All specifications measured at T
A
=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.
F_T-W2&E_T-W 2
A/0-2007
Page 1 of 2
COMMON SPECIFICATION
Item
Storage humidity
Operating temperature
Storage temperature
Temp. rise at full load
Lead temperature
Cooling
Isolation voltage
Isolation resistance
Short circuit protection*
package material
MTBF
Weight
*Supply voltage must be discontinued at the end of short circuit duration.
APPLICATION NOTE
Min
-40
-55
15
Typ
Max
95
85
125
25
260
Free air convection
3000
1000
1
3500
1.71
VDC
MΩ
second
K hours
g
°C
Units
%
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.
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).
L
L
Test Conditions
1.5mm from case for 10 seconds
Tested for 1 minute and 1mA max
Test at 500VDC
Epoxy Resin(UL94-V0)
TYPICAL CHARACTERISTICS
Vin
Cin
+Vo
DC DC
(Figure 1)
Cout
GND
0V
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
Operating Temp.( C)
o
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
RECOMMENDED REFLOW SOLDERING PROFILE
250
Te mp eratu r e (
o
C)
200
150
100
50
0
Time ( sec .)
90 Sec Max
( >220
o
C )
26 0
o
C
1 0 S ec Max
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
220 C
o
protection is a linear voltage regulator with
overheat protection that is connected to the input
or output end in series (Figure2).
Dual O u tput
Vn
i
GND
R EG
REG
OUTLINE DIMENSIONS & FOOTPRINT DETAILS
First Angle Projection
+Vout
0V
DC DC
REG
-Vout
S ingle Output
RECOMMENDED FOOTPRINT
Top
view,grid:2.54mm(0.1inch),
diameter:1.00mm
2.00
(0.079)
Vn
i
GND
R EG
REG
+Vout
DC DC
0V
（Figure2）
Overload Protection
Under normal operating conditions, the output
circuit of these products has no protection
against overload. The simplest method is to
(0.039)
connect a self-recovery fuse in series at the input
end or add a circuit breaker to the circuit.
FOOTPRINT DETAILS
Pin
2
1
Single
Dual
No parallel connection or plug and play.
Vin
GND
0V
NC
+Vo
NC
Vin
GND
0V
-Vo
+Vo
NC
8
Others
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)
MORNSUN reserves the copyright
Specifications subject to change without notice.
F_T-W2&E_T-W 2
A/0-2007
Page 2 of 2
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