F0303XT-1W Datasheet, PDF (2/3 Pages) MORNSUN Science& Technology Ltd. – DC/DC Converter

DC/DC Converter
F_XT-1W Series
General Specifications
Item
Isolation Voltage
Isolation Resistance
Isolation Capacitance
Operating Temperature
Storage Temperature
Casing Temperature Rise
Pin Welding Resistance Temperature
Operating Conditions
Input-output, with the test time of 1 minute
and the leak current lower than 1mA
Input-output, isolation voltage 500VDC
Input-output, 100KHz/0.1V
Derating if the temperature ≥85℃,
(see Fig. 2)
Ta=25℃
Welding spot is 1.5mm away from the casing,
10 seconds
Reflow Soldering Temperature
Storage Humidity
Switching Frequency
MTBF
Non-condensing
100% load, nominal input voltage
MIL-HDFK-217F@25°C
Min.
Typ.
3000
--
1000
--
--
20
-40
--
-55
--
--
15
Max.
--
--
--
85
125
25
Unit
VDC
MΩ
pF
℃
--
--
260
Peak temp.≤245℃, maximum duration time≤60s
at 217℃. For actual application, please refer to
IPC/JEDEC J-STD-020D.1.
--
--
95
%
--
100
--
KHz
3500
--
--
K hours
Physical Specifications
Casing Material
Package Dimensions
Weight
Cooling Method
Black flame-retardant heat-proof epoxy resin (UL94-V0)
12.70*11.20*6.25 mm
1.4g (Typ.)
Free air convection
Product Characteristic Curve
Toleran ce Envelope Graph
+10%
+5%
Rated
Output Voltage
Typical _{Load Cu rve}
+2.5%
-2 .5 %
-7 .5 %
50 70
100
Output Current Percentage(%)
(Nominal Input Voltage)
Fig. 1
Te m pe ra tu re D e rati ng Gr aph
120
100
80
60
Safe Operating Area
40
20
0
- 40
0
40
85 105 120
Ambi ent Temperat ure(℃ )
Fig. 2
Design Reference
1. Typical application
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 3).
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. 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 voltage regulator with overheat
protection that is connected to the input or output end in series (see Fig. 4).
L
Vin
L
+Vo
Vin
REG
REG
+Vo
Cin
DC DC
Cout
DC DC
GND
GND
0V
0V
Fig.3
Fig.4
Recommended capacitive load value table (Table 1)
Vin
Cin
Vout
Cout
(VDC)
(µF)
(VDC)
(µF)
3.3/5
4.7
3.3/5
10
12
2.2
12
2.2
--
--
15
1
It is not recommended to connect any external capacitor when output power is less than 0.5W.
2014.05.22-A/2
Page 2 of 3
MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation