1/3
VIFSD1-DIP Series DC-DC Converter
Rev. 01-2006
Description
Designed to convert fixed volt-
ages into an isolated regulated
voltage, the VIFSD1-DIP series is
well suited for providing board-
mount local supplies in a wide
range of applications, including
mixed analog/digital circuits, test
& measurement equip.,
process/machine controls, data-
com/telecom fields, etc...
Features
·Isolated 1 W output
·Regulated
·High efficiency to 73%
·Single voltage output
·Small footprint
·DIP package style
·Industry standard pinout
·UL94-V0 package
·No heatsink required
·3K Vdc isolation
·Temperature range: -40°C~+85°C
·No external component required
·Low cost
Model
Number
VIFSD1-S5-S5-DIP
VIFSD1-S5-S9-DIP
VIFSD1-S5-S12-DIP
VIFSD1-S5-S15-DIP
VIFSD1-S12-S5-DIP
VIFSD1-S12-S9-DIP
VIFSD1-S12-S12-DIP
VIFSD1-S12-S15-DIP
VIFSD1-S24-S5-DIP
VIFSD1-S24-S9-DIP
VIFSD1-S24-S12-DIP
VIFSD1-S24-S15-DIP
Input Voltage
Nominal
Range
5 Vdc
4.75~5.25 Vdc
5 Vdc
4.75~5.25 Vdc
5 Vdc
5 Vdc
12 Vdc
12 Vdc
12 Vdc
12 Vdc
24 Vdc
24 Vdc
24 Vdc
24 Vdc
4.75~5.25 Vdc
4.75~5.25 Vdc
11.4~12.6 Vdc
11.4~12.6 Vdc
11.4~12.6 Vdc
11.4~12.6 Vdc
22.8~25.2 Vdc
22.8~25.2 Vdc
22.8~25.2 Vdc
22.8~25.2 Vdc
Output
Voltage
5 Vdc
9 Vdc
12 Vdc
15 Vdc
5 Vdc
9 Vdc
12 Vdc
15 Vdc
5 Vdc
9 Vdc
12 Vdc
15 Vdc
Output Current
Max.
Min.
150 mA
15 mA
111 mA
12 mA
83mA
67 mA
150 mA
111 mA
83 mA
67 mA
150 mA
111 mA
83 mA
67 mA
9 mA
7 mA
15 mA
12 mA
9 mA
7 mA
15 mA
12 mA
9 mA
7 mA
Efficiency
69%
70%
71%
72%
69%
71%
72%
72%
70%
72%
73%
73%
Package
Style
DIP
DIP
DIP
DIP
DIP
DIP
DIP
DIP
DIP
DIP
DIP
DIP
Note:
1. All specifications measured at TA=25°C, humidity <75%, nominal input voltage and rated output load unless
otherwise specified.
Output Specifications
Item
Output power
Line Regulation
Load Regulation
Output voltage accuracy
Temperature drift
Output ripple & noise
Switching frequency
Test conditions
For Vin change of 1%
10% to 100% full load
100% full load
100% full load
20Hz - 300 KHz Bandwidth
Full load, nominal input
10
100
Min.
0.1
Typ.
Max.
1
0.25
1
±3
0.03
15
Units
W
%
%
%/°C
mVp-p
KHz
V-Infinity, LLC, 20050 SW 112th Ave., Tualatin, OR 97062
www.v-infinity.com
1-866-372-1258
2/3
VIFSD1-DIP Series DC-DC Converter
Rev. 01-2006
General Specifications
Short circuit protection
Temperature rise at full load
Cooling
Operating temperature range
Storage temperature range
Soldering temperature
Storage humidity range
Case material
MTBF
Burn-in
<1 second
25°C Max, 15°C Typ.
Free air convection
-40°C to +85°C
-55°C to +125°C
<= 300°C (1.5mm from case for 10 sec.)
<95%
Plastic (UL94-V0)
>3,500,000 hrs.
At +85°C, for 4 hours at no-load and 4 hours at full load.
Isolation Specifications
Item
Isolation Voltage
Insulation Resistance
Test Conditions
Tested for 1 min.
Test at 500 Vdc
Min.
3000
1000
Typ.
Max.
Units
Vdc
M
Ω
Typical Characteristics
Temperature Derating Graph
Output Power (%)
Safe Operating Area
71 85
Ambient Temperature
( )
Outline Dimensions &
Recommended Layout Pattern
Side View
Layout
1
14
9
7
Bottom View
Pin
1
7
9
11
14
-Vin
NC
+Vout
-Vout
+Vin
1
14
9
7
Note: All Pins on a 2.54mm pitch; All Pin diameters are 0.50 mm; all dimensions in mm.
V-Infinity, LLC, 20050 SW 112th Ave., Tualatin, OR 97062
www.v-infinity.com
1-866-372-1258
3/3
VIFSD1-DIP Series DC-DC Converter
Rev. 01-2006
Application Notes:
- Input filtering
To reduce the reflected ripple current and minimize
EMI, especially when the converter input is more
than 2” away from the DC source, it is recommended
to connect a low ESR electrolytic capacitor between
Vin and Gnd. The values suggested are as shown in
Table 1. If additional filtering is required, the
capacitance may be increased, or expanded to an LC
network as shown in Figure 1.
- Minimum loading
The converter needs a minimum of 10% loading to
maintain output regulation. Operation under no-load
conditions will not cause immediate damages but
may reduce reliability, and cause performance not to
meet specifications.
- Protection
The converter has minimal protection against input
over-voltage or output over-load, and may be
permanently damaged if exposed to these conditions.
An input clamping device can be used for input
voltage limiting. An input fuse or an output fuse
can also be used to protect against over-loading.
Table 1
Input Voltage
5V
12 V
24 V
External Input Capacitance
- Unregulated input
4.7 µF
2.2 µF
1.0 µF
As fixed input converters, this series can accept
voltages within a limited range of the nominal input.
Otherwise the converter may not function properly or
may be damaged. An optional regulator can be used
at the input to bring voltage within regulation, as
shown in Figure 2.
- Output filtering
An output capacitor as shown in Table 2 may be used
to reduce output ripples and noise.
requirements as shown in Table 2.
Output capacitance may be increased for additional
filtering, but should not exeed 10µF. It can also be
expanded to an LC network as in Figure 1.
<Figure 2>
+Vin
-Vin
REG
+Vout
DC DC
-Vout
Table 2
Vout
5V
9V
12 V
15 V
External Ouput Capacitance
4.7 µF
2.2 µF
1.0 µF
0.47 µF
L
L
+Vin
C
+Vout
DC DC
<Figure 1>
C
-Vin
-Vout
V-Infinity, LLC, 20050 SW 112th Ave., Tualatin, OR 97062
www.v-infinity.com
1-866-372-1258
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