Datasheet

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date
01/28/2013
page
1 of 6
SERIES: VFSD1-SIP │ DESCRIPTION: DC-DC CONVERTER
FEATURES
U
ED
1 W isolated output
industry standard pinout
unregulated
single output (5~24 V)
small footprint
3,000 V isolation
short circuit protection
temperature range (-40~85°C)
efficiency up to 81%
RoHS
MODEL
input
voltage
output
voltage
VFSD1-S3.3-S3.3-SIP
3.3
VFSD1-S3.3-S5-SIP
3.3
VFSD1-S5-S5-SIP
5
VFSD1-S5-S12-SIP
5
VFSD1-S5-S15-SIP
5
VFSD1-S5-S24-SIP
5
12
12
output
power
ripple
noise
efficiency
(Vdc)
min
(mA)
max
(mA)
max
(W)
max
(mVp-p)
typ
(%)
3.0 ~ 3.6
3.3
31
303
1
100
69
3.0 ~ 3.6
5
20
200
1
100
74
4.5 ~ 5.5
5
20
200
1
30
80
4.5 ~ 5.5
12
9
83
1
30
80
4.5 ~ 5.5
15
7
67
1
60
81
4.5 ~ 5.5
24
5
42
1
60
81
10.8 ~ 13.2
5
20
200
1
30
80
10.8 ~ 13.2
12
9
83
1
30
80
12
10.8 ~ 13.2
15
7
67
1
60
81
15
13.5 ~ 16.5
5
20
200
1
30
80
15
13.5 ~ 16.5
15
7
67
1
60
81
24
21.6 ~ 26.4
5
20
200
1
30
79
VFSD1-S24-S12-SIP
24
21.6 ~ 26.4
12
9
83
1
30
81
VFSD1-S24-S15-SIP
24
21.6 ~ 26.4
15
7
67
1
60
82
VFSD1-S12-S15-SIP
VFSD1-S15-S5-SIP
VFSD1-S15-S15-SIP
IS
C
VFSD1-S24-S5-SIP
O
VFSD1-S12-S5-SIP
VFSD1-S12-S12-SIP
output
current
TI
range
(Vdc)
N
typ
(Vdc)
N
•
•
•
•
•
•
•
•
•
Note:
1. Ripple and noise measured at 20 mHz BW
D
PART NUMBER KEY
VFSD1-S XX -S XX -SIP
Base Number
Input Voltage
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Output Voltage
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CUI Inc │ SERIES: VFSD1-SIP │ DESCRIPTION: DC-DC CONVERTER
date 01/28/2013 │ page 2 of 6
INPUT
conditions/description
min
typ
max
units
operating input voltage
5 V model
12 V model
15 V model
24 V model
4.5
10.8
13.5
21.6
5
12
15
24
5.5
13.2
16.5
26.4
Vdc
Vdc
Vdc
Vdc
input surge voltage
1 second max.
-0.7
-0.7
-0.7
-0.7
9
18
21
30
Vdc
Vdc
Vdc
Vdc
input filter
C filter
max
units
±1.2
%
10
8
7
6
15
15
15
15
%
%
%
%
100
300
kHz
±0.03
%/°C
parameter
conditions/description
voltage accuracy
see derating curves
line regulation
for Vin change of ±1%
load regulation
10 ~ 100% full load
switching frequency
100% load, nominal input voltage
temperature coefficient
100% load
min
N
5 V model
12 V model
15 V model
24 V model
TI
PROTECTIONS
U
OUTPUT
ED
parameter
conditions/description
short circuit protection
continuous, automatic recovery
N
parameter
typ
min
typ
max
units
min
typ
max
units
SAFETY AND COMPLIANCE
conditions/description
isolation voltage
tested for 1 minute at 1 mA max.
3,000
Vdc
isolation resistance
at 500 Vdc
1,000
MΩ
isolation capacitance
EMI/EMC
RoHS compliant
input to output, 100 kHz / 0.1 V
20
pF
CISPR22/EN 55022 Class B, IEC/EN 61000-4-2
yes
MIL-HDBK-217F, 25°C
3,500,000
IS
C
MTBF
O
parameter
hours
ENVIRONMENTAL
parameter
conditions/description
min
operating temperature
storage temperature
storage humidity
non-condensing
temperature rise
100% load
lead temperature
1.5 mm from the case for 10 seconds
max
units
-40
typ
105
°C
-55
125
°C
95
%
D
25
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°C
300
°C
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CUI Inc │ SERIES: VFSD1-SIP │ DESCRIPTION: DC-DC CONVERTER
date 01/28/2013 │ page 3 of 6
EMC RECOMMENDED CIRCUIT
LDM
Vin
+Vo
ED
Vin
LOAD
C1
GND
GN D
- Vo
(0V)
RECOMMENDED EXTERNAL
CIRCUIT PARAMETERS
U
C2
Vin = 5V
Vin = 12V
C1
Vin = 15V
Vin = 24V
475 k / 50 V
6.8 µH
N
LDM
---
470 pF / 2 kV
TI
C2
N
DERATING CURVES
80
60
O
Load (%)
100
40
20
-20
0
20
40
60
85
Ambient Temperature (°C)
D
IS
C
-40
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105
120
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CUI Inc │ SERIES: VFSD1-SIP │ DESCRIPTION: DC-DC CONVERTER
date 01/28/2013 │ page 4 of 6
MECHANICAL
conditions/description
0.768 x 0.236 x 0.39 (19.50 x 6.00 x 10.0 mm)
min
case material
Plastic (UL94-V0)
typ
max
inch
weight
2.4
MECHANICAL DRAWING
19.50 [0.768]
Ф1.10 [0.043]
N
0.35 [0.013]
1
2
5
7
TI
(Main V iew)
g
U
units: mm [inches]
tolerance: ±0.25 [±0.010]
pin section tolerance: ±0.10 mm [±0.004]
9.35 [0.368]
Note: grid 2.54*2.54mm.
2.54 [0.100]
4.10 [0.161]
(B ottom View)
0.60[0.024]
0.25 [0.010]
1.75 [0.069]
D
IS
C
6.00 [0.236]
O
N
15.24[0.600]
units
ED
parameter
dimensions
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PIN CONNECTIONS
PIN
FUNCTION
1
Vin
2
GND
5
0V
7
+Vo
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CUI Inc │ SERIES: VFSD1-SIP │ DESCRIPTION: DC-DC CONVERTER
date 01/28/2013 │ page 5 of 6
APPLICATION NOTES
ED
1. Requirement on output load
To ensure this module can operate efficiently and reliably, During operation, the minimum output load could not be less than 10% of
the full 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 products with a lower rated output power.
2. Overload Protection
Under normal 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.
U
3. 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). 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. For every channel of output, provided the safe and
reliable operation is ensured, the recommended capacitance of its filter capacitor sees (Table 1).
External Capacitor Table (Table 1)
+Vo
Vin
DC DC
Cin
(µF)
Cout
Vout
(Vdc)
0V
Cout
(μF)
5
4.7
5
10
12
2.2
9.0
4.7
15
2.2
12
2.2
15, 24
1.0
TI
GND
Cin
Vin
(Vdc)
N
Figure 1
24
1.0
Figure 2
N
4. 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).
Vin
REG
+Vo
DC DC
O
GND
REG
0V
D
IS
C
5. No parallel connection or plug and play
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CUI Inc │ SERIES: VFSD1-SIP │ DESCRIPTION: DC-DC CONVERTER
date 01/28/2013 │ page 6 of 6
REVISION HISTORY
description
date
10/04/2007
1.0
initial release
1.01
updated drawings and data
1.02
V-Infinity branding removed
1.03
added 2 models to datasheet
ED
rev.
05/31/2012
09/05/2012
01/28/2013
D
IS
C
O
N
TI
N
U
The revision history provided is for informational purposes only and is believed to be accurate.
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