データシート

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date
09/08/2015
page
1 of 5
SERIES: VBSD0.25-DIP │ DESCRIPTION: DC-DC CONVERTER
0.25 W isolated output
industry standard 7 pin DIP package
single unregulated outputs
-40~85°C temperature range
1,000 Vdc isolation
no heatsink required
U
•
•
•
•
•
•
ED
FEATURES
MODEL
N
RoHS
output
voltage
output
current
output
power
ripple
and noise
efficiency
range
(Vdc)
(Vdc)
max
(mA)
max
(W)
max
(mVp-p)
typ
(%)
3.0 ~ 3.6
5
50
0.25
100
64
4.5 ~ 5.5
5
50
0.25
100
64
4.5 ~ 5.5
9
28
0.25
100
65
4.5 ~ 5.5
12
21
0.25
100
67
4.5 ~ 5.5
15
17
0.25
100
65
12
10.8 ~ 13.2
3.3
76
0.25
100
64
12
10.8 ~ 13.2
5
50
0.25
100
65
12
10.8 ~ 13.2
9
28
0.25
100
66
12
10.8 ~ 13.2
12
21
0.25
100
67
12
10.8 ~ 13.2
15
17
0.25
100
66
24
21.6 ~ 26.4
5
50
0.25
100
63
24
21.6 ~ 26.4
9
28
0.25
100
63
24
21.6 ~ 26.4
12
21
0.25
100
65
VBSD0.25-S24-S15-DIP
24
21.6 ~ 26.4
15
17
0.25
100
66
VBSD0.25-S24-S24-DIP
24
21.6 ~ 26.4
24
10.4
0.25
100
66
typ
(Vdc)
VBSD0.25-S3.3-S5-DIP
3.3
5
VBSD0.25-S5-S9-DIP
5
VBSD0.25-S5-S12-DIP
5
VBSD0.25-S5-S15-DIP
5
VBSD0.25-S12-S3.3-DIP
VBSD0.25-S12-S5-DIP
VBSD0.25-S12-S12-DIP
VBSD0.25-S12-S15-DIP
VBSD0.25-S24-S5-DIP
VBSD0.25-S24-S9-DIP
IS
C
VBSD0.25-S24-S12-DIP
O
VBSD0.25-S12-S9-DIP
N
VBSD0.25-S5-S5-DIP
Notes:
TI
input
voltage
1. All specifications measured at TA=25°C, humidity <75%, nominal input voltage and rated output load unless otherwise specified
D
PART NUMBER KEY
VBSD0.25-S XX - S XX -DIP
Base Number
Input Voltage
cui.com
Output Voltage
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CUI Inc │ SERIES: VBSD0.25-DIP │ DESCRIPTION: DC-DC CONVERTER
date 09/08/2015 │ page 2 of 5
INPUT
conditions/description
min
typ
max
units
operating input voltage
3.3 V model
5 V model
12 V model
24 V model
2.97
4.5
10.8
21.6
3.3
5
12
24
3.63
5.5
13.2
26.4
Vdc
Vdc
Vdc
Vdc
parameter
conditions/description
min
typ
max
units
line regulation
for Vin change of 1%
3.3 V model
all other models
±1.5
±1.2
%
%
load regulation
measured from 10% to full load
3.3 V model
5 V model
9 V model
12 V model
15 V model
20
15
15
15
15
%
%
%
%
%
voltage accuracy
see tolerance envelope graph
switching frequency
100% load, input voltage range
±0.03
%/°C
max
units
1
s
max
units
PROTECTIONS
parameter
N
15
10.5
8.3
6.8
6.3
TI
temperature coefficient
U
OUTPUT
conditions/description
short circuit protection
min
N
SAFETY AND COMPLIANCE
ED
parameter
typ
parameter
conditions/description
tested for 1 minute
1,000
Vdc
insulation resistance
at 500 Vdc
1,000
MΩ
RoHS compliant
yes
3,500,000
hours
O
typ
kHz
isolation voltage
MTBF
min
110
ENVIRONMENTAL
conditions/description
min
IS
C
parameter
typ
max
units
case operating temperature
-40
85
°C
storage temperature
-55
125
°C
storage humidity
non-condensing
temperature rise
100% load
lead temperature
1.5 mm from the case for 10 seconds
D
15
cui.com
95
%
25
°C
300
°C
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CUI Inc │ SERIES: VBSD0.25-DIP │ DESCRIPTION: DC-DC CONVERTER
date 09/08/2015 │ page 3 of 5
Load (%)
100
80
60
40
20
-40
-20
0
20
40
60
85
105
U
Ambient Temperature (°C)
MECHANICAL
conditions/description
0.500 x 0.394 x 0.303 (12.70 x 10.00 x 7.70 mm)
case material
plastic UL94-V0
typ
max
2.1
g
O
N
units: mm (inches)
tolerance: ±0.25 (±0.010)
pin section tolerance: ±0.10 (±0.004)
IS
C
Side view
7
5
1
4
Bottom view
1
7
PIN CONNECTIONS
4
5
cui.com
units
inch
TI
MECHANICAL DRAWING
D
min
N
parameter
dimensions
weight
ED
DERATING CURVES
1
GND
4
Vin
5
+Vo
7
0V
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CUI Inc │ SERIES: VBSD0.25-DIP │ DESCRIPTION: DC-DC CONVERTER
date 09/08/2015 │ page 4 of 5
APPLICATION NOTES
ED
1. Requirement on Output Load
In order to ensure the product operates efficiently and reliably, make sure the specified range of input voltage is not exceeded and the
minimum output load is not less than 10% load. If the actual load is less than the specified minimum load, the output ripple may
increase sharply while its efficiency and reliability will reduce greatly. If the actual output power is very small, please add an
appropriate resistor as extra loading.
2. 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.
U
3. Filtering
In some circuits which are sensitive to noise and ripple, a filtering capacitor may be added to the DC/DC output end and input end to
reduce the noise and ripple. 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 greatest
capacitance of its filter capacitor sees the external capacitor table. To get an extremely low ripple, an “LC” filtering network may be
connected to the input and output ends of the DC/DC converter, which may produce a more significant filtering effect. 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 (Figure 1).
Figure 1
DC DC
Cin
+Vo
Cout
TI
GND
L
N
L
Vin
0V
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).
Vi n
O
Figure 2
REG
+Vout
DC DC
0V
D
IS
C
GND
R EG
cui.com
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CUI Inc │ SERIES: VBSD0.25-DIP │ DESCRIPTION: DC-DC CONVERTER
date 09/08/2015 │ page 5 of 5
REVISION HISTORY
description
date
04/30/2008
1.0
initial release
1.01
new template applied, V-Infinity branding removed
1.02
updated datasheet
ED
rev.
08/31/2012
09/08/2015
D
IS
C
O
N
TI
N
U
The revision history provided is for informational purposes only and is believed to be accurate.
Headquarters
20050 SW 112th Ave.
Tualatin, OR 97062
800.275.4899
Fax 503.612.2383
cui.com
[email protected]
CUI offers a two (2) year limited warranty. Complete warranty information is listed on our website.
CUI reserves the right to make changes to the product at any time without notice. Information provided by CUI is believed to be accurate and reliable. However, no responsibility is
assumed by CUI for its use, nor for any infringements of patents or other rights of third parties which may result from its use.
CUI products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability. A critical
component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to
affect its safety or effectiveness.