Datasheet

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date
01/13/2014
page
1 of 5
SERIES: VASD1-DIP │ DESCRIPTION: DC-DC CONVERTER
1 W isolated output
industry standard 14 pin DIP package
dual unregulated outputs
1,000 V isolation
short circuit protection
UL safety approvals
wide temperature (-40~85°C)
efficiency up to 80%
U
•
•
•
•
•
•
•
•
ED
FEATURES
MODEL
input
voltage
typ
(Vdc)
range
(Vdc)
(Vdc)
5
4.5~5.5
±5
output
current
output
power
ripple
and noise1
efficiency
min
(mA)
max
(mA)
max
(W)
max
(mVp-p)
typ
(%)
±10
±100
1
75
72
TI
VASD1-S5-D5-DIP
output
voltage
N
RoHS
VASD1-S5-D9-DIP
5
4.5~5.5
±9
±6
±56
1
75
77
VASD1-S5-D12-DIP
5
4.5~5.5
±12
±5
±42
1
75
78
5
4.5~5.5
±15
±4
±33
1
75
80
VASD1-S12-D5-DIP
12
10.8~13.2
±5
±10
±100
1
75
72
VASD1-S12-D9-DIP
12
10.8~13.2
±9
±6
±56
1
75
78
VASD1-S12-D12-DIP
12
10.8~13.2
±12
±5
±42
1
75
79
VASD1-S12-D15-DIP
12
10.8~13.2
±15
±4
±33
1
75
78
VASD1-S15-D5-DIP
15
13.5~16.5
±5
±10
±100
1
75
72
24
21.6~26.4
±5
±10
±100
1
150
73
24
21.6~26.4
±9
±6
±56
1
150
79
24
21.6~26.4
±12
±5
±42
1
150
80
24
21.6~26.4
±15
±4
±33
1
150
80
VASD1-S24-D9-DIP
VASD1-S24-D12-DIP
IS
C
VASD1-S24-D15-DIP
O
VASD1-S24-D5-DIP
N
VASD1-S5-D15-DIP
Notes:
1. ripple and noise are measured at 20 MHz BW
D
PART NUMBER KEY
Base Number
VASD1 - SXX - DXX -DIP
Input Voltage
Output Voltage
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Packaging Style
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CUI Inc │ SERIES: VASD1-DIP │ DESCRIPTION: DC-DC CONVERTER
date 01/13/2014 │ page 2 of 5
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
min
typ
max
units
1.2
%
15
15
15
15
%
%
%
%
OUTPUT
load regulation
measured from 10% load to full load
5 V model
9 V model
12 V model
15 V model
voltage accuracy
see derating curves
switching frequency
100% load, input voltage range
temperature coefficient
PROTECTIONS
conditions/description
short circuit protection
SAFETY AND COMPLIANCE
conditions/description
isolation voltage
for 1 minute at 1 mA max.
isolation resistance
at 500 Vdc
safety approvals
UL 60950-1 (E222736)
MTBF
100
kHz
±0.03
%/°C
typ
typ
max
units
1
s
max
units
1,000
Vdc
1,000
MΩ
3,500,000
hours
full load at 85°C, 4 hours at no load and 4 hours at full load
O
RoHS compliant
min
N
parameter
burn-in
min
TI
parameter
10.5
8.3
6.8
6.3
U
conditions/description
for Vin change of 1%
N
parameter
line regulation
ED
parameter
yes
ENVIRONMENTAL
conditions/description
min
IS
C
parameter
typ
max
units
operating temperature
-40
85
°C
storage temperature
-55
125
°C
storage humidity
non-condensing
temperature rise
at full load
lead temperature
1.5 mm from case for 10 seconds
D
15
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95
%
25
°C
300
°C
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CUI Inc │ SERIES: VASD1-DIP │ DESCRIPTION: DC-DC CONVERTER
date 01/13/2014 │ page 3 of 5
DERATING CURVES
2. output voltage vs. output current
ED
1. output power vs. ambient temperature
+10%
Output Voltate (%)
Load (%)
100
80
60
40
-40
-20
0
20
40
60
85
+2.5%
Voltage
-2.5%
-7.5%
U
20
+5%
Nominal
105 120
50%
10%
MECHANICAL
parameter
conditions/description
dimensions
20.00 x 7.00 x 10.00 (0.787 x 0.276 x 0.394 inch)
case material
plastic (UL94-V0)
min
TI
weight
MECHANICAL DRAWING
typ
O
IS
C
1
1
2.1
11
9 8
7
PIN CONNECTIONS
7
9 8
D
11
14
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PIN
FUNCTION
1
GND
7
ND
8
0V
9
+Vo
11
-Vo
14
Vin
max
units
mm
N
units: mm [inches]
tolerance: ±0.25 [±0.010]
pin section tolerance: ±0.10 mm [±0.004]
14
100%
Output Current (%)
N
Ambient Temperature (°C)
g
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CUI Inc │ SERIES: VASD1-DIP │ DESCRIPTION: DC-DC CONVERTER
date 01/13/2014 │ 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.
TI
N
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).
L
L
+Vo
Vin
Cout
Figure 1
0V
Cin
DC DC
L Cout
GND
-Vo
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).
R EG
N
Vi n
Figure 2
GND
REG
DC DC
+Vout
0V
REG
-Vout
O
5. External Capacitor Table
It is not recommended to connect any external capacitor in the application field with less than 0.5 W output.
Vin
(Vdc)
Vout
(Vdc)
Cout
(µF)
5
4.7
±5
4.7
12
2.2
±9
2.2
15
2.2
±12
1
24
1
±15
0.47
D
IS
C
Table 1
Cin
(µF)
Note:
All specifications measured at 25°C, humidity <75%, nominal input voltage, and full load unless otherwise noted.
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CUI Inc │ SERIES: VASD1-DIP │ DESCRIPTION: DC-DC CONVERTER
date 01/13/2014 │ page 5 of 5
REVISION HISTORY
description
date
09/01/2009
1.0
initial release
1.01
new template applied
1.02
V-Infinity branding removed
1.03
updated spec
ED
rev.
03/09/2012
09/04/2012
01/13/2014
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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20050 SW 112th Ave.
Tualatin, OR 97062
800.275.4899
Fax 503.612.2383
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[email protected]
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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.
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