Datasheet

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date
09/04/2012
page
1 of 5
SERIES: VASD2-SIP │ DESCRIPTION: DC-DC CONVERTER
2 W isolated output
industry standard 7 pin SIP package
dual unregulated outputs
1,000 V isolation
short circuit protection
wide temperature (-40~85°C)
efficiency up to 86%
U
•
•
•
•
•
•
•
ED
FEATURES
input
voltage
MODEL
typ
(Vdc)
range
(Vdc)
(Vdc)
5
4.5~5.5
output
current
output
power
ripple
and noise1
efficiency
min
(mA)
max
(mA)
max
(W)
max
(mVp-p)
typ
(%)
±5
±20
±200
2
150
82
TI
VASD2-S5-D5-SIP
output
voltage
N
RoHS
VASD2-S5-D9-SIP
5
4.5~5.5
±9
±12
±111
2
150
85
VASD2-S5-D12-SIP
5
4.5~5.5
±12
±9
±83
2
150
86
5
4.5~5.5
±15
±7
±67
2
150
82
12
10.8~13.2
±5
±20
±200
2
150
81
N
VASD2-S5-D15-SIP
VASD2-S12-D5-SIP
VASD2-S12-D9-SIP
12
10.8~13.2
±9
±12
±111
2
150
84
VASD2-S12-D12-SIP
12
10.8~13.2
±12
±9
±83
2
150
86
12
10.8~13.2
±15
±7
±67
2
150
82
24
21.6~26.4
±5
±20
±200
2
150
80
VASD2-S24-D9-SIP
VASD2-S24-D12-SIP
VASD2-S24-D15-SIP
24
21.6~26.4
±9
±12
±111
2
150
84
24
21.6~26.4
±12
±9
±83
2
150
84
24
21.6~26.4
±15
±7
±67
2
150
84
1. ripple and noise are measured at 20 MHz BW
IS
C
Notes:
O
VASD2-S12-D15-SIP
VASD2-S24-D5-SIP
D
PART NUMBER KEY
Base Number
VASD2 - SXX - DXX -SIP
Input Voltage
Output Voltage
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Packaging Style
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CUI Inc │ SERIES: VASD2-SIP │ DESCRIPTION: DC-DC CONVERTER
date 09/04/2012 │ page 2 of 5
INPUT
conditions/description
min
typ
max
units
operating input voltage
5 V model
12 V model
24 V model
4.5
10.8
21.6
5
12
24
5.5
13.2
26.4
Vdc
Vdc
Vdc
surge voltage
1 second max.
9
18
30
Vdc
Vdc
Vdc
0.4
A
max
units
1.2
%
15
15
15
15
%
%
%
%
5 V model
12 V model
24 V model
-0.7
-0.7
-0.7
reverse polarity input current1
input filter
C filter
OUTPUT
for Vin change of 1%
load regulation
measured from 10%
load to full load
min
5 V model
9 V model
12 V model
15 V model
see derating curves
switching frequency
100% load, input voltage range
temperature coefficient
PROTECTIONS
parameter
TI
voltage accuracy
conditions/description
short circuit protection
min
N
SAFETY AND COMPLIANCE
typ
U
conditions/description
line regulation
N
parameter
ED
parameter
75
kHz
±0.03
%/°C
typ
units
1
s
max
units
for 1 minute at 1 mA max.
1,000
Vdc
isolation resistance
at 500 Vdc
1,000
MΩ
3,500,000
hours
UL
yes
IS
C
RoHS compliant
O
conditions/description
isolation voltage
MTBF
typ
max
parameter
safety approvals
min
12.8
8.3
6.8
6.3
ENVIRONMENTAL
parameter
conditions/description
min
typ
max
units
operating temperature
-40
85
°C
storage temperature
-55
125
°C
storage humidity
non-condensing
temperature rise
at full load
95
lead temperature
1.5 mm from case for 10 seconds
D
25
cui.com
%
°C
300
°C
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CUI Inc │ SERIES: VASD2-SIP │ DESCRIPTION: DC-DC CONVERTER
date 09/04/2012 │ 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
20
-20
0
20
40
60
85
105 120
-2.5%
-7.5%
50%
10%
MECHANICAL
parameter
conditions/description
dimensions
0.772 x 0.276 x 0.394 (19.60 x 7.00 x 10.00 mm)
case material
plastic (UL94-V0)
min
TI
weight
MECHANICAL DRAWING
N
units: mm [inches]
tolerance: ±0.25 [±0.010]
pin section tolerance: ±0.10 mm [±0.004]
>@
O
(Top View)
IS
C
>@
>@
>@
2.8
PIN CONNECTIONS
>@
(Bottom View)
>@
>@
>@
cui.com
PIN
FUNCTION
1
+Vin
2
GND
4
-Vo
5
0V
6
+Vo
max
units
inch
>@
>@
typ
>@
>@
>@
>@
(Front View)
>@
100%
Output Current (%)
N
Ambient Temperature (°C)
D
+2.5%
Voltage
U
-40
+5%
Nominal
g
∅0>@
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CUI Inc │ SERIES: VASD2-SIP │ DESCRIPTION: DC-DC CONVERTER
date 09/04/2012 │ page 4 of 5
APPLICATION NOTES
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.
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).
Vin
Figure 2
Vin
REG
GND
0V
-Vo
REG
+Vo
REG
-Vo
0V
DC DC
O
External Capacitor Table
It is not recommended to connect any external capacitor in the application field with less than 0.5 W output.
Table 1
Vin
(Vdc)
Cout
(μF)
Vout
(Vdc)
Cout
(μF)
5
4.7
±5
4.7
12
2.2
±9
2.2
24
1
±12
1
--
--
±15
0.47
D
IS
C
5.
Cout
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).
N
4.
DC DC
Cin
C out
TI
GND
+Vo
N
Figure 1
U
ED
1.
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CUI Inc │ SERIES: VASD2-SIP │ DESCRIPTION: DC-DC CONVERTER
date 09/04/2012 │ page 5 of 5
REVISION HISTORY
description
date
08/30/2007
1.0
initial release
1.01
new template applied
1.02
V-Infinity branding removed
ED
rev.
04/13/2012
09/04/2012
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]
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.
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