Datasheet

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date
09/06/2012
page
1 of 5
SERIES: VBSD2-DIP │ DESCRIPTION: DC-DC CONVERTER
2 W isolated output
industry standard 14 pin DIP package
single unregulated outputs
1,000 V isolation
short circuit protection
wide temperature (-40~85°C)
efficiency up to 85%
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•
•
•
•
•
•
ED
FEATURES
input
voltage
MODEL
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
(%)
40
400
2
150
81
TI
VBSD2-S5-S5-DIP
output
voltage
N
RoHS
VBSD2-S5-S9-DIP
5
4.5~5.5
9
23
222
2
150
82
VBSD2-S5-S12-DIP
5
4.5~5.5
12
17
167
2
150
84
5
4.5~5.5
15
14
133
2
150
84
12
10.8~13.2
5
40
400
2
150
82
N
VBSD2-S5-S15-DIP
VBSD2-S12-S5-DIP
VBSD2-S12-S9-DIP
12
10.8~13.2
9
23
222
2
150
83
VBSD2-S12-S12-DIP
12
10.8~13.2
12
17
167
2
150
85
12
10.8~13.2
15
14
133
2
150
85
24
21.6~26.4
5
40
400
2
150
83
VBSD2-S24-S9-DIP
VBSD2-S24-S12-DIP
VBSD2-S24-S15-DIP
24
21.6~26.4
9
23
222
2
150
84
24
21.6~26.4
12
17
167
2
150
86
24
21.6~26.4
15
14
133
2
150
86
24
21.6~26.4
24
10
84
2
150
86
IS
C
VBSD2-S24-S24-DIP
O
VBSD2-S12-S15-DIP
VBSD2-S24-S5-DIP
Notes:
1. ripple and noise are measured at 20 MHz BW
D
PART NUMBER KEY
Base Number
VBSD2 - SXX - SXX -DIP
Input Voltage
Output Voltage
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Packaging Style
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CUI Inc │ SERIES: VBSD2-DIP │ DESCRIPTION: DC-DC CONVERTER
date 09/06/2012 │ 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
input filter
C filter
max
units
5 V model
12 V model
24 V model
-0.7
-0.7
-0.7
OUTPUT
line regulation
for Vin change of 1%
min
5 V model
9 V model
12 V model
15 V model
load regulation
measured from 10%
load to full load
voltage accuracy
see derating curves
switching frequency
100% load, input voltage range
PROTECTIONS
parameter
conditions/description
short circuit protection
min
N
SAFETY AND COMPLIANCE
12.8
8.3
6.8
6.3
TI
temperature coefficient
typ
U
conditions/description
N
parameter
ED
parameter
%
15
15
15
15
%
%
%
%
75
kHz
±0.03
%/°C
typ
units
1
s
max
units
isolation voltage
for 1 minute at 1 mA max.
1,000
Vdc
isolation resistance
at 500 Vdc
1,000
MΩ
safety approvals
UL
3,500,000
hours
O
conditions/description
RoHS compliant
typ
max
parameter
MTBF
min
1.2
yes
IS
C
ENVIRONMENTAL
parameter
conditions/description
min
operating temperature
storage temperature
storage humidity
non-condensing
temperature rise
at full load
lead temperature
1.5 mm from case for 10 seconds
max
units
-40
typ
85
°C
-55
125
°C
95
%
25
°C
300
°C
D
15
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CUI Inc │ SERIES: VBSD2-DIP │ DESCRIPTION: DC-DC CONVERTER
date 09/06/2012 │ page 3 of 5
DERATING CURVES
2. output voltage vs. output current
+10%
Output Voltate (%)
Load (%)
100
80
60
40
20
-20
0
20
40
60
85
105 120
Voltage
N
parameter
conditions/description
dimensions
0.803 x 0.323 x 0.402 (20.40 x 8.20 x 10.20 mm)
case material
plastic (UL94-V0)
TI
min
typ
2.8
g
O
IS
C
PIN CONNECTIONS
PIN
FUNCTION
1
-Vin
7
NC
8
-Vout
9
+Vout
14
+Vin
Bottom View
7
9 8
cui.com
units
inch
Side View
1
14
100%
max
N
MECHANICAL DRAWING
D
50%
Output Current (%)
MECHANICAL
units: mm
tolerance: ±0.25
pin section tolerance: ±0.10 mm
-2.5%
-7.5%
10%
Ambient Temperature (°C)
weight
+2.5%
U
-40
+5%
Nominal
ED
1. output power vs. ambient temperature
14
9 8
1
7
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CUI Inc │ SERIES: VBSD2-DIP │ DESCRIPTION: DC-DC CONVERTER
date 09/06/2012 │ page 4 of 5
APPLICATION NOTES
3.3, 5 V
4.7 μF
12 V
2.2 μF
15 V
2.2 μF
24 V
1.0 μF
L
+Vin
C
-Vin
L
DC DC
+Vout
C
-Vout
Figure 1
Output filtering
An output capacitor is needed to meet output ripple requirements as shown in Table 2. Output capacitance may be increased for additional filtering, but should not exeed 10μF or expanded to an LC network as in Figure 1.
Table 2
Output Voltage
External Input
Capacitance
3.3, 5 V
4.7 μF
9V
2.2 μF
12 V
15 V
+Vin
+Vout
REG
DC DC
-Vin
1.0 μF
-Vout
REG
+Vin
0.47 μF
0.33 μF
-Vin
+Vout
DC DC
-Vout
Figure 2
N
24 V
N
2.
External Input
Capacitance
U
Table 1
Input Voltage
ED
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.
TI
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.
4.
Regulation
With a semi-regulated design, the converter’s output voltage varies with load current and will change proportionally to the input voltage. If regulated output is needed, an external regulator can be used as shown in Figure 2.
5.
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.
IS
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3.
Dual outputs used as a single output
The +Vout and -Vout can be used to obtain a single output that is the sum of the two outputs. In this case, the COM pin shouldn’t be
used.
7.
External Regulator
An external 3-terminal regulator can be connected to the output of the converter to achieve full regulation. Make sure the converter’s
output voltage provides sufficient head room for the regulator. An additional benefit is that the built-in protection features in the regulator, such as OCP, OTP, etc, will protect the converter also. In a complimentory supply, a negative output regulator must be used to
achieve the negative regulated output.
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6.
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CUI Inc │ SERIES: VBSD2-DIP │ DESCRIPTION: DC-DC CONVERTER
date 09/06/2012 │ page 5 of 5
REVISION HISTORY
description
date
1.0
initial release
06/20/2006
1.01
new template applied, V-Infinity branding removed
ED
rev.
09/06/2012
D
IS
C
O
N
TI
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The revision history provided is for informational purposes only and is believed to be accurate.
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800.275.4899
Fax 503.612.2383
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