Datasheet

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date
07/11/2013
page
1 of 5
SERIES: VESD1-DIP │ DESCRIPTION: DC-DC CONVERTER
FEATURES
•
•
•
•
•
•
•
•
1 W isolated output
industry standard 7 pin DIP package
dual unregulated outputs
3,000 V isolation
short circuit protection
UL safety approvals (some models)
wide temperature (-40~85°C)
efficiency up to 81%
RoHS
input
voltage
MODEL
output
voltage
output
current
output
power
ripple
and noise1
efficiency
UL 60950
typ
(Vdc)
range
(Vdc)
(Vdc)
min
(mA)
max
(mA)
max
(W)
max
(mVp-p)
typ
(%)
VESD1-S5-D5-DIP
5
4.5 ~ 5.5
±5
±10
±100
1
150
72
YES
VESD1-S5-D9-DIP
5
4.5 ~ 5.5
±9
±6
±56
1
150
75
YES
VESD1-S5-D12-DIP
5
4.5 ~ 5.5
±12
±5
±42
1
150
78
YES
VESD1-S5-D15-DIP
5
4.5 ~ 5.5
±15
±4
±33
1
150
79
YES
VESD1-S12-D5-DIP
12
10.8 ~ 13.2
±5
±10
±100
1
150
74
YES
VESD1-S12-D9-DIP
12
10.8 ~ 13.2
±9
±6
±56
1
150
76
YES
VESD1-S12-D12-DIP
12
10.8 ~ 13.2
±12
±5
±42
1
150
79
YES
VESD1-S12-D15-DIP
12
10.8 ~ 13.2
±15
±4
±33
1
150
80
YES
VESD1-S15-D5-DIP
15
13.5 ~ 16.5
±5
±10
±100
1
150
74
NO
VESD1-S15-D9-DIP
15
13.5 ~ 16.5
±9
±6
±56
1
150
75
NO
VESD1-S15-D12-DIP
15
13.5 ~ 16.5
±12
±5
±42
1
150
79
NO
VESD1-S15-D15-DIP
15
13.5 ~ 16.5
±15
±4
±33
1
150
79
NO
VESD1-S24-D5-DIP
24
21.6 ~ 26.4
±5
±10
±100
1
150
74
YES
VESD1-S24-D9-DIP
24
21.6 ~ 26.4
±9
±6
±56
1
150
76
YES
VESD1-S24-D12-DIP
24
21.6 ~ 26.4
±12
±5
±42
1
150
80
YES
VESD1-S24-D15-DIP
24
21.6 ~ 26.4
±15
±4
±33
1
150
81
YES
Notes:
1. ripple and noise are measured at 20 MHz BW
VESD1-S XX -D XX -DIP
Base Number
Input Voltage
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Output Voltage
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CUI Inc │ SERIES: VESD1-DIP │ DESCRIPTION: DC-DC CONVERTER
date 07/11/2013 │ page 2 of 5
INPUT
parameter
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
parameter
conditions/description
min
typ
max
units
line regulation
for Vin change of 1%
1.2
%
load regulation
measured from 10% to full load
15
%
voltage accuracy
see tolerance envelope graph
switching frequency
100% load, input voltage range
OUTPUT
10
83
100
temperature coefficient
200
kHz
±0.03
%/°C
max
units
1
s
max
units
PROTECTIONS
parameter
conditions/description
min
typ
short circuit protection
SAFETY AND COMPLIANCE
parameter
conditions/description
isolation voltage
tested for 1 minute
3,000
min
Vdc
insulation resistance
at 500 Vdc
1,000
MΩ
safety approvals
UL60950-1 (E222736)
RoHS compliant
yes
3,500,000
hours
MTBF
typ
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
15
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CUI Inc │ SERIES: VESD1-DIP │ DESCRIPTION: DC-DC CONVERTER
date 07/11/2013 │ page 3 of 5
DERATING CURVES
Load (%)
100
80
60
40
20
-40
-20
0
20
40
60
85
100
120
Ambient Temperature (°C)
MECHANICAL
parameter
conditions/description
dimensions
20.40 x 10.00 x 7.0 (0.803 x 0.394 x 0.276 inch)
min
case material
plastic UL94-V0
typ
max
mm
weight
2.1
g
MECHANICAL DRAWING
units: mm
tolerance: ±0.25
pin section tolerance: ±0.10 mm
Layout
Side View
1.00ø +0.15/-0
2.54
2.54
20.40
14
7.00
10
9 8
1
7
4.10
PIN CONNECTIONS
Bottom View
1
7
10.00 7.62
14
10
9 8
15.24
cui.com
units
1
-Vin
7
NC
8
COM
9
+Vout
11
-Vout
14
+Vin
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CUI Inc │ SERIES: VESD1-DIP │ DESCRIPTION: DC-DC CONVERTER
date 07/11/2013 │ page 4 of 5
APPLICATION NOTES
1.
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.
Table 1
2.
Input Voltage
External Input
Capacitance
5V
4.7 μF
12 V
2.2 μF
15 V
2.2 μF
24 V
1.0 μF
L
L
+Vout
+Vin
DC DC
C
-Vin
C
COM
L
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.
Output Voltage
Table 2
External Input
Capacitance
5V
4.7 μF
+Vout
REG
DC DC
COM
-Vin
-Vout
9V
2.2 μF
12 V
1.0 μF
15 V
0.47 μF
24 V
+Vin
+Vin
REG
+Vout
REG
-Vout
DC DC
-Vin
0.33 μF
COM
Figure 2
3.
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.
6.
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.
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: VESD1-DIP │ DESCRIPTION: DC-DC CONVERTER
date 07/11/2013 │ page 5 of 5
REVISION HISTORY
rev.
description
date
1.0
initial release
10/06/2009
1.01
template update
12/09/2010
1.02
new template applied, V-Infinity branding removed
09/07/2012
updated spec
07/11/2013
1.03
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
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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.