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01/13/2014
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SERIES:
VHD1-DIP
│
DESCRIPTION:
DC-DC CONVERTER
FEATURES
• 1 W isolated output
• industry standard 17 pin DIP package
• single unregulated outputs
• 6,000 V isolation
• short circuit protection
• UL safety approvals
• wide temperature (-40~85°C)
• efficiency up to 75%
RoHS
MODEL
typ
(Vdc)
input
voltage
range
(Vdc)
output
voltage
(Vdc)
min
(mA)
output
current
max
(mA)
output
power
max
(W)
ripple
and noise
1
max
(mVp-p)
efficiency
typ
(%)
VHD1-S5-S5-DIP
VHD1-S5-S9-DIP
VHD1-S5-S12-DIP
VHD1-S5-S15-DIP
VHD1-S12-S5-DIP
VHD1-S12-S9-DIP
VHD1-S12-S12-DIP
VHD1-S12-S15-DIP
Notes:
5
5
5
5
12
12
12
12
4.5~5.5
4.5~5.5
4.5~5.5
4.5~5.5
10.8~13.2
10.8~13.2
10.8~13.2
10.8~13.2
5
9
12
15
5
9
12
15
20
12
9
7
20
12
9
7
200
111
84
67
200
111
84
67
1
1
1
1
1
1
1
1
150
150
150
150
150
150
150
150
68
72
74
74
69
72
74
75
1. ripple and noise are measured at 20 MHz BW
PART NUMBER KEY
VHD1 - SXX - SXX -DIP
Base Number
Input Voltage
Output Voltage
Packaging Style
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DESCRIPTION:
DC-DC CONVERTER
date
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INPUT
parameter
operating input voltage
conditions/description
5 V model
12 V model
min
4.5
10.8
typ
5
12
max
5.5
13.2
units
Vdc
Vdc
OUTPUT
parameter
line regulation
load regulation
voltage accuracy
switching frequency
temperature coefficient
conditions/description
for Vin change of 1%
measured from 10% load to full load
see derating curves
100% load, input voltage range
250
±0.03
kHz
%/°C
10
min
typ
max
±1.2
15
units
%
%
PROTECTIONS
parameter
short circuit protection
conditions/description
min
typ
max
1
units
s
SAFETY AND COMPLIANCE
parameter
isolation voltage
isolation resistance
safety approvals
MTBF
RoHS compliant
yes
conditions/description
for 1 minute at 1 mA max.
at 500 Vdc
UL 60950 (E222736)
3,500,000
hours
min
6,000
1,000
typ
max
units
Vdc
MΩ
ENVIRONMENTAL
parameter
operating temperature
storage temperature
storage humidity
temperature rise
lead temperature
non-condensing
at full load
1.5 mm from case for 10 seconds
15
conditions/description
min
-40
-55
typ
max
85
125
95
25
300
units
°C
°C
%
°C
°C
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DESCRIPTION:
DC-DC CONVERTER
date
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DERATING CURVES
1. output power vs. ambient temperature
2. output voltage vs. output current
100
80
60
40
20
Load (%)
-40
-20
0
20
40
60 71
85
100
120
Ambient Temperature (°C)
MECHANICAL
parameter
dimensions
case material
weight
conditions/description
32.30 x 14.70 x 9.40 (0.768 x 0.396 x 0.492 inch)
plastic (UL94-V0)
4.2
g
min
typ
max
units
mm
MECHANICAL DRAWING
units: mm
tolerance: ±0.25
pin section tolerance: ±0.10 mm
Side View
9.40
0.65
4.00
27.94
24 23
Layout
17 16 15 14 13
1.00
+ 0.15 / - 0
2.54
1 2
8 9 10 1112
2.54
PIN CONNECTIONS
Top View
32.30
24 23
17 16 15 14
13
PIN
1
2
8
10
12
13
15
17
FUNCTION
+Vin
-Vin
NC
-Vout
+Vout
+Vout
-Vout
NC
14.70
1 2
8
9 10 11 1 2
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DESCRIPTION:
DC-DC CONVERTER
date
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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.
External Input
Capacitance
4.7 μF
2.2 μF
1.0 μF
Input Voltage
Table 1
5V
12 V
24 V
+Vin
-Vin
L
C
L
+Vout
C
DC DC
<Figure 1>
-Vout
Figure 1
2.
Output filtering
An output capacitor is needed to meet output ripple requirements as shown in Table 2. Output capacitance may be increased for ad-
ditional filtering, but should not exeed 10μF or expanded to an LC network as in Figure 1.
Output Voltage
5V
Table 2
9V
12 V
15 V
External Input
Capacitance
4.7 μF
2.2 μF
1.0 μF
0.47 μF
+Vin
-Vin
+Vin
-Vin
REG
DC DC
REG
+Vout
-Vout
+Vout
-Vout
DC DC
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 im-
mediate damages but may reduce reliability, and cause performance not to meet specifications.
Regulation
With a semi-regulated design, the converter’s output voltage varies with load current and will change proportionally to the input volt-
age. If regulated output is needed, an external regulator can be used as shown in Figure 2.
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.
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.
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 regu-
lator, 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.
4.
5.
6.
7.
Note:
All specifications measured at 25°C, humidity <75%, nominal input voltage, and full load unless otherwise noted.
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VHD1-DIP
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DESCRIPTION:
DC-DC CONVERTER
date
01/13/2014
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REVISION HISTORY
rev.
1.0
1.01
1.02
description
initial release
new template applied, V-Infinity branding removed
updated spec
date
05/12/2006
09/07/2012
01/13/2014
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
CUI offers a two (2) year limited warranty. Complete warranty information is listed on our website.
Fax 503.612.2383
cui.com
techsupport@cui.com
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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