Datasheet

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date
09/10/2012
page
1 of 5
SERIES: VHD2-DIP │ DESCRIPTION: DC-DC CONVERTER
FEATURES
•
•
•
•
•
•
•
•
2 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 82%
RoHS
MODEL
input
voltage
output
voltage
output
current
output
power
ripple
and noise1
efficiency
typ
(Vdc)
range
(Vdc)
(Vdc)
min
(mA)
max
(mA)
max
(W)
max
(mVp-p)
typ
(%)
VHD2-S5-S5-DIP
5
4.5~5.5
5
40
400
2
200
78
VHD2-S5-S9-DIP
5
4.5~5.5
9
23
222
2
200
79
VHD2-S5-S12-DIP
5
4.5~5.5
12
17
167
2
200
80
VHD2-S5-S15-DIP
5
4.5~5.5
15
14
133
2
200
80
VHD2-S12-S5-DIP
12
10.8~13.2
5
40
400
2
200
79
VHD2-S12-S9-DIP
12
10.8~13.2
9
23
222
2
200
80
VHD2-S12-S12-DIP
12
10.8~13.2
12
17
167
2
200
82
VHD2-S12-S15-DIP
12
10.8~13.2
15
14
133
2
200
82
Notes:
1. ripple and noise are measured at 20 MHz BW
PART NUMBER KEY
VHD2 - SXX - SXX -DIP
Base Number
Input Voltage
Output Voltage
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CUI Inc │ SERIES: VHD2-DIP │ DESCRIPTION: DC-DC CONVERTER
date 09/10/2012 │ page 2 of 5
INPUT
parameter
conditions/description
min
typ
max
units
operating input voltage
5 V model
12 V model
4.5
10.8
5
12
5.5
13.2
Vdc
Vdc
parameter
conditions/description
min
typ
line regulation
for Vin change of 1%
load regulation
measured from 10%
load to full load
OUTPUT
5 V model
12 V model
voltage accuracy
see derating curves
switching frequency
100% load, input voltage range
temperature coefficient
max
units
±1.2
%
15
10
%
%
35
kHz
±0.03
%/°C
PROTECTIONS
parameter
conditions/description
min
typ
short circuit protection
max
units
1
s
max
units
SAFETY AND COMPLIANCE
parameter
conditions/description
min
isolation voltage
for 1 minute at 1 mA max.
6,000
Vdc
isolation resistance
at 500 Vdc
1,000
MΩ
safety approvals
UL 60950 (E222736)
3,500,000
hours
MTBF
RoHS compliant
typ
yes
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
typ
max
units
-40
85
°C
-55
125
°C
95
%
25
°C
300
°C
15
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CUI Inc │ SERIES: VHD2-DIP │ DESCRIPTION: DC-DC CONVERTER
date 09/10/2012 │ page 3 of 5
DERATING CURVES
1. output power vs. ambient temperature
2. output voltage vs. output current
+10%
Output Voltate (%)
Load (%)
100
80
60
40
20
-40
-20
0
20
40
60
85
+5%
+2.5%
Nominal
Voltage
-2.5%
-7.5%
10%
105 120
100%
50%
Ambient Temperature (°C)
Output Current (%)
MECHANICAL
parameter
conditions/description
dimensions
1.272 x 0.579 x 0.370 (32.3 x 14.7 x 9.40 mm)
min
case material
plastic (UL94-V0)
typ
units: mm
tolerance: ±0.25
pin section tolerance: ±0.10 mm
PIN CONNECTIONS
32.30
1716 15 14 13
14.70
1 2
8 9
11
Side View
9.40
0.65
4.00
27.94
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units
inch
MECHANICAL DRAWING
Top View
max
PIN
FUNCTION
1
+Vin
2
-Vin
8
NC
10
-Vo
12
+Vo
13
+Vo
15
-Vo
17
NC
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CUI Inc │ SERIES: VHD2-DIP │ DESCRIPTION: DC-DC CONVERTER
date 09/10/2012 │ 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
Input Voltage
External Input
Capacitance
5V
4.7 μF
12 V
L
L
+Vout
+Vin
DC DC
C
C
-Vin
2.2 μF
-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 additional filtering, but should not exeed 10μF or expanded to an LC network as in Figure 1.
Output Voltage
Table 2
External Input
Capacitance
+Vin
+Vout
REG
DC DC
-Vin
5V
4.7 μF
9V
2.2 μF
12 V
1.0 μF
+Vin
15 V
0.47 μF
-Vin
-Vout
REG
+Vout
DC DC
-Vout
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.
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CUI Inc │ SERIES: VHD2-DIP │ DESCRIPTION: DC-DC CONVERTER
date 09/10/2012 │ page 5 of 5
REVISION HISTORY
rev.
description
date
1.0
initial release
12/12/2007
1.01
new template applied, V-Infinity branding removed
09/10/2012
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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[email protected]
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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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