Datasheet

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date
09/11/2012
page
1 of 5
SERIES: VRX3-DIP │ DESCRIPTION: DC-DC CONVERTER
3 W isolated output
• short circuit protection
wide input (2:1)
• wide temperature (-40~85°C)
industry standard 10 pin DIP package • efficiency up to 80%
no heatsink required
unregulated outputs
1,500 V isolation
RoHS
input
voltage
MODEL
output
voltage
U
•
•
•
•
•
•
ED
FEATURES
output
current
output
power
ripple
and noise1
efficiency
max
(mA)
max
(W)
typ
(mVp-p)
typ
(%)
±200
3
50
68
±16
±167
3
50
70
±12
±125
3
50
72
range
(Vdc)
(Vdc)
min
(mA)
VRA3-D5-D5-DIP
5
4.5~9.0
±5
±30
VRA3-D5-D9-DIP
5
4.5~9.0
±9
VRA3-D5-D12-DIP
5
4.5~9.0
±12
±15
N
typ
(Vdc)
5
4.5~9.0
3
50
73
VRA3-D12-D5-DIP
12
9.0~18.0
±5
±30
±10
±200
±100
3
50
74
VRA3-D12-D9-DIP
12
9.0~18.0
±9
±16
±167
3
50
76
TI
VRA3-D5-D15-DIP
VRA3-D12-D12-DIP
12
9.0~18.0
±12
±12
±125
3
50
78
VRA3-D12-D15-DIP
12
9.0~18.0
±15
±10
±100
3
50
79
24
24
18.0~36.0
±5
N
VRA3-D24-D5-DIP
VRA3-D24-D9-DIP
18.0~36.0
±9
±30
±200
3
50
77
±16
±167
3
50
78
VRA3-D24-D12-DIP
24
18.0~36.0
±12
±12
±125
3
50
79
VRA3-D24-D15-DIP
24
18.0~36.0
±15
±10
±100
3
50
80
VRA3-D48-D12-DIP
VRA3-D48-D15-DIP
36.0~72.0
48
36.0~72.0
VRB3-D5-S9-DIP
±5
±30
±200
3
50
77
±9
±16
±167
3
50
78
48
36.0~72.0
±12
±12
±125
3
50
79
48
36.0~72.0
±15
±10
±100
3
50
80
5
4.5~9.0
5
60
600
3
50
68
5
4.5~9.0
9
33
333
3
50
70
IS
C
VRB3-D5-S5-DIP
48
O
VRA3-D48-D5-DIP
VRA3-D48-D9-DIP
VRB3-D5-S12-DIP
5
4.5~9.0
12
25
250
3
50
72
VRB3-D5-S15-DIP
5
4.5~9.0
15
20
200
3
50
73
VRB3-D12-S5-DIP
12
9.0~18.0
5
60
600
3
50
74
VRB3-D12-S9-DIP
12
9.0~18.0
9
33
333
3
50
76
VRB3-D12-S12-DIP
12
9.0~18.0
12
25
250
3
50
78
VRB3-D12-S15-DIP
12
9.0~18.0
15
20
200
3
50
77
VRB3-D24-S5-DIP
24
18.0~36.0
5
60
600
3
50
77
24
18.0~36.0
9
33
333
3
50
78
24
18.0~36.0
12
25
250
3
50
79
D
VRB3-D24-S9-DIP
VRB3-D24-S12-DIP
VRB3-D24-S15-DIP
24
18.0~36.0
15
20
200
3
50
80
VRB3-D48-S5-DIP
48
36.0~72.0
5
60
600
3
50
77
VRB3-D48-S9-DIP
48
36.0~72.0
9
33
333
3
50
78
VRB3-D48-S12-DIP
48
36.0~72.0
12
25
250
3
50
79
VRB3-D48-S15-DIP
48
36.0~72.0
15
20
200
3
50
80
Notes:
1. ripple and noise are measured at 20 MHz BW
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CUI Inc │ SERIES: VRX3-DIP │ DESCRIPTION: DC-DC CONVERTER
date 09/11/2012 │ page 2 of 5
PART NUMBER KEY
Input Voltage
Output:
Packaging Style
S = single
D = dual
Output Voltage
U
Base Number:
A = dual output voltage
Ex: VRA3-D5-D5-DIP
B = single output voltage
Ex: VRB3-D5-S5-DIP
ED
VR X 3 - DXX - X XX -DIP
parameter
conditions/description
operating input voltage
5 V model
12 V model
24 V model
48 V model
OUTPUT
typ
max
units
4.5
9.0
18.0
36.0
5
12
24
48
9.0
18.0
36.0
72.0
Vdc
Vdc
Vdc
Vdc
conditions/description
min
typ
max
units
TI
parameter
min
N
INPUT
line regulation
input voltage from low to high
±0.2
±0.5
%
load regulation
measured from 10%
load to full load
±0.5
±0.5
±1.0
±0.75
%
%
voltage accuracy
positive
negative
±1
±3
±3
±5
%
%
ripple and noise
20 MHz bandwidth
50
100
mVp-p
switching frequency
100% load, input voltage range
parameter
N
conditions/description
300
kHz
±0.03
%/°C
min
typ
max
units
min
typ
max
units
continuous
IS
C
short circuit protection
O
temperature coefficient
PROTECTIONS
VRA3 models
VRB3 models
SAFETY AND COMPLIANCE
parameter
conditions/description
isolation voltage
for 1 minute at 1 mA max.
1,500
isolation resistance
at 500 Vdc
1,000
isolation capacitance
input to output at 100 kHz / 1 V
MTBF
RoHS compliant
Vdc
MΩ
85
pF
1,000,000
hours
yes
D
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
%
15
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°C
300
°C
For more information, please visit the product page.
CUI Inc │ SERIES: VRX3-DIP │ DESCRIPTION: DC-DC CONVERTER
date 09/11/2012 │ page 3 of 5
DERATING CURVES
Load (%)
100
80
60
40
20
-20
0
20
40
60 71
85
MECHANICAL
100
parameter
conditions/description
dimensions
1.252 x 0.787 x 0.394 (31.80 x 20.00 x 10.00 mm)
case material
stainless steel
MECHANICAL DRAWING
typ
max
14
g
∅1.00 [0.039]
O
31.80 [1.252]
9 10 11
23 22
15.24 [0.600]
2.54 [0.100]
15.24 [0.600]
3
(Bottom View)
23 22
16 15 14
IS
C
20.00 [0.787]
2
2
2.54 [0.100]
3
9 10 11
4.47 [0.176]
PIN CONNECTIONS
10.00
[0.394]
4.10 [0.161]
(Side View)
16 15 14
2.54 [0.100]
22.86 [0.900]
22.86 [0.900]
0.50 [0.020]
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units
inch
N
units: mm [inches]
tolerance: ±0.25 [±0.010]
pin section tolerance: ±0.10 mm [±0.004]
D
min
TI
weight
120
N
Ambient Temperature (°C)
U
-40
ED
1. output power vs. ambient temperature
SERIES
VRA3
VRB3
PIN
FUNCTION
FUNCTION
2,3
GND
GND
9
NC
0V
10,15
NC
NC
11
NC
-Vo
14
+Vo
+Vo
16
0V
0V
22,23
+Vin
+Vin
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CUI Inc │ SERIES: VRX3-DIP │ DESCRIPTION: DC-DC CONVERTER
date 09/11/2012 │ 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.
Recommended Circuit
All VRX3 converters have been tested according to the following recommended testing circuit before leaving the factory. This series
should be tested under load, never under no load (Figure 1).
VRA3
VRB3
+Vo
Vin
Vin
Cout
Cin
DC
DC
Cout
G ND
+Vo
Cin
0V
G ND
- Vo
DC
DC
Cout
U
Figure 1
ED
1.
0V
N
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 see
(Table 1).
General:
5, 12 V
24, 48 V
Cout
10 μF / 100 mA
Table 1
IS
C
O
Input Current(A)
General: Ip ≤1.4*Iin-max
Ip
Inp ut Voltage
Ra nge
Input Voltage (V)
No parallel connection or plug and play
D
4.
VRA3 Vout
(Vdc)
Cout
(μF)
VRB3 Vout
(Vdc)
Cout
(μF)
±5
680
5
1,000
±9
470
9
680
±12
330
12
470
±15
220
15
330
Input Current
While using unstable power source, please ensure the output voltage and ripple voltage do not excced indexes of the converter. The
preceding power source must be able to provide for converter sufficient starting current Ip.
N
3.
100 μF
10 ~ 22 μF
TI
Cin
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CUI Inc │ SERIES: VRX3-DIP │ DESCRIPTION: DC-DC CONVERTER
date 09/11/2012 │ page 5 of 5
REVISION HISTORY
description
date
1.0
initial release
05/09/2012
1.01
V-Infinity branding removed
ED
rev.
09/11/2012
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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Tualatin, OR 97062
800.275.4899
Fax 503.612.2383
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