Datasheet

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date
09/19/2013
page
1 of 5
SERIES: VAWQ12 │ DESCRIPTION: DC-DC CONVERTER
FEATURES
•
•
•
•
•
•
•
•
up to 12 W isolated output
wide input (4:1)
industry standard 24 pin DIP package
single regulated outputs
1,500 V isolation
short circuit and over voltage protection
wide temperature (-40~85°C)
efficiency up to 88%
RoHS
input
voltage
MODEL
output
voltage
output
current
output
power
ripple
and noise1
efficiency
typ
(Vdc)
range
(Vdc)
(Vdc)
max
(mA)
max
(W)
max
(mVp-p)
typ
(%)
VAWQ12-Q24-S3R3
24
9.0~36.0
3.3
3,500
11.55
85
85
VAWQ12-Q24-S5
24
9.0~36.0
5
2,400
12
85
86
VAWQ12-Q24-S12
24
9.0~36.0
12
1,000
12
85
86
VAWQ12-Q24-S15
24
9.0~36.0
15
800
12
85
86
VAWQ12-Q48-S3R3
48
18.0~75.0
3.3
3,500
11.55
85
85
VAWQ12-Q48-S5
48
18.0~75.0
5
2,400
12
85
87
VAWQ12-Q48-S12
48
18.0~75.0
12
1,000
12
85
87
VAWQ12-Q48-S15
48
18.0~75.0
15
800
12
85
88
Notes:
1. ripple and noise are measured at 20 MHz BW
PART NUMBER KEY
VAWQ12 - QXX - SXX
Base Number
Input Voltage
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Output Voltage
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CUI Inc │ SERIES: VAWQ12 │ DESCRIPTION: DC-DC CONVERTER
date 09/19/2013 │ page 2 of 5
INPUT
parameter
conditions/description
operating input voltage
CTRL
max
units
24
48
36.0
75.0
Vdc
Vdc
40
Vdc
1.2
Vdc
max
units
12
W
or open circuit
module off
Note:
typ
9.0
18.0
3
module on
1
min
0
1. Control pin voltage referenced to GND
OUTPUT
parameter
conditions/description
min
output power
typ
1.2
line regulation
input voltage from low to high
±0.2
±0.5
%
load regulation
measured from 10% load to full load
±0.5
±1.5
%
±1
±3
%
400
450
voltage accuracy
switching frequency
measured from 10% load to full load
350
temperature coefficient
±0.02
kHz
%/°C
PROTECTIONS
parameter
conditions/description
over voltage protection
3.3 V model
5 V model
12 V model
15 V model
24 V input
under voltage protection
48 V input
short circuit protection
min
typ
max
4.3
6
13
16
units
Vdc
Vdc
Vdc
Vdc
module on
8.8
9
Vdc
module off
8.3
8.5
Vdc
module on
17
17.5
Vdc
module off
16.5
17
Vdc
typ
max
units
continuous, automatic recovery
SAFETY AND COMPLIANCE
parameter
conditions/description
isolation voltage
for 1 minute at 1 mA max.
1,500
Vdc
isolation resistance
at 500 Vdc
1,000
MΩ
1,000,000
hours
MTBF
MIL-HDBK-217F, at 25°C
RoHS compliant
yes
min
ENVIRONMENTAL
parameter
conditions/description
min
operating temperature
see derating curves
-40
storage temperature
typ
-55
case temperature
95
storage humidity
non-condensing
lead temperature
1.5 mm from case for 10 seconds
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max
units
85
°C
125
°C
105
°C
95
%
300
°C
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CUI Inc │ SERIES: VAWQ12 │ DESCRIPTION: DC-DC CONVERTER
date 09/19/2013 │ page 3 of 5
DERATING CURVES
2. output power vs. ambient temperature (≥5 V)
100
100
80
80
Load (%)
Load (%)
1. output power vs. ambient temperature (3.3 V)
60
40
20
-40
60
40
20
-20
0
20
40 50 60
85
100
-40
120
-20
0
Ambient Temperature (°C)
20
40
55
85
100
120
Ambient Temperature (°C)
MECHANICAL
parameter
conditions/description
dimensions
32.00 x 20.00 x 10.80 (1.260 x 0.787 x 0.425 inch)
min
case material
aluminum alloy
typ
units
mm
weight
14
MECHANICAL DRAWING
units: mm [inches]
tolerance: ±0.25 [±0.010]
pin section tolerance: ±0.10 mm [±0.004]
PIN CONNECTIONS
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max
PIN
FUNCTION
1
CTRL
2,3
GND
11
NC
14
+Vo
16
0V
22,23
Vin
g
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CUI Inc │ SERIES: VAWQ12 │ DESCRIPTION: DC-DC CONVERTER
date 09/19/2013 │ page 4 of 5
EFFICIENCY CURVES
2. efficiency vs. input voltage
VAWQ12-Q24-S3R3
90
90
80
70
60
50
40
30
85
Efficiency (%)
Efficiency (%)
1. efficiency vs. load
VAWQ12-Q24-S3R3
20
10
0
80
75
70
65
60
55
50
0
1,000
2,000
3,000
4,000
9
12
15
Load (mA)
18
21
24
27
30
33
36
Input Voltage (V)
APPLICATION NOTES
1.
Recommended Circuit
All of the VAWQ12 models have been tested according to the following recommended testing circuit before leaving factory. If you want
to further decrease the input ripple, Cin is recommended to use 100 μF. If ripple and noise are required, you can increase capacitance
of Cout properly. However, the capacitance should not be higher than Max capacitance. (see Figure 1).
Figure 1
Vin
Vout
C in
DC
DC
GND
2.
Recommended Capacitance
Table 1
Note:
0V
Vout
(Vdc)
Cin
(μF)
Cout
(μF)
3.3/5
100
220
12/15
100
100
1. All specifications measured at Ta: 25°C, humidity <75%, nominal input voltage and rated output load unless otherwise specified
2. When product begins to work, the temperature may rise slowly until the unit is stabilized. It is normal that the output voltage, derating, and efficiency may reduce during
this time.
3. Min. load shouldn't be less than 10%, otherwise ripple maybe increased dramatically. If the product operates under min. load may not meet all specifications listed.
Operation under minimum load will not damage the converter.
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CUI Inc │ SERIES: VAWQ12 │ DESCRIPTION: DC-DC CONVERTER
date 09/19/2013 │ page 5 of 5
REVISION HISTORY
rev.
description
date
1.0
initial release
09/10/2009
1.01
new template applied
04/17/2012
1.02
V-Infinity branding removed
09/11/2012
1.03
case material changed to aluminum alloy, dimensions changed, spec
updated
07/19/2013
1.04
added minimum load note
09/19/2013
The revision history provided is for informational purposes only and is believed to be accurate.
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Fax 503.612.2383
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