Datenblatt

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date
06/16/2014
page
1 of 6
SERIES: VFK400W-DIN │ DESCRIPTION: DC-DC CONVERTER
FEATURES
•
•
•
•
•
•
up to 400 W isolated output
rugged metal enclosure with integrated heat sink
4:1 input range (10~36 Vdc, 18~75 Vdc)
single output from 12~48 Vdc
1,500 Vdc isolation
over current, over temperature, over voltage,
and short circuit protection
• remote on/off
• efficiency up to 87%
• comes with DIN-rail mount
MODEL
input
voltage
output
voltage
output
current
output
power
ripple
and noise1
efficiency
range
(Vdc)
(Vdc)
max
(A)
max
(W)
max
(mVp-p)
max
(%)
VFK400W-Q24-S12-DIN
VFK400W-Q24-S12
10~36
12
33.3
400
200
87
VFK400W-Q24-S24-DIN
VFK400W-Q24-S24
10~36
24
16.7
400
240
86
VFK400W-Q24-S48-DIN
VFK400W-Q24-S48
10~36
48
8.3
398
480
86
VFK400W-Q48-S12-DIN
VFK400W-Q48-S12
20~75
12
33.3
400
200
87
VFK400W-Q48-S24-DIN
VFK400W-Q48-S24
18~75
24
16.7
400
240
86
VFK400W-Q48-S48-DIN
VFK400W-Q48-S48
18~75
48
8.3
398
480
86.5
2
Note:
1. Ripple and noise are measured at full load, 20 MHz BW with 10μF tantalum capacitor and 1μF ceramic capacitor across the output. The 48 Vdc output models require a
22uF aluminum capacitor and a 1uF ceramic capacitor across the output.
2. An external input capacitor of 470uF is recommended to reduce input ripple voltage.
PART NUMBER KEY
VFK400W - QXX - SXX - DIN
Base Number
Input Voltage
Output Voltage
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Mounting Type
DIN = DIN-rail mount
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CUI Inc │ SERIES: VFK400W-DIN │ DESCRIPTION: DC-DC CONVERTER
date 06/16/2014 │ page 2 of 6
INPUT
parameter
conditions/description
24 Vdc input
operating input voltage
Note:
max
units
24
36
Vdc
20
18
48
48
75
75
Vdc
Vdc
12 Vdc output model
24/48 Vdc output models
24 Vdc input
power up
power down
9.5
8.5
Vdc
Vdc
48 Vdc input
power up
power down
17.8
15.5
Vdc
Vdc
positive logic
filter
typ
10
48 Vdc input
under voltage shutdown
CTRL1
min
models ON (>3.5 Vdc or open circuit)
models OFF (0~1.2 Vdc)
pi filter
1. Open collector refer to -Vin
OUTPUT
parameter
conditions/description
min
maximum output capacitance
for all models
line regulation
measured from high line to low line
load regulation
measured from full load to zero load
typ
voltage accuracy
adjustability
90
switching frequency
transient response
max
units
2,200
μF
±1
%
±1
%
±1.5
%
105
250
25% step load change
500
temperature coefficient
%
kHz
±0.03
µs
%/°C
PROTECTIONS
parameter
conditions/description
short circuit protection
continuous
over current protection
% nominal output current
min
over voltage protection
over temperature protection
max
units
110
150
%
115
140
%
shutdown
typ
110
°C
SAFETY AND COMPLIANCE
parameter
conditions/description
min
isolation voltage
for 1 minute: input to output; input to case;
output to case
isolation resistance
RoHS
typ
max
units
1,500
Vdc
10
MΩ
2011/65/EU (CE)
ENVIRONMENTAL
parameter
conditions/description
min
operating temperature
see derating curves
storage temperature
cui.com
typ
max
units
-40
85
°C
-55
105
°C
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CUI Inc │ SERIES: VFK400W-DIN │ DESCRIPTION: DC-DC CONVERTER
date 06/16/2014 │ page 3 of 6
MECHANICAL
parameter
conditions/description
dimensions
7.83 x 5.00 x 2.11 (199.0 x 127.0 x 53.6 mm)
min
case material
steel and aluminum extrusion
typ
max
inch
weight
1.53
kg
MECHANICAL DRAWING
units: inch[mm]
tolerance: X.XX = ±0.02[±0.5]
X.XXX = ±0.010[±0.25]
wire range: 22~12 AWG
screw size: #6-32
mounts to TS35 rails
0.18 4.5
PIN CONNECTIONS
FUNCTION
+Vin
3, 4
-Vin
5
REM
6
CASE
7, 8
+Vout
9
+S
10
TRIM
11
-S
12, 13
-Vout
7
1
4.63 117.5
5.00 127.0
PIN
1, 2
6
13
1.29 32.7
5.12 130.0
7.69 195.4
0.07 1.8
7.83 199.0
0.57 14.6
0.50 12.8
1.54[39.0]
Top View
1.38 35.0
2 - DIN RAIL CLIP
Side View
OUTPUT
1.57 40.0
INPUT
1.57 40.0
1.91 48.5
Back View
0.75 19.0
Front View
Bottom View
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units
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CUI Inc │ SERIES: VFK400W-DIN │ DESCRIPTION: DC-DC CONVERTER
date 06/16/2014 │ page 4 of 6
DERATING CURVES
VFK400W-DIN Power Derating Curves At Nominal Input
(Includes VFK400W-Q24-S12-DIN and all 48 Vdc input models)
120%
Natural
Convection
Relative Output Power - % off nominal output
100%
0.5 m/S
(100LFM)
1.0 m/S
(200LFM)
80%
1.5 m/S
(300LFM)
60%
2.0 m/S
(400LFM)
2.5 m/S
(500LFM)
40%
3.0 m/S
(600LFM)
20%
3.5 m/S
(700LFM)
0%
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature - degrees C
VFK400W-DIN Power Derating Curves At Nominal Input
(Includes VFK400W-Q24-S24-DIN and VFK400W-Q24-S48-DIN)
120%
Natural
Convection
Relative Output Power - % off nominal output
100%
0.5 m/S
(100LFM)
1.0 m/S
(200LFM)
80%
1.5 m/S
(300LFM)
60%
2.0 m/S
(400LFM)
2.5 m/S
(500LFM)
40%
3.0 m/S
(600LFM)
20%
3.5 m/S
(700LFM)
0%
0
5
10
15
20
25
30
35
40
45
50
55
Ambient Temperature - degrees C
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60
65
70
75
80
85
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CUI Inc │ SERIES: VFK400W-DIN │ DESCRIPTION: DC-DC CONVERTER
date 06/16/2014 │ page 5 of 6
APPLICATION NOTES
1.
Output Voltage Trimming
Leave open if not used.
Figure 1
Application Circuit for Trim pin
+Vin
+Vo
+Sense
R trim-up
Trim up
R-Load
Trim
-Vin
-Sense
-Vo
+Vin
+Vo
+Sense
Trim
Trim down
R-Load
R trim-down
-Vin
Table 1
Table 2
Trim Up Resistor Values (MΩ)1
Trim Down Resistor Values (KΩ)
Desired Vout
(%Vout)
101%
102%
103%
104%
105%
2.2
1.6
1.2
0.82
0.68
24
4.3
3.3
2.2
1.6
1.5
48
10
6.8
4.8
3.9
3.5
Nom. Vout
(Vdc)
12
-Sense
-Vo
Desired Vout
(%Vout)
90%
92%
94%
96%
98%
9
12
22
51
100
24
12
22
51
100
300
48
22
32
49
100
300
Nom. Vout
(Vdc)
12
Note:
1. VFK400W-Q48-S12-DIN model requires minimum input voltage of 21.6 Vdc in order to trim between 100~105%.
Note:
All specifications measured at 25°C, nominal input voltage, and full load unless otherwise noted.
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CUI Inc │ SERIES: VFK400W-DIN │ DESCRIPTION: DC-DC CONVERTER
date 06/16/2014 │ page 6 of 6
REVISION HISTORY
rev.
description
date
1.0
initial release
01/03/2014
1.01
changed DIN-rail mount
06/16/2014
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
Fax 503.612.2383
cui.com
[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.
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