VFK400W-Q24-S24 [CUI]
CONV DC-DC 24V OUT CHASSIS MNT;
| 型号： | VFK400W-Q24-S24 |
| 厂家： | 
CUI INC |
| 描述： | CONV DC-DC 24V OUT CHASSIS MNT |
| 文件： | 总6页 (文件大小：734K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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3D Model
date 11/13/2020
page 1 of 6
SERIES: VFK400W │ 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%
input
voltage
range
output
voltage
output
current
max
output
power
max
ripple
efficiency
MODEL
and noise1
max
max
(Vdc)
(Vdc)
12
(A)
(W)
(mVp-p)
(%)
VFK400W-Q24-S12
VFK400W-Q24-S24
VFK400W-Q24-S48
VFK400W-Q48-S122
VFK400W-Q48-S24
VFK400W-Q48-S48
10~36
10~36
10~36
20~75
18~75
18~75
33.3
16.7
8.3
400
400
398
400
400
398
200
240
480
200
240
480
87
86
24
48
86
12
33.3
16.7
8.3
87
24
86
48
86.5
Note:ꢀ
1.ꢀRippleꢀandꢀnoiseꢀareꢀmeasuredꢀatꢀfullꢀload,ꢀ20ꢀMHzꢀBWꢀwithꢀ10μFꢀtantalumꢀcapacitorꢀandꢀ1μFꢀceramicꢀcapacitorꢀacrossꢀtheꢀoutput.ꢀTheꢀ48ꢀVdcꢀoutputꢀmodelsꢀrequireꢀaꢀ
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
Base Number
Input Voltage
Output Voltage
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3D Model
CUI Inc │ SERIES: VFK400W │ DESCRIPTION: DC-DC CONVERTER
date 11/13/2020 │ page 2 of 6
INPUT
parameter
conditions/description
min
typ
max
units
24 Vdc input
10
24
36
Vdc
operating input voltage
12 Vdc output model
24/48 Vdc output models
20
18
48
48
75
75
Vdc
Vdc
48 Vdc input
24 Vdc input
48 Vdc input
power up
power down
9.5
8.5
Vdc
Vdc
under voltage shutdown
power up
power down
17.8
15.5
Vdc
Vdc
models ON (open circuit)
models OFF (0~1.2 Vdc)
CTRL1
filter
positive logic
piꢀfilter
Note:
1. Do not drive high, may damage device.
OUTPUT
parameter
conditions/description
for all models
min
typ
max
2,200
±1
units
μF
maximum output capacitance
line regulation
measured from high line to low line
measured from full load to zero load
%
load regulation
±1
%
voltage accuracy
adjustability
±1.5
105
%
90
%
switchingꢀfrequency
transient response
temperatureꢀcoefficient
250
kHz
µs
25% step load change
500
±0.03
%/°C
PROTECTIONS
parameter
conditions/description
continuous
min
typ
max
units
short circuit protection
over current protection
over voltage protection
over temperature protection
% nominal output current
110
115
150
140
%
%
°C
shutdown
110
SAFETY AND COMPLIANCE
parameter
conditions/description
min
1,500
10
typ
max
units
Vdc
for 1 minute: input to output; input to case;
output to case
isolation voltage
isolation resistance
RoHS
MΩ
2011/65/EU (CE)
ENVIRONMENTAL
parameter
conditions/description
min
-40
-55
typ
max
85
units
°C
operating temperature
storage temperature
see derating curves
105
°C
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CUI Inc │ SERIES: VFK400W │ DESCRIPTION: DC-DC CONVERTER
date 11/13/2020 │ page 3 of 6
MECHANICAL
parameter
dimensions
conditions/description
min
typ
max
units
198.90 x 127.00 x 38.93 (7.831 x 5.000 x 1.533 inch)
steel and aluminum extrusion
mm
case material
weight
1.18
kg
MECHANICAL DRAWING
units: mm[inch]
tolerance: X.X = ±0.5[±0.02]
X.XX = ±0.25[±0.010]
wire range: 22~12 AWG
screw size: #6-32
PIN CONNECTIONS
PIN
1, 2
3, 4
5
FUNCTION
+Vin
-Vin
on/off
case
6
7, 8
9
+Vout
+S
10
trim
11
-S
12, 13
-Vout
198.90 7.831
4.50 0.177
(4 PLCS)
38.93 1.533
7
8
1
2
3
9
111.29 4.382
10
11
12
13
127.00 5.000
116.92 4.603
4
5
6
130.00 5.118
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3D Model
CUI Inc │ SERIES: VFK400W │ DESCRIPTION: DC-DC CONVERTER
date 11/13/2020 │ page 4 of 6
DERATING CURVES
VFK400W Power Derating Curves At Nominal Input
(Includes VFK400W-Q24-S12 and all 48 Vdc input models)
120%
100%
80%
60%
40%
(300LFM)
2.0 m/S
(400LFM)
2.5 m/S
(500LFM)
3.0 m/S
(600LFM)
20%
0%
3.5 m/S
(700LFM)
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature - degrees C
VFK400W Power Derating Curves At Nominal Input
(Includes VFK400W-Q24-S24 and VFK400W-Q24-S48)
120%
100%
80%
60%
40%
(300LFM)
2.0 m/S
(400LFM)
2.5 m/S
(500LFM)
3.0 m/S
(600LFM)
20%
0%
3.5 m/S
(700LFM)
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature - degrees C
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3D Model
CUI Inc │ SERIES: VFK400W │ DESCRIPTION: DC-DC CONVERTER
date 11/13/2020 │ page 5 of 6
APPLICATION NOTES
1. Output Voltage Trimming
ꢀ
Leaveꢀopenꢀifꢀnotꢀused.
Figure 1
ApplicationꢀCircuitꢀforꢀTrimꢀpin
+Vo
+Sense
+Vin
R trim-up
Trim up
R-Load
Trim
-Sense
-Vo
-Vin
+Vo
+Sense
+Vin
Trim
R-Load
Trim down
R trim-down
-Sense
-Vo
-Vin
Table 1
TrimꢀUpꢀResistorꢀValuesꢀ(MΩ)1
Desired Vout
(%Vout)
Table 2
TrimꢀDownꢀResistorꢀValuesꢀ(KΩ)
Desired Vout
(%Vout)
101%
102%
103%
104%
105%
90%
92%
94%
96%
98%
Nom. Vout
(Vdc)
Nom. Vout
(Vdc)
12
24
48
2.2
4.3
10
1.6
3.3
6.8
1.2
2.2
4.8
0.82
1.6
0.68
1.5
12
24
48
9
12
22
32
22
51
49
51
100
300
300
12
22
100
100
3.9
3.5
Note:ꢀ
1.ꢀVFK400W-Q48-S12ꢀmodelꢀrequiresꢀminimumꢀinputꢀvoltageꢀofꢀ21.6ꢀVdcꢀinꢀorderꢀtoꢀtrimꢀbetweenꢀ100~105%.
Note:ꢀ
Allꢀspecificationsꢀmeasuredꢀatꢀ25°C,ꢀnominalꢀinputꢀvoltage,ꢀandꢀfullꢀloadꢀunlessꢀotherwiseꢀnoted.
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3D Model
CUI Inc │ SERIES: VFK400W │ DESCRIPTION: DC-DC CONVERTER
date 11/13/2020 │ page 6 of 6
REVISION HISTORY
rev.
description
date
1.0
initial release
updated adjustability range
corrected weight
03/13/2012
09/20/2012
12/18/2012
04/01/2013
01/03/2014
11/13/2020
1.01
1.02
1.03
1.04
1.05
updated spec
added trimming information
CTRLꢀlineꢀupdated
Theꢀrevisionꢀhistoryꢀprovidedꢀisꢀforꢀinformationalꢀpurposesꢀonlyꢀandꢀisꢀbelievedꢀtoꢀbeꢀaccurate.
Headquarters
20050 SW 112th Ave.
Tualatin,ꢀORꢀ97062
800.275.4899
Fax 503.612.2383
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techsupport@cui.com
CUIꢀoffersꢀaꢀtwoꢀ(2)ꢀyearꢀlimitedꢀwarranty.ꢀꢀCompleteꢀwarrantyꢀinformationꢀisꢀlistedꢀonꢀourꢀwebsite.
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.
CUIꢀproductsꢀareꢀnotꢀauthorizedꢀorꢀwarrantedꢀforꢀuseꢀasꢀcriticalꢀcomponentsꢀinꢀequipmentꢀthatꢀrequiresꢀanꢀextremelyꢀhighꢀlevelꢀofꢀreliability.ꢀꢀAꢀcriticalꢀcomponentꢀisꢀanyꢀcomponentꢀofꢀaꢀ
lifeꢀsupportꢀdeviceꢀorꢀsystemꢀwhoseꢀfailureꢀtoꢀperformꢀcanꢀbeꢀreasonablyꢀexpectedꢀtoꢀcauseꢀtheꢀfailureꢀofꢀtheꢀlifeꢀsupportꢀdeviceꢀorꢀsystem,ꢀorꢀtoꢀaffectꢀitsꢀsafetyꢀorꢀeffectiveness.
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