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12/17/2013
1 of 8
SERIES:
VFK600
│
DESCRIPTION:
DC-DC CONVERTER
FEATURES
• up to 700 W isolated output
• rugged metal enclosure with integrated heat sink
• 2:1 input range (18~36 Vdc, 36~75 Vdc)
• single output from 12~48 Vdc
• 1,500 Vdc isolation
• over current, over temperature, over voltage,
and short circuit protections
• remote on/off
• N+1 current sharing
• efficiency up to 92%
MODEL
VFK600-D24-S12
VFK600-D24-S24
VFK600-D24-S28
VFK600-D24-S32
VFK600-D24-S48
VFK600-D48-S12
VFK600-D48-S24
VFK600-D48-S28
VFK600-D48-S32
VFK600-D48-S48
Notes:
input
voltage
range
(Vdc)
output
voltage
(Vdc)
output
current
max
(A)
output
power
max
(W)
ripple
and noise
1
max
(mVp-p)
efficiency
typ
(%)
18 ~ 36
18 ~ 36
18 ~ 36
18 ~ 36
18 ~ 36
36 ~ 75
36 ~ 75
36 ~ 75
36 ~ 75
36 ~ 75
12
24
28
32
48
12
24
28
32
48
50
25
21.5
19
12.5
50
25
25
19
12.5
600
600
600
608
600
600
600
700
608
600
120
240
280
320
480
120
240
280
320
480
89
91
90
91
92
90
91
91
92
92
1. Ripple and noise are measured at full load, 20 MHz BW with 10µF tantalum capacitor and 1µF ceramic capacitor across output
PART NUMBER KEY
VFK600 - DXX - SXX
Base Number
Output Voltage
Input Voltage
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SERIES:
VFK600
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DESCRIPTION:
DC-DC CONVERTER
date
12/17/2013
│
page
2 of 8
INPUT
parameter
operating input voltage
input current
conditions/description
24 Vdc input models
48 Vdc input models
24 Vdc input models, Vin = 18 Vdc, full load
48 Vdc input models, Vin = 36 Vdc, full load
24 Vdc input
under voltage shutdown
48 Vdc input
24 Vdc input
over voltage shutdown
48 Vdc input
CTRL
1
input fuse
filter
Note:
1. Open collector refer to -Vin.
min
18
36
typ
24
48
37.7
21.7
max
36
75
units
Vdc
Vdc
A
A
power up
power down
power up
power down
power up
power down
power up
power down
models ON (3.5~7.5 Vdc or open circuit)
models OFF (0~0.7 Vdc)
16
15
34
32
17
16
35
33
38
40
77
80
18
17
36
34
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
positive logic
60 A time delay fuse for 24 Vin models,
30 A time delay fuse for 48 Vin models
pi filter
OUTPUT
parameter
maximum capacitive load
line regulation
load regulation
voltage accuracy
load share accuracy
adjustability
switching frequency
transient response
temperature coefficient
48 V input, 12/28/32 V output models
all other models
25% step load change
±0.03
50~100% load
60
300
250
500
±10
110
conditions/description
12 V output models
24~48 V output models
measured from low line to high line
measured from zero load to full load
min
470
470
typ
max
10,000
5,000
±0.2
±0.5
±1.5
units
μF
μF
%
%
%
%
%
kHz
kHz
µs
%/°C
PROTECTIONS
parameter
short circuit protection
over current protection
over voltage protection
over temperature protection
conditions/description
continuous
% nominal output current
%Vo
shutdown
110
115
110
150
140
%
%
°C
min
typ
max
units
SAFETY AND COMPLIANCE
parameter
isolation voltage
isolation resistance
RoHS
2011/65/EU (CE)
conditions/description
for 1 minute: input to output; input to case;
output to case
min
1,500
10
typ
max
units
Vdc
MΩ
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SERIES:
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DESCRIPTION:
DC-DC CONVERTER
date
12/17/2013
│
page
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ENVIRONMENTAL
parameter
operating temperature
storage temperature
conditions/description
see derating curves
min
-40
-55
typ
max
85
105
units
°C
°C
MECHANICAL
parameter
dimensions
case material
weight
conditions/description
199.14 x 126.75 x 39.12 (7.84 x 4.99 x 1.54 inch)
steel and aluminum extrusion
1.2
kg
min
typ
max
units
mm
MECHANICAL DRAWING
units: mm[inch]
tolerance: X.XX = ±0.5[±0.02]
X.XXX = ±0.25[±0.010]
wire range: 22~12 AWG
screw size: #6-32
PIN CONNECTIONS
PIN
1, 2
3
4
5, 6
7, 8
9
10
11
12
13, 14
FUNCTION
+Vin
REM
case
-Vin
+Vo
+S
PC
Trim
-S
-Vo
4.50 0.177
( 4 PLCS)
199.14 7.840
39.12 1.540
7
126.75 4.990
1
2
3
8
9
10
11
12
13
14
116.68 4.594
4
5
6
111.29 4.381
130.00 5.118
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SERIES:
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DESCRIPTION:
DC-DC CONVERTER
date
12/17/2013
│
page
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DERATING CURVES
VFK600 Power Derating Curves At Nominal Input
(Includes 24 V input, 12/24/28 V output models and VFK600-D48-S12)
120%
Natural
Convection
100%
Relative Output Power - % of nominal output
0.5 m/S
(100LFM)
80%
1.0 m/S
(200LFM)
60%
1.5 m/S
(300LFM)
2.0 m/S
(400LFM)
40%
2.5 m/S
(500LFM)
20%
3.0 m/S
(600LFM)
0%
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature - degrees C
3.5 m/S
(700LFM)
VFK600 Power Derating Curves At Nominal Input
(Includes 24 V input, 32/48 V output models and 48 V input, 24/28/32/48 V output models)
120%
Natural
Convection
100%
Relative Output Power - % of nominal output
0.5 m/S
(100LFM)
80%
1.0 m/S
(200LFM)
1.5 m/S
(300LFM)
60%
2.0 m/S
(400LFM)
40%
2.5 m/S
(500LFM)
20%
3.0 m/S
(600LFM)
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
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SERIES:
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DESCRIPTION:
DC-DC CONVERTER
date
12/17/2013
│
page
5 of 8
TEST CONFIGURATION
Figure 1
Table 1
A
+Vin
+Vout
+S
TRIM
-S
-Vout
C2
A
Load
Recommended External components
C1
C2
220 μF/100 V
470 μF/100 V
DC
C1
V
-Vin
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