Datasheet

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date
04/01/2013
page
1 of 6
SERIES: VCD40 │ DESCRIPTION: DC-DC CONVERTER
FEATURES
•
•
•
•
•
•
•
•
up to 40 W isolated output
wide input (2:1)
2"x2" six sided shielded metal case
single, dual, and triple regulated outputs
1500 V isolation
short circuit, over voltage and over temperature protection
wide temperature (-25~71°C)
efficiency up to 92%
RoHS
MODEL
input
voltage
output
voltage
input
current
output
current
ripple
and noise1
efficiency
typ
(Vdc)
range
(Vdc)
(Vdc)
no load
(mA)
full load
(mA)
max
(mA)
min
(mA)
max
(mVp-p)
typ
(%)
VCD40-D12-S2R5
12
9~18
2.5
200
2,367
10,000
0
50
88
VCD40-D12-S3R3
12
9~18
3.3
200
3,090
10,000
0
50
89
VCD40-D12-S5
12
9~18
5
200
3,745
8,000
0
50
89
VCD40-D12-S12
12
9~18
12
200
3,703
3,333
0
75
90
VCD40-D12-S15
12
9~18
15
200
3,702
2,666
0
75
90
VCD40-D12-D12
12
9~18
±12
100
4,045
±1,800
90
120
89
VCD40-D12-D15
12
9~18
±15
100
3,889
±1,400
70
150
90
VCD40-D12-T312
12
9~18
3.3/±12
200
2,784
6000/±400
600/±40
100
88
VCD40-D12-T315
12
9~18
3.3/±15
200
2,727
6000/±300
600/±30
100
88
VCD40-D12-T512
12
9~18
5/±12
200
3,750
6000/±400
600/±40
100
88
VCD40-D12-T515
12
9~18
5/±15
200
3,611
6000/±300
600/±30
100
90
VCD40-D24-S2R5
24
18~36
2.5
100
1,184
10,000
0
50
88
VCD40-D24-S3R3
24
18~36
3.3
100
1,545
10,000
0
50
89
VCD40-D24-S5
24
18~36
5
100
1,831
8,000
0
50
91
VCD40-D24-S12
24
18~36
12
100
1,811
3,333
0
75
92
VCD40-D24-S15
24
18~36
15
100
1,810
2,666
0
75
92
VCD40-D24-D12
24
18~36
±12
100
1,978
±1,800
90
120
91
VCD40-D24-D15
24
18~36
±15
100
1,902
±1,400
70
150
92
VCD40-D24-T312
24
18~36
3.3/±12
100
1,361
6000/±400
600/±40
100
90
VCD40-D24-T315
24
18~36
3.3/±15
100
1,333
6000/±300
600/±30
100
90
VCD40-D24-T512
24
18~36
5/±12
100
1,833
6000/±400
600/±40
100
90
VCD40-D24-T515
24
18~36
5/±15
100
1,806
6000/±300
600/±30
100
90
VCD40-D48-S2R5
48
36~72
2.5
50
585
10,000
0
50
89
VCD40-D48-S3R3
48
36~72
3.3
50
764
10,000
0
50
90
VCD40-D48-S5
48
36~72
5
60
926
8,000
0
50
90
VCD40-D48-S12
48
36~72
12
60
916
3,333
0
75
91
VCD40-D48-S15
48
36~72
15
60
906
2,666
0
75
92
VCD40-D48-D12
48
36~72
±12
50
1,000
±1,800
90
120
90
VCD40-D48-D15
48
36~72
±15
50
962
±1,400
70
150
91
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CUI Inc │ SERIES: VCD40 │ DESCRIPTION: DC-DC CONVERTER
MODEL
input
voltage
date 04/01/2013 │ page 2 of 6
output
voltage
input
current
output
current
ripple
and noise1
efficiency
typ
(Vdc)
range
(Vdc)
(Vdc)
no load
(mA)
full load
(mA)
max
(mA)
min
(mA)
max
(mVp-p)
typ
(%)
VCD40-D48-T312
48
36~72
3.3/±12
50
688
6000/±400
600/±40
100
89
VCD40-D48-T315
48
36~72
3.3/±15
50
690
6000/±300
600/±30
100
89
VCD40-D48-T512
48
36~72
5/±12
50
938
6000/±400
600/±40
100
88
VCD40-D48-T515
48
36~72
5/±15
50
903
6000/±300
600/±30
100
90
notes:
1. ripple and noise are measured at 20 Hz BW
PART NUMBER KEY
VCD40 - D XX - X XXX
Base Number
Input Voltage
Output Voltage
Output:
S = single
D = dual
T = triple
INPUT
parameter
conditions/description
operating input voltage
under voltage lockout
12
12
24
24
48
48
Vin
Vin
Vin
Vin
Vin
Vin
power
power
power
power
power
power
input filter
PI type
min
typ
max
units
9
18
36
12
24
48
18
36
72
Vdc
Vdc
Vdc
8.8
8.0
17
16
34
32
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
up 8.8 V
down 8.0 V
up 17 V
down 16 V
up 34 V
down 32 V
OUTPUT
parameter
conditions/description
min
single and dual output models
line regulation1
triple output models
main
auxillary
single and dual output models
load regulation2
max
units
±0.5
%
±1.0
±3.0
%
%
±0.5
±1.0
%
%
dual positive output models
3.3V
5V
±1.5
±4.0
%
%
triple output models
main
auxillary
±1.0
±4.0
%
%
±1.5
%
single output models
voltage accuracy
typ
dual positive output models
3.3V
5V
±1.5
±3.0
%
%
triple output models
main
auxillary
±1.5
±5.0
%
%
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CUI Inc │ SERIES: VCD40 │ DESCRIPTION: DC-DC CONVERTER
date 04/01/2013 │ page 3 of 6
OUTPUT
parameter
conditions/description
max
units
cross regulation3
+3.3V
+5V
min
typ
±1.0
±4.0
%
%
voltage balance
dual output models
±2.0
%
transient response
75-100% step load change
±5% error band
300
µs
external trim adjust range
single and dual output models
dual positive output models
±10
±5
current limit
110
switching frequency
140
350
temperature coefficient
Notes:
%
%
%
kHz
±0.02
%/°C
max
units
3.6
3.9
6.2
15
18
Vdc
Vdc
Vdc
Vdc
Vdc
max
units
1. measured from high line to low line
2. measured from full load to 10% load
2. measured from max. load to 10% load, other output at 10% load
PROTECTIONS
parameter
conditions/description
short circuit protection
continuous, hiccup
min
over temperture protection
over-voltage protection
typ
110
2.5V
3.3V
5V
12V
15V
zener diode clamp
°C
SAFETY AND COMPLIANCE
parameter
conditions/description
min
typ
isolation voltage
1,500
Vdc
insulation resistance
1,000
MΩ
RoHS compliant
yes
ENVIRONMENTAL
parameter
conditions/description
min
operating temperature
-40
1
case temperature1
storage temperature
Notes:
-55
1. measured from high line to low line
DERATING CURVES
Load (%)
100
80
60
40
20
-40
-20
0
20
40
60
80
Ambient Temperature (°C)
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100
120
typ
max
units
85
°C
100
°C
105
°C
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CUI Inc │ SERIES: VCD40 │ DESCRIPTION: DC-DC CONVERTER
date 04/01/2013 │ page 4 of 6
MECHANICAL
parameter
conditions/description
dimensions
2 x 2 x 0.4 (50.8 x 50.8 x 10.2 mm)
min
case material
black coated copper with non-conductive base
typ
max
units
inch
weight
65
g
MECHANICAL DRAWING
units: inches (mm)
tolerance: x.xx = ±0.02, x.xxx = ±0.010
(x.x = ±0.5, x.xx = ±0.25)
pin tolerance ±0.05mm
PIN CONNECTIONS
SINGLE OUTPUT
DUAL OUTPUT
DUAL POSITIVE
TRIPLE OUTPUT
PIN
FUNCTION
FUNCTION
FUNCTION
FUNCTION
1
+Vin
+Vin
+Vin
+Vin
2
-Vin
-Vin
-Vin
-Vin
3
on/off
on/off
on/off
on/off
4
NC
no pin
+3.3Vo
+Aux. out
5
-sense
+Vo
com(5V RTN)
common
6
+sense
common
trim
-Aux. out
7
+Vo
common
NC
+Vo
8
-Vo
-Vo
+5 Vo
-Vo (common)
9
trim
trim
com(5V RTN)
NC
REMOTE ON/OFF CONTROL
logic compatibility
CMOS or Open Collector TTL
EC-on
>+5.5 Vdc or Open Circuit
EC-off
<1.8 Vdc
shutdown idle current
10 mA
control common
referenced to input minus
TRIPLE OUTPUT LOADING TABLE1
EXTERNAL OUTPUT TRIMMING
PIN
VOLTAGE
7
AMPERES
min2
typ
+5
0.50
3.5
8,5
±12
0.10
0.31
8,5
±15
0.10
0.25
Output may optionally be externally trimmed (±10%) with a
fixed resistor or an external trimpot as shown.
Notes:
PIN 7
10 K
PIN 6
TRIM
UP
TRIM
DOWN
TRIM
UP/DOWN
PIN 5
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1. Maximum total power from all outputs is
limited to 25 watts but no output should
exceed its maximum current.
2. Minimum current on each output is
required to maintain specified regulation.
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CUI Inc │ SERIES: VCD40 │ DESCRIPTION: DC-DC CONVERTER
date 04/01/2013 │ page 5 of 6
1. The value of Rtrim-up defined as:
Rtrim - up = (
2. The output Voltage 3.3V,12V and 15V value of Rtrim are
defined as below:
R1x Vr
) - Rt (KΩ)
Vo - Vo , nom
Rtrim - up = (
Where: R trim-up is the external resistor in Kohm.
Vo,nom is the nominal output voltage.
Vo is the desired output voltage.
Rtrim - down = R1x (
R1 ,Rt and Vr are internal to the unit and are defined in Table 1.
For example, to trim-up the output voltage of 5.0V module
(VCD40-D48-S5) by 5% to 5.25V, R trim-up is calculated as follows:
Vo – Vo,nom = 5.25 – 5.0 = 0.25V
R1 = 2.32 Kohm
Rt = 8.2 Kohm , Vr= 2.5
Rtrim - up =
Vr x R1x ( R 2 + R3)
) - Rt (K Ω)
(Vo - Vo , nom ) x R 2
Vr x R1
- 1) - Rt (K Ω)
(Vo , nom - Vo ) x R 2
Where: R trim-up is the external resistor in Kohm.
Vo,nom is the nominal output voltage.
Vo is the desired output voltage.
R1, R2, R3, Rt and Vr are internal to the unit and are defined in Table 2.
Figure 1. Trim-up Voltage Setup
2.32 x 2.5
- 8.2 = 15 (K Ω)
0.25
+Vout
+Sense
+Vin
Trim
The value of R trim-down defined as:
Rtrim - down =
R-Load
R adj,up
R1 x (Vo - Vr )
- Rt (K Ω)
Vo , nom - Vo
-Sense
-Vout
-Vin
Figure 2. Trim-down Voltage Setup
Where: R trim-down is the external resistor in Kohm.
Vo,nom is the nominal output voltage.
Vo is the desired output voltage.
+Vout
+Sense
+Vin
R1 ,Rt and Vr are internal to the unit and are defined in Table 1.
R adj,down
For example, to trim-down the output voltage of 5.0V module
(VCD40-D48-S5) by 5% to 4.75V, R trim-down is calculated as follows :
R-Load
Trim
Vo,nom – Vo = 5.0 – 4.75 = 0.25 V
R1 = 2.32 Kohm
R t = 8.2 Kohm , Vr=2.5
Rtrim - down =
-Sense
-Vout
-Vin
2.32 x ( 4.75 - 2.5)
- 8.2 = 12.68 (K Ω)
0.25
Table 1 - Trim Resistor Values
Model Number
Output Voltage(V)
R1 (Kohm)
Rt (Kohm)
Vr
VCD40-D24-S5
VCD40-D48-S5
5.0
2.32
8.2
2.5
Table 2 - Trim Resistor Values
Model Number
Output Voltage(V)
R1 (Kohm)
R2 (Kohm)
R3 (Kohm)
Rt (Kohm)
Vr
VCD40-D24-S3R3
VCD40-D48-S3R3
3.3V
2.74
1.8
0.27
9.1
1.24
VCD40-D24-S12
VCD40-D48-S12
12V
6.8
2.4
2.32
22
2.5
VCD40-D24-S15
VCD40-D48-S15
15V
8.06
2.4
3.9
27
2.5
In order to trim the voltage up or down one needs to connect the trim resistor either between the trim pin and -Vo for trim-up and between trim
pin and +Vo for trim-down. The output voltage trim range is ±10%. This is shown in Figures 1 and 2:
Note:
All specifications measured at 25°C, nominal input voltage, and full load unless otherwise noted.
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CUI Inc │ SERIES: VCD40 │ DESCRIPTION: DC-DC CONVERTER
date 04/01/2013 │ page 6 of 6
REVISION HISTORY
rev.
description
date
1.0
initial release
06/28/2007
1.01
layout update, addition of triple output loading table
10/09/2009
1.02
new template applied, V-Infinity branding removed
09/07/2012
spec updated
04/01/2013
1.03
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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