Product Page 30 Model " CUI |NC® <>> (E) n m XX XXX f/f\ umber Input Vo‘tage Vows Remote 0
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date 12/16/2013
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SERIES: VHK100W DESCRIPTION: DC-DC CONVERTER
date 12/16/2013
page 1 of 8
FEATURES
• up to 100 W isolated output
• rugged metal enclosure with integrated heat sink
• 4:1 input range (9~36 Vdc, 18~75 Vdc)
• single output from 3.3~48 Vdc
• 1,500 Vdc isolation
• over current, over temperature, over voltage,
and short circuit protections
• remote on/off
• efficiency up to 87%
PART NUMBER KEY
MODEL input
voltage
output
voltage
output
current
output
power
ripple
and noise1
efficiency
range
(Vdc) (Vdc)
max
(A)
max
(W)
max
(mVp-p)
typ
(%)
VHK100W-Q24-S3R3 9 ~ 36 3.3 20 66 100 80
VHK100W-Q24-S5 9 ~ 36 5 20 100 100 82
VHK100W-Q24-S12 9 ~ 36 12 8.3 100 150 84
VHK100W-Q24-S15 9 ~ 36 15 6.7 100 150 85.5
VHK100W-Q24-S24 9 ~ 36 24 4.17 100 240 85
VHK100W-Q24-S28 9 ~ 36 28 3.57 100 280 86
VHK100W-Q24-S48 9 ~ 36 48 2.08 100 480 84
VHK100W-Q48-S3R3 18 ~ 753.3 20 66 100 79
VHK100W-Q48-S5 18 ~ 75 5 20 100 100 84.5
VHK100W-Q48-S12 18 ~ 75 12 8.3 100 150 85.5
VHK100W-Q48-S15 18 ~ 75 15 6.7 100 150 86.5
VHK100W-Q48-S24 18 ~ 75 24 4.17 100 240 87
VHK100W-Q48-S28 18 ~ 75 28 3.57 100 280 86
VHK100W-Q48-S48 18 ~ 75 48 2.08 100 480 85
Note: 1. Ripple and noise are measured at full load, 20 MHz BW with 10µF tantalum capacitor and 1µF ceramic capacitor across output. The 48 Vdc output models only require
the 1µF ceramic capacitor across the output.
VHK100W - QXX - SXX X
Input Voltage Output Voltage
Base Number Remote On/Off Control
"blank" = positive logic
N = negative logic
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CUI Inc SERIES: VHK100W DESCRIPTION: DC-DC CONVERTER date 12/16/2013 page 2 of 8
INPUT
parameter conditions/description min typ max units
operating input voltage 24 Vdc input models
48 Vdc input models
9
18
24
48
36
75
Vdc
Vdc
under voltage shutdown
24 Vdc input power up
power down
8.8
8
Vdc
Vdc
48 Vdc input power up
power down
17
16
Vdc
Vdc
CTRL1
positive logic models ON (>3.5 Vdc or open circuit)
models OFF (0~1.8 Vdc)
negative logic models ON (0~1.8 Vdc)
models OFF (>3.5 Vdc or open circuit)
filter pi filter
input fuse 20A time delay fuse for 24 Vin models,
10A time delay fuse for 48 Vin models
Note: 1. Open collector refer to -Vin
OUTPUT
parameter conditions/description min typ max units
maximum capacitive load
3.3 and 5 V output models
12 V output models
15 V output models
24 & 28 V output models
48 V output models 47
20,000
8,300
6,700
2,200
470
μF
μF
μF
μF
μF
line regulation2measured from high line to low line ±0.2 %
load regulation2measured from full load to zero load ±0.2 %
voltage accuracy2±1.5 %
adjustability ±10 %
switching frequency 250 kHz
transient response 25% step load change 500 µs
temperature coefficient ±0.03 %/°C
Note: 2. A 47 μF aluminum capacitor is required on the output for 48 Vdc output models.
PROTECTIONS
parameter conditions/description min typ max units
short circuit protection continuous
over current protection % nominal output current 110 140 %
over voltage protection 115 140 %
over temperature protection shutdown 105 °C
SAFETY AND COMPLIANCE
parameter conditions/description min typ max units
isolation voltage for 1 minute: input to output; input to case;
output to case 1,500 Vdc
isolation resistance 10 MΩ
RoHS 2011/65/EU (CE)
ENVIRONMENTAL
parameter conditions/description min typ max units
operating temperature see derating curve -40 85 °C
storage temperature -55 105 °C
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3D Model Product Page 4.23 107.5 4.09 104.0 of.» mm.m on. 2.: @0044 2.76 70.0 Jumper 1.50 38.0
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CUI Inc SERIES: VHK100W DESCRIPTION: DC-DC CONVERTER date 12/16/2013 page 3 of 8
2.76[
70
.0]
4.006[
101.76
]
4.09[
104
.0]
4.23[
107.5
]
3.58[
91
.0]
Jumper
1.50[
38
.0]
MECHANICAL
parameter conditions/description min typ max units
dimensions 4.23 x 4.01 x 1.50 (107.5 x 101.76 x 38.0 mm) inch
case material steel and aluminum extrusion
weight 502 g
MECHANICAL DRAWING
PIN CONNECTIONS
PIN FUNCTION
1-Vo
2-S
3 trim
4 +S
5+Vo
6 case
7 on/off
8 -Vin
9 +Vin
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
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CUI Inc SERIES: VHK100W DESCRIPTION: DC-DC CONVERTER date 12/16/2013 page 4 of 8
DERATING CURVES
0%
20%
40%
60%
80%
100%
120%
-40 45 50 55 60 65 70 75 80 85
Ambient Temperature - degrees C
Relative Output Power - % of nominal output
Natural
Convection
0.5 m/S
(100LFM)
1.0 m/S
(200LFM)
1.5 m/S
(300LFM)
2.0 m/S
(400LFM)
2.5 m/S
(500LFM)
3.0 m/S
(600LFM)
3.5 m/S
(700LFM)
EMC RECOMMENDED CIRCUITS
Figure 1
Figure 2
Recommended Circuit for EN55022 Class A
(for all models)
EN55022 CLASS A
Table 1
TEST CONFIGURATION
C1 Cin
L1
To Oscilloscope
+Vin
-Vin
+Vo
-Vo
R-Load
Vi
n
+
-
Note: Input reflected-ripple current is measured with an inductor L1 and Capacitor C1 to simulate source impedance.
External components
L1 12μH
C1 220μF, ESR < 0.1Ω at 100 KHz
Cin 33μF, ESR < 0.7Ω at 100 KHz
DC/DC Converter
+Vo
-Vo
+Vin
C1
-Vin
C2
+Vo
-Vo
+Vin
-Vin
-S
+S
L1
VHK100W Power Derating Curves At Nominal Input
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CUI Inc SERIES: VHK100W DESCRIPTION: DC-DC CONVERTER date 12/16/2013 page 5 of 8
EMC RECOMMENDED CIRCUITS (CONTINUED)
Table 2
Class A Recommended Components
Model C11 C21L1
VHK100W-Q24-S3R3 47 μF/50 V 47 μF/50 V 3.4 μH
VHK100W-Q24-S5 47 μF/50 V 47 μF/50 V 3.4 μH
VHK100W-Q24-S12 47 μF/50 V 47 μF/50 V 3.4 μH
VHK100W-Q24-S15 47 μF/50 V 47 μF/50 V 3.4 μH
VHK100W-Q24-S24 47 μF/50 V 47 μF/50 V 3.4 μH
VHK100W-Q24-S28 47 μF/50 V 47 μF/50 V 3.4 μH
VHK100W-Q24-S48 47 μF/50 V 47 μF/50 V 3.4 μH
VHK100W-Q48-S3R3 47 μF/100 V 47 μF/100 V 3.4 μH
VHK100W-Q48-S5 47 μF/100 V 47 μF/100 V 3.4 μH
VHK100W-Q48-S12 47 μF/100 V 47 μF/100 V 3.4 μH
VHK100W-Q48-S15 47 μF/100 V 47 μF/100 V 3.4 μH
VHK100W-Q48-S24 47 μF/100 V 47 μF/100 V 3.4 μH
VHK100W-Q48-S28 47 μF/100 V 47 μF/100 V 3.4 μH
VHK100W-Q48-S48 47 μF/100 V 47 μF/100 V 3.4 μH
Note: 1. Aluminum capacitors
EN55022 CLASS A
Figure 3
Recommended Circuit for EN55022 Class B
(for all 3.3, 5, 12, 15, 24, & 28 Vdc output models)
EN55022 CLASS B
DC/DC Converter
+Vo
-Vo
+Vin
C1
-Vin
C2
+Vo
-Vo
+Vin
-Vin
-S
+S
L1
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EMC RECOMMENDED CIRCUITS (CONTINUED)
Figure 4
Recommended Circuit for EN55022 Class B
(for all 48 Vdc output models)
EN55022 CLASS B
DC/DC Converter
+Vo
-Vo
+Vin
C1
-Vin
C2
+Vo
-Vo
CASE
+Vin
-Vin
-S
+S
L1
C3
Table 3
Class B Recommended Components
Note: 1. Aluminum capacitors
2. Ceramic capacitors
Model C11 C21C32L1
VHK100W-Q24-S3R3 220 μF/50 V 220 μF/50 V NC 3.4 μH
VHK100W-Q24-S5 220 μF/50 V 220 μF/50 V NC 3.4 μH
VHK100W-Q24-S12 220 μF/50 V 220 μF/50 V NC 3.4 μH
VHK100W-Q24-S15 220 μF/50 V 220 μF/50 V NC 3.4 μH
VHK100W-Q24-S24 220 μF/50 V 220 μF/50 V NC 3.4 μH
VHK100W-Q24-S28 220 μF/50 V 220 μF/50 V NC 3.4 μH
VHK100W-Q24-S48 100 μF/50 V 100 μF/50 V 2200 pF/2 KV 0.53 mH
VHK100W-Q48-S3R3 47 μF/100 V 47 μF/100 V NC 3.4 μH
VHK100W-Q48-S5 47 μF/100 V 47 μF/100 V NC 3.4 μH
VHK100W-Q48-S12 47 μF/100 V 47 μF/100 V NC 3.4 μH
VHK100W-Q48-S15 47 μF/100 V 47 μF/100 V NC 3.4 μH
VHK100W-Q48-S24 47 μF/100 V 47 μF/100 V NC 3.4 μH
VHK100W-Q48-S28 47 μF/100 V 47 μF/100 V NC 3.4 μH
VHK100W-Q48-S48 47 μF/100 V 47 μF/100 V 2200 pF/2 KV 0.53 mH
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APPLICATION NOTES
1. Output Voltage Trimming
Leave open if not used.
Table 4
Vout
(Vdc)
R1
(KΩ)
R2
(KΩ)
R3
(KΩ)
Vr
(V)
Vf
(V)
3.3 3 12 4.3 1.24 0.46
5 2.32 3.3 0 2.5 0
12 9.1 51 5.1 2.5 0.46
15 12 56 8.25 2.5 0.46
24 20 100 7.5 2.5 0.46
28 23.7 150 6.2 2.5 0.53
48 36 270 5.1 2.5 0.46
+Vin
R trim-up
R-Load
Trim
+Vo
+Sense
+Sense
-Sense
-Sense
-Vin -Vo
Trim up
+Vin
-Vin -Vo
+Vo
R trim-down
R-Load
Trim
Trim dow
n
R1(Vr - Vf ( ))
Rtrim - up = ( ) - (KΩ)
R
trim - down = - R2 (KΩ)
Vo - Vo, nom
R
2
R2 + R3
R2 + R3
R2R3
R1(Vo - Vr)
V
o, nom
- V
o
Figure 5
Formula for Trim ResistorApplication Circuit for Trim pin
Note: 1. All specifications are measured at Ta=25°C, nominal input voltage and full output load unless otherwise specified.
Note: Rtrim-up is the external resistor in KΩ
Rtrim-down is the external resistor in KΩ
VO, nom is the nominal output voltage
VO is the desired output voltage
R1, R2, R3, and Vr are internal (see Table 4).
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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.
Headquarters
20050 SW 112th Ave.
Tualatin, OR 97062
800.275.4899
Fax 503.612.2383
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techsupport@cui.com
rev. description date
1.0 initial release 10/11/2006
1.01 new template applied 12/21/2011
1.02 misc. updates and corrections 03/13/2012
1.03 updated mechanical drawing 03/27/2012
1.04 V-Infinity branding removed 06/27/2012
1.05 updated spec 03/14/2013
1.06 added trimming and EMI information 12/16/2013
The revision history provided is for informational purposes only and is believed to be accurate.
REVISION HISTORY
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