Additional Resources: Product Page | 3D Model
datdatee 12/16/201312/16/2013
pagepage 1 of 71 of 7
SERIES: VHK200W DESCRIPTION: DC-DC CONVERTER
FEATURES
up to 200 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 protections
remote on/off
efficiency up to 88%
input output output output ripple efficiency
MODEL
1
voltage voltage current power and noise
range max max max typ
(Vdc) (Vdc) (A) (W) (mVp-p) (%)
VHK200W-Q24-S12 10 ~ 36 12 16.7 200 150 84
VHK200W-Q24-S15 10 ~ 36 15 13.3 200 150 84
VHK200W-Q24-S24 10 ~ 36 24 8.3 200 240 84
VHK200W-Q24-S28 10 ~ 36 28 7.14 200 280 87
VHK200W-Q24-S48 10 ~ 36 48 4.2 200 480 87
VHK200W-Q48-S12 18 ~ 75 12 16.7 200 150 86
VHK200W-Q48-S15 18 ~ 75 15 13.3 200 150 86
VHK200W-Q48-S24 18 ~ 75 24 8.3 200 240 86
VHK200W-Q48-S28 18 ~ 75 28 7.14 200 280 87
VHK200W-Q48-S48 18 ~ 75 48 4.2 200 480 88
Note: 1. Ripple and noise are measured at full load, 20 MHz BW with 10F tantalum capacitor and 1F ceramic capacitor across output. The 48 Vdc output models require a 10uF
aluminum capacitor and 1uF ceramic capacitor across the output.
2. An external input capacitor of 470F for 24 Vdc input models and 47F for 48 Vdc input models is recommended to reduce input ripple voltage.
PART NUMBER KEY
VHK200W - QXX - SXX X
Base Number Input Voltage Output Voltage Remote On/Off Controlblan = positive logic
N = negative logic
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CUI Inc SERIES: VHK200W DESCRIPTION: DC-DC CONVERTER date 12/16/2013 page 2 of 7
INPUT
parameter conditions/description min typ max units
24 Vdc input models 10 24 36 Vdc
operating input voltage
48 Vdc input models 18 48 75 Vdc
power up 9.5 Vdc
24 Vdc input
power down 8.5 Vdc
under voltage shutdown
power up 17 Vdc
48 Vdc input
power down 16 Vdc
models ON (>3.5 Vdc or open circuit)
positive logic
models OFF (0~1.2 Vdc)
1
CTRL
models ON (0~1.2 Vdc)
negative logic
models OFF (>3.5 Vdc or open circuit)
filter pi filter
40A time delay fuse for 24 Vin models,
input fuse
20A time delay fuse for 48 Vin models
Note: 1. Open collector refer to -Vin
OUTPUT
parameter conditions/description min typ max units
12, 15, & 24 V output models 2,200 F
maximum capacitive load 28 V output models 100 2,200 F
48 V output models 47 2,200 F
2
line regulation measured from low line to high line 0.2 %
2
load regulation measured from zero load to full load 0.2 %
voltage accuracy 1.5 %
adjustability 10 %
switching frequency 250 kHz
transient response 25% step load change 500 s
temperature coefficient 0.03 %/C
Note: 2. A 100 F aluminum capacitor is required on the output for the 28 Vdc output models. A 47 F 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 at 90% output voltage 110 160 %
over voltage protection 115 140 %
over temperature protection shutdown 110 C
SAFETY AND COMPLIANCE
parameter conditions/description min typ max units
for 1 minute: input to output; input to case;
isolation voltage 1,500 Vdc
output to case
isolation resistance 10 M
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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