Additional Resources: Product Page | 3D Model
datdatee 12/16/201312/16/2013
pagepage 1 of 81 of 8
SERIES: VHK100W DESCRIPTION: DC-DC CONVERTER
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%
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) (%)
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 ~ 75 3.3 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 10F tantalum capacitor and 1F ceramic capacitor across output. The 48 Vdc output models only require
the 1F ceramic capacitor across the output.
PART NUMBER KEY
VHK100W - 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: VHK100W DESCRIPTION: DC-DC CONVERTER date 12/16/2013 page 2 of 8
INPUT
parameter conditions/description min typ max units
24 Vdc input models 9 24 36 Vdc
operating input voltage
48 Vdc input models 18 48 75 Vdc
power up 8.8 Vdc
24 Vdc input
power down 8 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 (0~1.8 Vdc)
1
CTRL
models ON (0~1.8 Vdc)
negative logic
models OFF (>3.5 Vdc or open circuit)
filter pi filter
20A time delay fuse for 24 Vin models,
input fuse
10A time delay fuse for 48 Vin models
Note: 1. Open collector refer to -Vin
OUTPUT
parameter conditions/description min typ max units
3.3 and 5 V output models 20,000 F
12 V output models 8,300 F
maximum capacitive load 15 V output models 6,700 F
24 & 28 V output models 2,200 F
48 V output models 47 470 F
2
line regulation measured from high line to low line 0.2 %
2
load regulation measured from full load to zero load 0.2 %
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 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 % 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
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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