Additional Resources: Product Page | 3D Model
datdatee 06/18/2015
pagepage 1 of 81 of 8
SERIES: VHK150W DESCRIPTION: DC-DC CONVERTER
FEATURES
up to 150 W isolated output
rugged metal enclosure with integrated heat sink
4:1 input range (9~36 Vdc, 18~75 Vdc)
single output from 5~48 Vdc
1,500 Vdc isolation
over current, over temperature, over voltage,
and short circuit protections
remote on/off
efficiency up to 90%
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) (%)
VHK150W-Q24-S5 9 ~ 36 5 25 125 100 87
VHK150W-Q24-S12 9 ~ 36 12 12.5 150 150 86
VHK150W-Q24-S15 9 ~ 36 15 10 150 150 86
VHK150W-Q24-S24 9 ~ 36 24 6.5 156 240 86.5
VHK150W-Q24-S28 9 ~ 36 28 5.4 150 280 87
VHK150W-Q24-S48 9 ~ 36 48 3.12 150 480 84
VHK150W-Q48-S5 18 ~ 75 5 25 125 100 90
VHK150W-Q48-S12 18 ~ 75 12 12.5 150 150 88
VHK150W-Q48-S15 18 ~ 75 15 10 150 150 88
VHK150W-Q48-S24 18 ~ 75 24 6.5 156 240 87.5
VHK150W-Q48-S28 18 ~ 75 28 5.4 150 280 89
VHK150W-Q48-S48 18 ~ 75 48 3.12 150 480 87
Note: 1. Ripple and noise are measured at full load, 20 MHz BW with 10F tantalum capacitor and 1F ceramic capacitor across output.
PART NUMBER KEY
VHK150W - 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: VHK150W DESCRIPTION: DC-DC CONVERTER date 06/18/2015 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
30A time delay fuse for 24 Vin models,
input fuse
15A time delay fuse for 48 Vin models
Note: 1. Open collector refer to -Vin
OUTPUT
parameter conditions/description min typ max units
5 V output models 30,000 F
12 V output models 12,500 F
15 V output models 10,000 F
maximum capacitive load
24 V input, 24 & 28 V output models 1,800 F
48 V input, 24 & 28 V output models 2,200 F
48 V output models 47 1,000 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 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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