rev.
page
page
1 of 11
date 08/2009
date
PART NUMBER: VHK50W
DESCRIPTION: chassis mount dc-dc converter
description
features
The VHK50W series of rugged DC-DC
converters are designed for high
reliability applications, featuring integral
heat sink, over-temperature protection,
over-current protection and input
transient voltage protection. With an
external input fuse, the converter can
protect accidental input polarity reversal.
The wide 4:1 input range (9-36V or 18-
75V) is very useful to stabilize an input
source like batteries in various
·25-50W isolated output
·Efficiency to 83%
·RoHS Compliant
·4:1 input range
·Regulated output
·Continuous short circuit
protection
·Metal enclosure with integrated
heatsink
·Rugged design
discharging and charging conditions.
Additionally, high efficiency, fast
response, tight regulations, remote sense
and remote On/Off control make these
converters very useful in many industrial
and communications applications.
·Over-temperature shutdown
MODEL
input voltage
output
voltage
(V dc)
output
input current
2
efficiency
1
2
3
nominal
(V dc)
range
(V dc)
current
(A)
no load
full load
(mA)
typ.
(mA)
50
50
50
50
50
50
50
50
50
50
50
50
50
50
(%)
75
79
82
82
82
82
82
76
80
83
83
83
83
83
VHK50W-Q24-S3R3
VHK50W-Q24-S5
VHK50W-Q24-S12
VHK50W-Q24-S15
VHK50W-Q24-S24
VHK50W-Q24-S28
VHK50W-Q24-S48
VHK50W-Q48-S3R3
VHK50W-Q48-S5
VHK50W-Q48-S12
VHK50W-Q48-S15
VHK50W-Q48-S24
VHK50W-Q48-S28
VHK50W-Q48-S48
24
24
24
24
24
24
24
48
48
48
48
48
48
48
9.0~36.0
9.0~36.0
9.0~36.0
9.0~36.0
9.0~36.0
9.0~36.0
9.0~36.0
18.0~75.0
18.0~75.0
18.0~75.0
18.0~75.0
18.0~75.0
18.0~75.0
18.0~75.0
3.3
5
10
10
1833
2637
2537
2538
2537
2537
2537
905
1302
1267
1265
1264
1264
1253
12
15
24
28
48
3.3
5
12
15
24
28
48
4.16
3.33
2.08
1.78
1.04
10
10
4.16
3.33
2.08
1.78
1.04
notes:
1. see output derating curves (page 4)
2. input currents are measured at nominal input voltage
3. efficiency is measured at nominal line, full load
INPUT
parameter
conditions/description
min
9
18
nom
24
48
8.8
8
max
36
75
units
V dc
V dc
V dc
V dc
V dc
V dc
input voltage range
under voltage lockout
24 Vin power up
24 Vin power down
48 Vin power up
48 Vin power down
section 15 in the application notes
PI type
17
16
remote on/off control4
input filter
notes:
4. add suffix “N” to the model number for negative logic on/off control
*V-Infinity reserves the right to make changes to its products or to discontinue any product or service without notice, and to advise customers to verify the most up-to-
date product information before placing orders. V-Infinity assumes no liability or responsibility for customer’s applications using V-Infinity products other than repair
or replacing (at V-I’s option) V-Infinity products not meeting V-I’s published specifications. Nothing will be covered outside of standard product warranty.
th
20050 SW 112 Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2383 www.v-infinity.com