rev.
page
page
date
date
1 of 10
04/2011
PART NUMBER:
VHB75W
DESCRIPTION:
half-brick dc-dc converter
description
The VHB75W series of DC-DC converters
are designed for high reliability
applications, featuring over-temperature
protection, over-current protection. The
wide 4:1 input range (9-36V or 18-75V) is
very useful to stabilize an input source
like batteries in various 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 applications.
features
·37.5-75W isolated output
·Efficiency to 85%
·300 kHz switching frequency
·regulated output
·continuous short circuit
protection
·industry standard half-brick size
·remote on/off
·over-temperature protection
·over-current protection
MODEL
VHB75W-Q24-S3R3
VHB75W-Q24-S5
VHB75W-Q24-S12
VHB75W-Q24-S15
VHB75W-Q24-S24
VHB75W-Q24-S48
VHB75W-Q48-S3R3
VHB75W-Q48-S5
VHB75W-Q48-S12
VHB75W-Q48-S15
VHB75W-Q48-S24
VHB75W-Q48-S48
notes:
input voltage
nominal
range
(V dc)
(V dc)
output
voltage
(V dc)
output
current
1
(A)
input current
no load
2
full load
2
(mA)
(mA)
efficiency
typ.
3
(%)
24
24
24
24
24
24
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
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
12
15
24
48
3.3
5
12
15
24
48
15
15
6.25
5
3.12
1.56
15
15
6.25
5
3.12
1.56
50
50
50
50
50
50
50
50
50
50
50
50
2611
3811
3765
3720
3720
3811
1320
1905
1860
1860
1860
1860
79
82
83
84
84
82
80
83
84
85
85
84
1. see output derating (page 4)
2. input currents are measured at nominal input voltage
3. efficiency is measured at nominal line, full load
INPUT
parameter
input voltage range
under voltage lockout
24 Vin power up
24 Vin power down
48 Vin power up
48 Vin power down
remote on/off control
4
input filter
notes:
conditions/description
min
9
18
nom
24
48
8.8
8
17
16
max
36
75
units
V dc
V dc
V dc
V dc
V dc
V dc
section 15 in the application notes
PI type
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.
20050
SW
112
th
Ave. Tualatin, Oregon
97062
phone
503.612.2300
fax
503.612.2383
www.v-infinity.com
CUI [ CUI INC ]
