VHB75W_11 Datasheet, PDF (1/10 Pages) CUI INC – half-brick dc-dc converter

PART NUMBER: VHB75W
rev.
p^pa^ag^ge^{e 1 of 10}
d^da^at^te^{e 04/2011}
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
parameter
input voltage range
under voltage lockout
remote on/off control⁴
input filter
notes:
input voltage
nominal
range
(V dc)
(V dc)
24
9.0~36.0
24
9.0~36.0
24
9.0~36.0
24
9.0~36.0
24
9.0~36.0
24
9.0~36.0
48
18.0~75.0
48
18.0~75.0
48
18.0~75.0
48
18.0~75.0
48
18.0~75.0
48
18.0~75.0
output
voltage
(V dc)
3.3
5
12
15
24
48
3.3
5
12
15
24
48
1. see output derating (page 4)
2. input currents are measured at nominal input voltage
3. efficiency is measured at nominal line, full load
output
current ¹
(A)
15
15
6.25
5
3.12
1.56
15
15
6.25
5
3.12
1.56
conditions/description
min
9
18
24 Vin power up
24 Vin power down
48 Vin power up
48 Vin power down
section 15 in the application notes
PI type
4. add suffix “N” to the model number for negative logic on/off control
nom
24
48
8.8
8
17
16
input current
no load²
full load²
(mA)
(mA)
50
2611
50
3811
50
3765
50
3720
50
3720
50
3811
50
1320
50
1905
50
1860
50
1860
50
1860
50
1860
efficiency
typ.³
(%)
79
82
83
84
84
82
80
83
84
85
85
84
max
36
75
units
V dc
V dc
V dc
V dc
V dc
V dc
*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 [phone] fax [phone] www.v-infinity.com