Datasheet

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date
03/18/2013
page
1 of 4
SERIES: VQB75W │ DESCRIPTION: DC-DC CONVERTER
FEATURES
•
•
•
•
•
up to 75 W isolated output
4:1 input range (9~36 V, 18~75 V)
single output from 3.3~24 V
1,500 V isolation
over current, over temperature, over voltage,
and short circuit protections
• remote on/off
• efficiency up to 87%
RoHS
MODEL
input
voltage
output
voltage
output
current
output
power
ripple
and noise1
efficiency
range
(Vdc)
(Vdc)
max
(A)
max
(W)
max
(mVp-p)
typ
(%)
VQB75W-Q24-S3R3
9 ~ 36
3.3
12
40
100
81
VQB75W-Q24-S5
9 ~ 36
5
12
60
100
84
VQB75W-Q24-S12
9 ~ 36
12
6.25
75
150
86
VQB75W-Q24-S15
9 ~ 36
15
5
75
150
86
VQB75W-Q24-S24
9 ~ 36
24
3.12
75
240
86
VQB75W-Q48-S3R3
18 ~ 75
3.3
12
40
100
82
VQB75W-Q48-S5
18 ~ 75
5
12
60
100
85
VQB75W-Q48-S12
18 ~ 75
12
6.25
75
150
86
VQB75W-Q48-S15
18 ~ 75
15
5
75
150
87
VQB75W-Q48-S24
18 ~ 75
24
3.12
75
240
87
Notes:
1. ripple and noise are measured at 20 MHz BW with 10µF tantalum capacitor and 1µF ceramic capacitor across output
PART NUMBER KEY
VQB75W - QXX - SXX X
Base Number
Input Voltage
Output Voltage
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Remote On/Off Control
"blank" = positive logic
N = negative logic
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CUI Inc │ SERIES: VQB75W │ DESCRIPTION: DC-DC CONVERTER
date 03/18/2013 │ page 2 of 4
INPUT
parameter
conditions/description
operating input voltage
under voltage lockout
power up
power down
24
48
24
48
V
V
V
V
min
typ
max
units
9
18
24
48
36
75
Vdc
Vdc
input
input
input
input
8.8
17
8
16
Vdc
Vdc
Vdc
Vdc
remote on/off1
filter
Notes:
PI type
1. logic compatibility, open collector ref to -input
for positive logic
Module ON, >3.5~75 Vdc or open circuit
Module OFF, <1.8 Vdc
OUTPUT
parameter
conditions/description
line regulation
load regulation
min
typ
max
units
measured from high line to low line
±0.2
%
measured from full load to zero load
±0.2
%
±1.5
%
500
µs
%Vout
voltage accuracy
transient response
75~100% step load change
recovery time
error band
±5
adjustability2
switching frequency
100% load, input voltage range
temperature coefficient
Notes:
±10
%
300
kHz
±0.03
%/°C
2. trim-up: connect a resistor between the trim pin and -Sense
trim-down: connect a resistor between the trim pin and +Sense
PROTECTIONS
parameter
conditions/description
min
max
units
over voltage protection
%Vo
115
typ
140
%
over current protection
% nominal output current
110
140
%
short circuit protection
continuous
max
units
SAFETY AND COMPLIANCE
parameter
conditions/description
isolation voltage
input to output
input to case
output to case
isolation resistance
tested at 500 Vdc
RoHS compliant
yes
min
typ
1,500
1,500
1,500
Vdc
Vdc
Vdc
100
MΩ
ENVIRONMENTAL
parameter
conditions/description
min
case operating temperature
-40
storage temperature
-55
thermal shutdown case temp.
typ
105
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max
units
100
°C
105
°C
°C
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CUI Inc │ SERIES: VQB75W │ DESCRIPTION: DC-DC CONVERTER
date 03/18/2013 │ page 3 of 4
MECHANICAL
parameter
conditions/description
dimensions
36.8 x 57.90 x 12.70 (1.449 x 2.280 x 0.500 inch)
min
case material
aluminum baseplate, plastic case
typ
max
units
mm
MECHANICAL DRAWING
units: mm[inch]
tolerance:
X.X = ±0.5mm
X.XX = ±0.25mm
57.90 2.280
36.80 1.449
12.70 0.500
4.10 0.161
(TYP)
50.80 2.000
PIN CONNECTIONS
M3X0.5 THROUGH
(4 PLCS)
47.20 1.858
1.50 0.059
(2 PLCS)
1.02 0.040
(6 PLCS)
26.02 1.024
3
18.40 0.724
2
10.78 0.424
0 0.000
Note:
1
4
5
6
7
8
PIN
FUNCTION
1
+Vin
2
on/off
31.50 1.240
3
-Vin
26.02 1.024
22.21 0.874
4
-Vo
5
-S
14.59 0.574
10.78 0.424
6
trim
7
+S
5.30 0.209
0 0.000
8
+Vo
All specifications measured at 25°C, nominal input voltage, and full load unless otherwise noted.
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CUI Inc │ SERIES: VQB75W │ DESCRIPTION: DC-DC CONVERTER
date 03/18/2013 │ page 4 of 4
REVISION HISTORY
rev.
description
date
1.0
initial release
12/04/2008
1.01
updated mechanical drawing
01/08/2009
1.02
V-Infinity branding removed
09/25/2012
updated spec
03/18/2013
1.03
The revision history provided is for informational purposes only and is believed to be accurate.
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Tualatin, OR 97062
800.275.4899
Fax 503.612.2383
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[email protected]
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