Datasheet

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date
03/14/2013
page
1 of 4
SERIES: VHB350 │ DESCRIPTION: DC-DC CONVERTER
FEATURES
•
•
•
•
•
•
up to 350 W isolated output
industry standard half brick package
2:1 input range (18~36 V, 36~75 V)
single output from 3.3~28 V
1,500 V isolation
over current, over temperature, over voltage,
and short circuit protections
• remote on/off
• efficiency up to 92.5%
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
(%)
VHB350-D24-S3R3
18 ~ 36
3.3
70
231
100
88
VHB350-D24-S5
18 ~ 36
5
70
350
100
89.5
VHB350-D24-S12
18 ~ 36
12
29.2
350
120
91.5
VHB350-D24-S24
18 ~ 36
24
14.6
350
280
90
VHB350-D24-S28
18 ~ 36
28
12.5
350
280
91
VHB350-D48-S3R3
36 ~ 75
3.3
70
231
100
89
VHB350-D48-S5
36 ~ 75
5
70
350
100
91
VHB350-D48-S12
36 ~ 75
12
29.2
350
120
92.5
VHB350-D48-S24
36 ~ 75
24
14.6
350
280
91.5
VHB350-D48-S28
36 ~ 75
28
12.5
350
280
92.5
Notes:
1. Ripple and noise are measured at 20 MHz BW with 10µF tantalum capacitor and 1µF ceramic capacitor across output
PART NUMBER KEY
VHB350 - DXX - 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: VHB350 │ DESCRIPTION: DC-DC CONVERTER
date 03/14/2013 │ page 2 of 4
INPUT
parameter
conditions/description
operating input voltage
surge voltage1
typ
max
units
18
36
24
48
36
75
Vdc
Vdc
50
Vdc
24 V input
48 V input
power up
24 V input
48 V input
16
34
17
35
18
36
Vdc
Vdc
power down
24 V input
48 V input
15
32
16
33
17
35
Vdc
Vdc
turn on
24 V input
48 V input
38
77
Vdc
Vdc
turn off
24 V input
48 V input
40
80
Vdc
Vdc
under voltage lockout
over voltage protection
positive logic remote on/off
see note 2
filter
PI type
Notes:
min
1. 100 ms max
2. logic compatibility, open collector ref to -input
Module ON, >3.5 to 75 Vdc or open circuit
Module OFF, <1.2 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
%
voltage accuracy
transient response
25% step load change
adjustability3
switching frequency
3.3 and 5 V models
all other models
temperature coefficient
Notes:
±1.5
%
500
µs
±10
%
300
330
kHz
kHz
±0.03
%/°C
3. 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
over voltage protection
%Vo
short circuit protection
continuous
current limit
max
units
115
140
%
105
140
%
thermal shutdown case temp.
typ
110
°C
SAFETY AND COMPLIANCE
parameter
conditions/description
isolation voltage
input to output
input to case
output to case
min
typ
1,500
1,500
1,500
isolation resistance
MΩ
1,000
safety approvals
UL60950-1, EN60950-1
RoHS compliant
yes
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units
Vdc
Vdc
Vdc
10
isolation capacitance
max
pF
For more information, please visit the product page.
CUI Inc │ SERIES: VHB350 │ DESCRIPTION: DC-DC CONVERTER
date 03/14/2013 │ page 3 of 4
ENVIRONMENTAL
parameter
conditions/description
min
case operating temperature
storage temperature
humidity
max
units
-40
typ
100
°C
-55
105
°C
95
%
max
units
non-condensing
MECHANICAL
parameter
conditions/description
dimensions
2.28 x 2.40 x 0.52 inch (57.9 x 61.0 x 13.2 mm)
min
case material
aluminum baseplate with plastic
weight
typ
114
g
MECHANICAL DRAWING
13.20 0.520
57.90 2.280
4.60 0.181 MIN
(TYP)
2.50 0.098
4
35.56 1.400
50.80 2.000
5
3
1.02 0.040
(5 PLCS)
6
7
15.24 0.600
2
61.00 2.402
8
1
9
2.03 0.080
(4 PLCS)
48.20 1.898
BOTTOM VIEW
All dimensions in mm(inches):
Note:
All specifications measured at 25°C, nominal input voltage, and full load unless otherwise noted.
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PIN CONNECTIONS
PIN
FUNCTION
1
+Vin
2
On/Off
3
CASE
4
-Vin
5
-Vo
6
-S
7
TRIM
8
+S
9
+Vo
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CUI Inc │ SERIES: VHB350 │ DESCRIPTION: DC-DC CONVERTER
date 03/14/2013 │ page 4 of 4
REVISION HISTORY
rev.
description
date
1.0
initial release
06/01/2011
1.01
add remote on/off control to the part number key
11/23/2011
1.02
V-Infinity branding removed
08/30/2012
updated spec
03/14/2013
1.03
The revision history provided is for informational purposes only and is believed to be accurate.
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Fax 503.612.2383
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[email protected]
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