VHB150W-Q48-S12 CUI Inc, VHB150W-Q48-S12 Datasheet - Page 6
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VHB150W-Q48-S12
Manufacturer Part Number
VHB150W-Q48-S12
Description
CONVERTER DC/DC 150W 12V 12.5A
Manufacturer
CUI Inc
Series
V-Infinity VHB150Wr
Type
With Remote On/Off and UVLOr
Datasheet
1.VHB150W-Q48-S12.pdf
(9 pages)
Specifications of VHB150W-Q48-S12
Voltage - Input (min)
18V
Voltage - Input (max)
75V
Number Of Outputs
1
Power (watts) - Manufacture Series
150W
Power (watts) - Max
150W
1st Output
12 VDC @ 12.5A
2nd Output
-
3rd Output
-
Voltage - Isolation
1.5kV (1500V)
Mounting Type
Through Hole
Package / Case
9-DIP Module, 1/2 Brick
Size / Dimension
2.40" L x 2.28" W x 0.52" H (61mm x 57.9mm x 13.2mm)
Operating Temperature
-40°C ~ 100°C
Efficiency
90%
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
102-2262
VHB150W-Q48-S12
VHB150W-Q48-S12
PART NUMBER: VHK150W
9. OUTPUT TRIMMING (OPTIONAL)
The output voltages are preset to nominal values as indicated by the models table at the factory. If desired, the output voltage may
optionally be trimmed to a different value (+/- 10%) with external resistors and/or potentiometer as shown below.
To trim the output voltage with fixed resistors, the output voltage can be calculated as follows.
R1 and R2 are internal to the unit and are defined in Table 1.
the nominal output voltage. Vo is the desired output voltage.
For example, to trim-up the output voltage of 5.0V module
(VHK150W-Q48-S5) by 8% to 5.4V, R
Where: R
20050 SW 112
Vo – Vo,nom = 5.4 – 5.0 = 0.4V
FIGURE 4: TRIM-UP VOLTAGE SETUP
R
trim-up
FIGURE 3. TRIMMING WITH
EXTERNAL POTENTIOMETER
1
The value of R
=
= 5.8 kΩ
+Vin
-Vin
=
=
is the external resistor in KΩ. Vo,nom is
(R
(5.8 3.3
(R
Voltage(V)
th
Output
1
3.3V
12V
15V
24V
1
5V
−
Ave. Tualatin, Oregon 97062
−
Trim-Up
−
as follows:
(
R
(
R
(
Vo –Vo,nom
Vo –Vo,nom
5.4
2
2
trim-up
×
×
Trim
(
+Vo
–
(
×
-Vo
(Kohm)
Vo –Vo,nom
18.945
25.189
41.442
+S
Vo –Vo,nom
3.168
-S
5
(
5.8
R1
R
is defined as:
5.4
)
2
= 3.3 kΩ
–
)
5
trim-up
(Kohm)
4.636
7.191
6.977
)
))
7.2
3.3
R2
))
R trim-up
is calculated
=
))
(k Ω
+Vin
-Vin
9.18kΩ
(k Ω
)
phone
phone 503.612.2300 fax
)
R load
Trim
+Vo
DESCRIPTION: chassis mount dc-dc converter
-Vo
+S
-S
R1 and R2 are internal to the unit and are defined in Table 2.
For example, to trim-down the output voltage of 5.0V module
the nominal output voltage. Vo is the desired output voltage.
(VHK150W-Q48-S5) by 8% to 4.6V, R
Where: R
FIGURE 5: TRIM-DOWN VOLTAGE SETUP
10KΩ
Trimpot
R
trim-down
Vo,nom – Vo = 5.0 – 4.6 = 0.4V
The value of R
fax 503.612.2383
1
=
= 5.8 kΩ
+Vin
-Vin
=
is the external resistor in KΩ. Vo,nom is
(5.8 5.32
Voltage(V)
(R
Output
3.3V
Trim-Down
12V
15V
24V
1
R load
5V
=
−
−
as follows:
(
(R
R
Vo,nom
(
trim-down
2
5
×
1
Trim
+Vo
–
−
-Vo
(
+S
(Kohm)
Vo,nom
-S
4.6
86.45
(
R
6.18
150
430
×
5.8
R1
Vo,nom
R
2
(
is defined as:
)
–
×
2
www.v-infinity.com
5
Vo
= 5.32 kΩ
(
–
Vo,nom
trim-down
4.6
(Kohm)
)
–
5.62
60.1
120
page
date
Vo
R2
15
68
))
–
R trim-down
Vo
))
is calculated
=
)
–
(k Ω
08/2009
11.2kΩ
6 of 9
Vo
))
)
R load
(k Ω
)