VHK200W-Q24-S12 CUI Inc, VHK200W-Q24-S12 Datasheet - Page 7

• Manufacturer Part Number: VHK200W-Q24-S12
• Description: CONVERTER DC-DC 12V 16.7A 200W
• Manufacturer: CUI Inc
• Series: V-Infinity VHK200Wr
• Type: Isolatedr

Specifications of VHK200W-Q24-S12

• Output: 12V
• Number Of Outputs: 1
• Power (watts): 200W
• Mounting Type: Chassis Mount
• Voltage - Input: 10 ~ 36V
• Package / Case: Module
• 1st Output: 12 VDC @ 16.7A
• Size / Dimension: 4.23" L x 4.01" W x 1.50" H (107.5mm x 101.8mm x 38mm)
• Power (watts) - Rated: 200W
• Operating Temperature: -40°C ~ 100°C
• Efficiency: 84%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• 3rd Output: -
• 2nd Output: -
• 4th Output: -
• Other names: 102-1890

PART NUMBER: VHK200W
The value of R
Where: R
nominal output voltage. V
and C values are defined in Table 1. For example, to trim-
down the 24V module (VHK200W-Q24-S24) by 8% to
22.08V, R
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. Care should be
taken to ensure that the maximum ouput power of the module remains at or below the maximum rated power (Maximum rate power =
V
To trim the output voltage with fixed resistors, the output voltage can be calculated as follows.
o,set
FIGURE 4: TRIM-DOWN VOLTAGE SETUP
FIGURE 3. TRIMMING WITH
EXTERNAL POTENTIOMETER
x l
20050 SW 112
o,max).
trim-down
trim-down
trim-down
R
trim-down
R
is the external resistor in K Ω . V
%
is calculated:
trim-down
Trim-Down
+Vin
-Vin
R
B = 511, C = 10.22
trim-down
is defined as:
th
V
=
o
Ave. Tualatin, Oregon 97062
o,nom
V
is the desired output voltage. B
Δ% = 8
o,nom
B
511
%
= 53.66 KΩ
8
- V
Trim
+Vo
o
-Vo
- 10.22 KΩ
+S
-S
C
Table 1
x 100
R trim-down
o,nom
Voltage(V)
24, 28V
Output
12, 15,
48V
is the
+Vin
-Vin
R load
phone
phone [phone] fax
5.11
20
A
Trim
+Vo
DESCRIPTION: chassis mount dc-dc converter
-Vo
+S
-S
2000
511
B
The value of R
Where: R
nominal output voltage. V
B and C values are defined in Table 1. For example, to trim-
down the 24V module (VHK200W-Q24-S24) by 8% to
25.92V, R
FIGURE 5: TRIM-UP VOLTAGE SETUP
47KΩ
10KΩ
Trimpot
470KΩ
10.22
40
R
C
R
trim-up
trim-up
fax [phone]
trim-up
trim-up
=
R load
+Vin
-Vin
Trim-Up
trim-up
is the external resistor in K Ω . V
is calculated:
%
A(V
511 (25.92) (100 + 8)
A = 5.11, B = 511, C = 10.22
1.225 x Δ%
is defined as:
o
)(100+Δ%)
R
1.225 + 8
trim-up
V
V
o
o
Trim
+Vo
o,nom
- V
-Vo
is the desired output voltage. A,
+S
-S
Δ% = 8
= 1476.55 KΩ
o,nom
www.v-infinity.com
-
Δ%
B
x 100
-
page
date
R trim-up
511
- C
8
- 10.22
08/2009
7 of 10
o,nom
R load
is the
KΩ