VHK200W-Q48-S28 CUI Inc, VHK200W-Q48-S28 Datasheet - Page 5

• Manufacturer Part Number: VHK200W-Q48-S28
• Description: CONVERTER DC-DC 28V 7.14A 200W
• Manufacturer: CUI Inc
• Series: V-Infinity VHK200Wr
• Type: Isolatedr

Specifications of VHK200W-Q48-S28

• Output: 28V
• Number Of Outputs: 1
• Power (watts): 200W
• Mounting Type: Chassis Mount
• Voltage - Input: 18 ~ 75V
• Package / Case: Module
• 1st Output: 28 VDC @ 7.14A
• Size / Dimension: 4.23" L x 4.01" W x 1.50" H (107.4mm x 101.9mm x 38.1mm)
• Power (watts) - Rated: 200W
• Operating Temperature: -40°C ~ 100°C
• Efficiency: 87%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• 3rd Output: -
• 2nd Output: -
• 4th Output: -
• Other names: 102-2025

PART NUMBER: VHK200W
2. INPUT VOLTAGE RANGE
It is important to ensure the input voltage measured at the converter input pins is within the range for that converter. Make sure wire
losses and voltage ripples are accounted for. One possible problem is driving the converter with a linear unregulated power supply.
For example, if the average voltage measured by a DMM is 9V, with a voltage ripple of 3Vpp, the actual input can swing from 7.5V to
10.5V. This will be outside the specified input range of 10-36V and the converter may not function properly. On the other end, make
sure the actual input voltage does not exceed the highest voltage of 36V or 75V.
3. LEAD WIRES
Make sure the input and output wires are of adequate AWG size to minimize voltage drop, and ensure the voltage across the input
terminals is above the converter's rated minimum voltage at all times. It is recommended to have the wire pairs twisted, respectively
for the input pair and the output pair, so as to minimize noise pickup.
20050 SW 112
120%
100%
80%
60%
40%
20%
0%
-40
th
Ave. Tualatin, Oregon 97062
15
20
VHK200W-Q48 Power Derating Curves @ Nominal Input
25
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FIGURE 1b. OUTPUT DERATING (48 V)
35
Ambient Temperature - degrees C
40
phone
phone [phone] fax
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DESCRIPTION: chassis mount dc-dc converter
50
55
60
fax [phone]
65
70
75
80
www.v-infinity.com
85
page
date
Natural
Convection
0.5 m/S
(100LFM)
1.0 m/S
(200LFM)
1.5 m/S
(300LFM)
2.0 m/S
(400LFM)
2.5 m/S
(500LFM)
3.0 m/S
(600LFM)
3.5 m/S
(700LFM)
08/2009
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