VHB200W-Q48-S12 CUI Inc, VHB200W-Q48-S12 Datasheet - Page 7

• Manufacturer Part Number: VHB200W-Q48-S12
• Description: CONVERTER DC/DC 12V 16.7A 200W
• Manufacturer: CUI Inc
• Series: V-Infinity VHB200Wr
• Type: Isolatedr

Specifications of VHB200W-Q48-S12

• Output: 12V
• Number Of Outputs: 1
• Power (watts): 200W
• Mounting Type: Through Hole
• Voltage - Input: 18 ~ 75V
• Package / Case: 9-DIP Module
• 1st Output: 12 VDC @ 16.7A
• Size / Dimension: 2.40" L x 2.28" W x 0.52" H (61mm x 57.9mm x 13.2mm)
• Power (watts) - Rated: 200W
• Operating Temperature: -40°C ~ 100°C
• Efficiency: 88%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• 3rd Output: -
• 2nd Output: -
• 4th Output: -
• Other names: 102-1992; Q3896225; VHB200W-Q48-S12

PART NUMBER: VHB200W
8. OUTPUT OCP AND SHORT-CIRCUIT PROTECTION
Output overload and short circuit conditional will cause the output voltage to decline or shutdown altogether.
is not over 110°C, the output recovers automatically when the short or OCP conditions are removed. In the case of slight overloading,
the output voltage may not shut down, but the converter may build up heat over time, causing over-temperature shutdown.
9. OVER-TEMPERATURE PROTECTION
When the case temperature reaches about 110°C, the converter's built-in protection circuit will shut down the output. When the
temperature is reduced enough to a safe operating level, the converter will recover to normal operations automatically.
10. OUTPUT OVP
In case the output voltage exceeds the OVP threshold, the converter shuts down.
11. OUTPUT PARALLEL CONNECTIONS
The converter is not designed for load share on the output. However, for redundancy, the outputs of two or more converters can be
connected in parallel through OR-ing diodes, as shown below.
12. OUTPUT SERIES CONNECTIONS
Two or more converters can be connected in series to obtain a higher output voltage. To prevent output reverse biasing each other in
case of a short, add a Schottky diode on each output in reverse polarity, as shown in the diagram. In the event of a short, the con-
verters will forward-bias the diodes and the output reversal will be limited to one diode drop (about 0.5V) only, so as not to damage
the converters. The forward current will cause each converter to go into short-circuit protection.
sure that: 1) the diodes voltage rating is higher than each converter output; 2) the rated diode current can carry the short-circuit cur-
rent; 3) the diodes do not overheat before the short is removed.
20050 SW 112
FIGURE 6. OUTPUT
PARALLEL CONNECTIONS
FIGURE 7. OUTPUT
SERIES CONNECTIONS
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Ave. Tualatin, Oregon 97062
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DESCRIPTION: half-brick dc-dc converter
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For proper diode selection, make
If the case temperature
page
date
07/2009
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