VHB75W-Q24-S12 CUI Inc, VHB75W-Q24-S12 Datasheet - Page 8
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VHB75W-Q24-S12
Manufacturer Part Number
VHB75W-Q24-S12
Description
CONVERTER DC/DC 75W 12V 6.25A
Manufacturer
CUI Inc
Series
V-Infinity VHB75Wr
Type
With Remote On/Off and UVLOr
Datasheet
1.VHB75W-Q24-S12.pdf
(10 pages)
Specifications of VHB75W-Q24-S12
Voltage - Input (min)
9V
Voltage - Input (max)
36V
Number Of Outputs
1
Power (watts) - Manufacture Series
75W
Power (watts) - Max
75W
1st Output
12 VDC @ 6.25A
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 0.50" H (61mm x 57.9mm x 12.7mm)
Operating Temperature
-40°C ~ 100°C
Efficiency
83%
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
102-2250
Q5887922
Q5990267
VHB75W-Q24-S12
Q5887922
Q5990267
VHB75W-Q24-S12
PART NUMBER: VHB75W
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.
13. REMOTE OUTPUT ON/OFF CONTROL
The converter output can be enabled or disabled through the On/Off pin. The control logic is shown in this table. A common control
circuit is shown below. The standard version defaults to positive logic. For negative logic, indicate the selection when ordering.
14. ISOLATION
The input and output of the converter are electrically isolated. If needed, an output terminal can be connected to an input terminal,
resulting in the converter non-isolated.
SW
20050 SW 112
FIGURE 8. REMOTE ON/OFF CONTROL
FIGURE 7. OUTPUT
SERIES CONNECTIONS
REM
REM
-Vin
-Vin
th
Ave. Tualatin, Oregon 97062
SW Open (V
Logic Table
SW Closed (V
+Vo
-Vo
REM
REM
>2.4 V)
<0.8 V) Output on
phone
phone 503.612.2300 fax
+Vin
-Vin
+Vin
-Vin
Negative logic
Output off
High signal here
DESCRIPTION: half-brick dc-dc converter
disable output
+Vo
+Vo
-Vo
-Vo
FIGURE 9. REMOTE ON/OFF CONTROL
WITH TRANSISTOR SWITCH
fax 503.612.2383
Positive logic
Output off
Output on
For proper diode selection, make
SW
www.v-infinity.com
page
date
REM (pin 2)
-Vin (pin 4)
04/2011
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