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April 25, 2017

50 Watt 5V 10A Output Fully Isolated DC/DC Converter with 24VDC (18V-35V) input


24VDC in 5VDC DC converter
Already mounted on circuit board as shown. Unmounted bricks also available.
24VDC to 5VDC DC/DC converter 35 amps, 175 watts 24VDC to 5VDC converter 35 amps, 175 watts
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Quantity 1-50 50-99 100-499 500-999 1000+
Price PST-DC2405-10-Complete $49.00
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Over 1000 pieces in stock
$43.25 $41.00 $38.50 $37.75
Isolated DC converter brick module.
PST-DC2405-10 24V to 5V, 50W DC-DC converter
Input Range 18VDC to 35VDC
Output Voltage 5VDC (trimable from 3.9 to 5.5 VDC)
Output Current 0 to 10.25 Amps
Output Power 50 Watts
Voltage set point accuracy ±1%
Line Regulation ±1%
Load Regulation ±1%
Ripple and noise 75mVp-p
Efficiency 84% at 9-10 amps output
Dynamic Regulation 50% load step 4%
  Settling time 100 µSec
Output voltage trim range ±10%
Short circuit protection Continuous
Over current protection Continuous, 110-150% threshold
Over voltage protection Continuous, 110-140% trip range
Turn-on time < 10 mS
Temperature Coefficient ±0.02% /°C
Switching Frequency 400 kHz
Temperature range -40°C to 100°C operating (baseplate)
Weight 4 oz, 113 grams
  -55°C to +125°C storage
Size 107mm x76mm x 23mm (4.2 x 3.0 x .9 inches)
Vibration 5G, 3 axis, 5 minutes each
Agency Approval UL component (RU mark), CE
Humidity <95%, non condensing


Application Notes:


Remote sense and trim functions
To use the remote sense, connect the "Sense +" and "Sense -" terminals to wires that go to the load and don't carry any current. This lets the DC converter stabilize the voltage at the load, compensating for voltage loss in the wires that carry current.
In other words, without using the "Sense" terminals the voltage will be stabilize at the converter output terminals. As the current flows through wires, connectors, and contacts then resistance of these elements will cause a voltage drop due to Ohm's law. If you run an extra set of wires from the sense terminals to the load that don't carry current, then these can be used to sense the actual voltage at the load and the converter will boost its voltage to compensate for this voltage drop (over a limited range, ±0.5 Volts.)

The sense terminals can also be used to trim the voltage with fixed resistors or a pot as follows:
How to arrange the trimpot.

Schematic of how to trim the output voltage. Fixed resistors would also work, they should add to about 10k Ohms.

Cooling

No heat sink is necessary at ambient temperatures below 30°C. At higher ambient temperatures derate the current or supply a flow of up to 200LFM (linear feet per minute) cooling air is provided (at 100°C ambient). This can be supplied by a 10 cubic feet per minute fan that is about 2.5 inches square. Pentium cooling heat-sink-fans will also do this.

Standard heatsinks are available for half-brick modules such as Wakefield 517-95AB, 527-45AB, 527-24AB, 518-95AB, 528-45AB, 528-24AB, or the less expensive CUI VHS-45 or VHS-95.


Drawings
Gerber files for the circuit board are here
DMW75S-05-BoardProductiongerbersandproteusfiles.zip


Printed circuit board dimensions are 107mm x 76mm (4.2 x 3.0 inches)
Complete circuit board assembly
The fully populated board dimensions are 107mm x 76mm x 23mm (4.2 x 3.0 x .9 inches). It includes connectors for Vin and Vout as well as inhibit and Sense terminals. The board mounting holes are 3.6 mm (0.143 inch) in diameter 64mm x 95mm center to center spacing.

NOTE! At maximum power the faceplate temperatures are definitely in the "burn your fingers" category and care should be taken to prevent human contact.


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5VDC 10Amp converter dc dc, 24v to 5v converter
brick converter dc dc, 18V input, 24V input, 26V input, 28V input, 30V input, 32V input

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