User Instructions

DC/DC50HV

v.1.0

DC/DC 5A HV Step down DC/DC converter

with adjustable output voltage

EN**

Edition: 1 from 26.08.2015

Supercedes the edition: --------

The module’s features:

 Step down DC/DC converter with adjustable output voltage

 Example of use: step down from 48V to 12V DC

 The input voltage range: 28÷60V DC

 The output voltage range: 12÷24V DC

 The maximum load current 5A (60W)

 The PSU technical output indicating converter failure

triggered by:

 Short-circuit of the output

 Output overload

 Protections:

 Short-circuit protection SCP

 Overload protection OLP

 High efficiency: 92%

 Optical LED indication

 Warranty – 2 years from the production date

 Mounting:

 Mounting strip with adhesive tape

 Mounting screws

Example of use of the DC/DC50HV Step down DC/DC converter with adjustable output voltage.

Schematic diagram of the converter operation.

Adjustment of the converter output voltage: 12V÷24V DC, 5A max.

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DC/DC50HV v.1.0 DC/DC 5A HV Step down DC/DC converter with adjustable output voltage EN** Edition: 1 from 26.08.
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1. Technical description The step down converter DC/DC 5A (DC/DC50HV) is used for step down the input voltage from the range between 28V÷60V DC to the voltage range of 12V÷24V DC at the output, adjusted with the VADJ potentiometer. The maximum load current is Imax=5A (Pmax=60W). The module does not feature galvanic isolation between input/output (IN-AUX) and operates on common "ground" (0V) potential (IN- and AUX- terminals are galvanically connected = common terminal). 1.1. Block diagram (Fig.1). Fig.1.
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1.3. Technical parameters: - Electrical parameters (Table 3) - Mechanical parameters (Table 4) Table 3.
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Example: The converter will supply the receivers with a capacity of PAUX = 48W drawing a total current of IAUX = 4A at the voltage UAUX = 12V. The minimum power supply capacity must therefore amount to: PIN = 1,15 x 4A x 12V = 55,2W. The device should be mounted in a metal enclosure (cabinet). The rules for power supply, enclosures and shielding - according to application - must be observed in order to meet the requirements of LVD and EMC directives. 2.2. Installation procedure. 1.