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Samlexpower SDC-23 User Manual

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Owner's
Manual
Please read this
manual before
operating your
converter
DC-DC Step
Down Converter
Model:
SDC-15
SDC-23
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Samlexpower SDC-23 Specifications

General IconGeneral
BrandSamlexpower
ModelSDC-23
CategoryMedia Converter
LanguageEnglish

Summary

Safety Warnings

Not Battery Chargers

Units are not battery chargers and should not be connected directly to a battery for charging purposes.

Negative Grounded Systems

Units are designed for negative grounded systems only. Do not connect to positive grounded systems.

Common Ground

Input and output sides share a common negative ground, meaning no isolation between them.

Protections

Overload / Short Circuit Protection

Units are protected by current limiting. Output voltage drops when current limit is reached and resets when overload is removed.

Temperature Compensated Current Limit

Current limit decreases as the temperature of the main switching MOSFET increases.

Over Voltage on Output Side

A crowbar circuit activates and blows input fuse if output voltage exceeds 16.5 V +/-0.5 V.

Over Voltage / Transients on Input Side

Input protected by a TVS. Input fuse blows if voltage exceeds 37 VDC.

Reversal of Polarity on Input Side

Input fuse blows if input side polarity is reversed.

Installation and Operation

General Installation Requirements

Install in cool, dry, ventilated space (ambient temp. max 40°C). Do not install in engine compartment. Avoid live connections.

Fusing on Input & Output Sides

Use suitable fast blow fuses on positive input wire (within 18 in of battery) and output +13.8V terminal.

Wiring Size

Use proper size input/output wires to prevent voltage drop. Lower AWG means thicker wire. Use multi-stranded copper wire rated for 90°C.

Making Connections & Operation

Ensure correct polarity. Connect output to load, then unit. Connect input to unit, then battery. Insert fuses and switch on power.

Specifications

SDC-15 Specifications

Details input voltage, output voltage, current limits, ripple, noise, temperature, fuses, wire size, dimensions, and weight.

SDC-23 Specifications

Details input voltage, output voltage, current limits, ripple, noise, temperature, fuses, wire size, dimensions, and weight.

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