mini-box DCDC-USB-200 Quick Installation Manual

DCDC-USB-200

6-34V high power, I

ntelligent DC-DC converter with USB interface

Quick Installation Guide

Version 1.0c

P/

N DCDC-USB-200

Introduction

The DCDC-USB-200 is a powerful DC-DC power supply designed to power a
wide variety of devices. This DC-DC has a range of intelligent functions not found
in any tradition USB converters. Features include USB interface, programmable
output voltage and scripting as well as automotive modes.

The DCDC-USB-200 device is able to send ON/OFF ‘pulse signals’ to
motherboards based on voltage levels or Ignition sensing, making it an ideal
device for automotive or battery powered installations.

This unit has a wide input range (6-34V) and it can provide a tightly regulated
output ranging from 6 to 24V (default set to 12V). Emissions are reduced using 2
out of sync, spread spectrum buck-boost converters.

mini-itx.com ATX DC-DC Converter Series

DCDC-USB-200 Quick Installation Guide Page 2

CONFIG

Timing SchemesOutput voltage

Main mode

Quick installation Instructions

J10

J7

J1J9

J8 J6

D1

VOUT

VIN

DCD-USB-200

Fig 1.0, DCDC-USB-200 layout

J7: Configuration jumpers for Voltage, Mode and Timings.
Left mini-FIT connector: Power input, V(in) – (Red), GND, Ignition *(Yellow)
Right mini-FIT connector: Power output V(out), GND.
J8 : Soft ON/OFF control for motherboard. Connect this to motherboard ON/OFF

pins if you want the motherboard to be controlled by the unit.

J9: mini-USB type B jack. Connect this to a PC to access advanced settings.
J1: USB header for internal connection.
D1 STATE: State LED
J10 : Provides unregulated switched input, to be used in automotive modes to

power various peripherals.

Basic Operation

For basic operation, you would need to connect a power source to V(IN). V(IN) is
on the left side of the board, near the input fuse. Polarity is marked on the PCB
(GND, VIN and Ignition). On the cable harness, GND is black, V(in) is red and
Ignition is white. NOTE: Ignition is not needed for basic operation.

Without any further settings, V(out) will generate 12V regulated. V(out) is located
on the right side of the PCB, near the USB connector. On the cable harness,
Yellow is positive and GND is negative.

Configuration jumpers

The configuration header J7 (marked CONFIG) is the most important header in
this board. It is divided in 3 sections: