SBOOST User Guide
2
Version 1.4 February 2012
© Copyright 2012SPROG DCC
Introduction
SBOOST is a DCC booster designed primarily intended for use with the
SPROG II, but also useable with other DCC systems, to boost the track
output current for driving a larger layout.
Requirements
Regulated DC Power Supply 12
– 20V, 3A
Features
Opto-isolated DCC input for electrical isolation between the layout and
the command station
DCC activity LED shows reception of valid DCC input
Power LED flashes when programming track power is live
Specification/Operating Conditions
Parameter
Minimum
Typical
Maximum Units
DC Input supply
voltage
12V
20V
V
Vin supply current
2.6
Note 1
A
Output Load
–
Operating Layout
2.5
A
Auto reverse
detection delay
1.2
ms
Overload detection
delay
3.2
ms
Overload cutout
delay
410
ms
1. The current capacity of the power supply must be greater than the
2.5A current limit of the SBOOST. A 3A power supply is
recommended.
2. The DCC track voltage will be slightly less than the power supply
voltage.
