UM10572
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© NXP B.V. 2012. All rights reserved.
User manual
Rev. 1 — 7 June 2012
3 of 16
NXP Semiconductors
UM10572
PCA9955 demonstration board OM13330
1. Introduction
The PCA9955 evaluation board features LEDs for color mixing, blinking and dimming
demonstrations. A graphical interface allows the easy exploration of the different functions
of the driver. The board can be connected in series with other I
2
C-bus demo boards to
create an evaluation system.
The IC communicates to the host via the industry standard I
2
C-bus/SMBus port. The
evaluation software runs under Microsoft Windows PC platform.
2. Features
•
A complete evaluation platform for the PCA9955 16-channel Fm+ I
2
C-bus constant
current LED driver
•
Easy to use GUI-based software demonstrates the capabilities of the PCA9955
•
On-board RGB and White LEDs for visual experience
•
Convenient test points for easy scope measurements and signal access
•
USB interface to the host PC
•
No external power supply required
3. Getting
started
3.1 Assumptions
Familiarity with the I
2
C-bus is helpful but not required.
3.2 Static
handling
requirements
3.3 Minimum
system
requirements
•
PC Pentium 60 processor (or equivalent), 8 MB RAM, 10 MB of hard drive space
•
One USB port (either 2.0 or 1.1 compatible)
•
Windows 98SE, ME, 2000, XP, or Vista
•
I2C demonstration board 2005-1 (OM6275) or WIN-I2CUSB board (from
www.nxp.com/redirect/demoboard.com
)
3.4 Power
requirements
The NXP demonstration board I2C 2005-1 and OM13330 hardware obtain power from the
PC USB port. Take care to not exceed the USB port current capabilities.
CAUTION
This device is sensitive to ElectroStatic Discharge (ESD). Therefore care should be taken
during transport and handling. You must use a ground strap or touch the PC case or other
grounded source before unpacking or handling the hardware.