NXP Semiconductors
UM11009
PCA9745B demonstration board OM13524
UM11009
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2016. All rights reserved.
User manual
Rev. 1 — 23 June 2016
3 of 28
1. Introduction
The PCA9745B evaluation board features LEDs for color mixing, blinking and dimming
demonstrations. A graphical interface allows the user to easily explore the different
functions of the driver. The board can be connected in series with other SPI-bus demo-
boards to create an evaluation system.
The IC communicates to the host via the industry standard SPI-bus port. The evaluation
software runs under Microsoft Windows PC platform.
2. Features
•
A complete evaluation platform for the PCA9745B 16-channel SPI-bus constant
current LED driver
•
Easy to use GUI based software demonstrates the capabilities of the PCA9745B
•
On-board four white and four RGB 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 SPI-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
•
Fm+ development board (OM13260) or WIN-I2CUSB board (from
www.demoboard.com)
3.4 Power requirements
The NXP demonstration boards OM13260 and OM13524 hardware obtain power from
the PC USB port. Care should be taken not to exceed the USB port current capabilities.
CAUTION
This device is sensitive to Electro Static 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.