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2
Getting Familiar With the Kit
2.1
Kit Contents
The kit consists of:
•
LED BoosterPack
•
AC/DC Power Adapter (12 V 1A)
•
Quick Start Guide
2.2
Kit Specifications
The LED BoosterPack has the following specifications:
•
Power Input:
– 6 V minimum @ 1.2A
– 20 V maximum @ 360 mA
•
Boost Stages (each):
– Input
•
6 V minimum @ 400 mA
•
20 V maximum @ 120 mA
– Output
•
24 V nominal @ 100 mA
3
Hardware Overview
Figure 2
illustrates a LED lighting system running from DC power.
There are multiple ways of controlling LEDs. This board uses the C2000 devices to control a separate DC
supply for each of the LED strings. Brightness control is accomplished using the C2000 devices by
independently varying the output power of each DC/DC stage. This allows the user to control the average
current passing through each LED string. Since average current is roughly proportional to lumen output,
each LED string's brightness is controlled.
SPRUHH9 – July 2012
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DC
DC/DC
stages
input
Figure 2. Lighting System Topology
Figure 3
Copyright © 2012, Texas Instruments Incorporated
LED strings
shows the circuit diagram for the LED BoosterPack.
Getting Familiar With the Kit
C2000 LED BoosterPack
5
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