background image

©

 Semiconductor Components Industries, LLC, 2012

November, 2012 

 Rev. 1

1

Publication Order Number:

EVBUM2164/D

CAT3649AGEVB

CAT3649 Evaluation Board
User's Manual

Introduction

This document describes the CAT3649 evaluation board

for the ON Semiconductor CAT3649 6

Channel

Quad

Mode LED Driver with an Ambient Light Sensor

circuit, NOA1211, that can control the LEDs intensity
proportionally with the ambient light intensity.

The functionality and major parameters of the CAT3649

can be evaluated with the CAT3649 evaluation board.

A detailed description and electrical characteristics are

available in the CAT3649 and NOA1211 datasheets.

Board Hardware

The evaluation board contains one CAT3649 in an

application circuit driving a total of six LEDs and one
NOA1211. The Ambient Light Sensor is connected to the
LED driver via the C8051F321 microcontroller, which is
illustrated in Figure 2.

Figure 1. CAT3649 Evaluation Board

Figure 2. Ambient Light Sensor Mode Block Diagram

http://onsemi.com

EVAL BOARD USER’S MANUAL

Отзывы: