SP7614A datasheet(10/14 Pages) SIPEX

Part #	SP7614A

Description	2-4 Channel Low Dropout Linear LED Driver

PDF	14 Pages

Scroll/Zoom	100%

Manufacturer	SIPEX [Sipex Corporation]

Direct Link	http://www.sipex.com

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10 / 14 page

Apr20-07 RevS

SP7611A/7612A/7614A Low Dropout Linear LED driver



2007 Sipex Corporation

Page 10

LED Brightness Control

The SP761X LED Drivers feature analog and

PWM controls to give designers flexible

brightness control. To determine the value of

RSET , use the "ISET vs. VCRTL" graph under

the Typical Performance Characteristics.

1. SP761X/A

Analog using VCONTROL

Set VCONTROL and RSET for LED current

SETTING THE LED CURRENT – page 8

- PWM - Vcontrol

-Amplitude of PWM signal sets maximum LED

current

-Pulse width controls current between 0 and

maximum LED Set current

PWM using Enable

Set VCONTROL and RSET for LED current

SETTING THE LED CURRENT – page 6

ENABLE = PWM

-Amplitude has no effect on current

-Pulse width controls current between 0 and

maximum LED set current

APPLICATION INFORMATION

SP7614A Datasheet(PDF) 10 Page - Sipex Corporation