© Semiconductor Components Industries, LLC, 2015

May, 2015 − Rev. 6

1

Publication Order Number:

CAT4109/D

CAT4109, CAV4109

3-Channel Constant-Current

RGB LED Driver with

Individual PWM Dimming

Description

The CAT4109/CAV4109 is a 3−channel constant−current LED

driver, requiring no inductor. LED channel currents up to 175 mA are

programmed independently via separate external resistors. Low output

voltage operation of 0.4 V at 175 mA allows for more power efficient

designs across wider supply voltage range. The three LED pins are

compatible with high voltage up to 25 V supporting applications with

long strings of LEDs.

Three independent control inputs PWM1, PWM2, PWM3, control

respectively LED1, LED2, LED3 channels. The device also includes

an output enable (OE) control pin to disable all three channels

independently of the PWMx input states.

Thermal shutdown protection is incorporated in the device to

disable the LED outputs whenever the die temperature exceeds 150

°C.

The device is available in a 16−lead SOIC package.

Features

Unique Site and Control Change Requirements; AEC−Q100

Qualified and PPAP Capable

Compliant

Application

www.onsemi.com

SOIC−16

V SUFFIX

CASE 751BG

PIN CONNECTIONS

MARKING DIAGRAM

(Top View)

Device

Package

Shipping

ORDERING INFORMATION

CAT4109V−GT2

(Note 1)

SOIC−16

(Pb−Free)

2,000/

Tape & Reel

1. Lead Finish Pb−Free

L3A

CAT4109VB

YMXXXX

1

PGND

GND

PWM3

PWM1

PWM2

VDD

OE

NC

NC

NC

LED1

LED2

LED3

RSET3

RSET2

RSET1

L = Assembly Location

3 = PB Free

A = Product Revision (Fixed as “A”)

CAT4109V = Device Code

B = Leave Blank

Y = Production Year (Last Digit)

M = Production Month (1−9, O, N, D)

XXXX = Last Four Digits of Assembly Lot Number

CAV4109V−GT2

(Note 1)

SOIC−16

(Pb−Free)

2,000/

Tape & Reel