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FEATURES

DESCRIPTION/ORDERING INFORMATION

TLC59108

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• Eight LED Drivers (Each Output Programmable

• Software Reset Feature (SWRST Call) Allows

At Off, On, Programmable LED Brightness,

Programmable Group Dimming/Blinking Mixed

• Up to 14 Possible Hardware-Adjustable

With Individual LED Brightness

• Eight Constant-Current Open-Drain Output

That Each Device Can Be Programmed

Channels

• Open-Load/Overtemperature Detection Mode

• 256-Step (8-Bit) Linear Programmable

to Detect Individual LED Errors

Brightness Per LED Output Varying From Fully

• Output State Change Programmable on the

Off (Default) to Maximum Brightness Using a

Acknowledge or the Stop Command to Update

97-kHz PWM Signal

Outputs Byte by Byte or All at the Same Time

• 256-Step Group Brightness Control Allows

(Default to Change on Stop)

General Dimming (Using a 190-Hz PWM Signal

• Output Current Adjusted Through an External

From Fully Off to Maximum Brightness

Resistor

(Default)

• Constant Output Current Range: 10 mA to

• 256-Step Group Blinking With Frequency

120 mA

Programmable From 24 Hz to 10.73 s and Duty

• Maximum Output Voltage: 17 V

Cycle From 0% to 99.6%

• 25-MHz Internal Oscillator Requires No

• Four Hardware Address Pins Allow 14

External Components

TLC59108 Devices to be Connected to the

Interface With 30-mA High Drive Capability on

SDA Output for Driving High-Capacitive Buses

Addresses (One LED Group Call Address and

• Internal Power-On Reset

Three LED Sub Call Addresses) Allow Groups

• Noise Filter on SCL/SDA Inputs

of Devices to be Addressed at the Same Time

in Any Combination. For Example, One

• No Glitch on Power Up

Register Used for All Call, so That All the

• Active-Low Reset

• Supports Hot Insertion

Addressed at the Same Time, and the Second

• Low Standby Current

Register Can be Used for Three Different

• 3.3-V or 5-V Supply Voltage

Addresses so That One-Third of All Devices on

the Bus Can be Addressed at the Same Time

• 5.5-V Tolerant Inputs

in a Group.

• Offered in 20-Pin TSSOP (PW) and QFN (RGY)

Packages

Address

• –40°C to 85°C Operation

mixing and backlight application for amusement products. Each LED output has its own 8-bit resolution

(256 steps) fixed-frequency individual PWM controller that operates at 97 kHz, with a duty cycle that is adjustable

from 0% to 99.6%. The individual PWM controller allows each LED to be set to a specific brightness value. An

additional 8-bit resolution (256 steps) group PWM controller has both a fixed frequency of 190 Hz and an

adjustable frequency between 24 Hz to once every 10.73 seconds, with a duty cycle that is adjustable from 0%

to 99.6%. The group PWM controller dims or blinks all LEDs with the same value.

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Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

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PRODUCTION DATA information is current as of publication date.

Copyright © 2009, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.