1 Features

. Eight LED Drivers (Each Output Programmable At

Off, On, Programmable LED Brightness,

Programmable Group Dimming/Blinking Mixed

With Individual LED Brightness

. Eight Constant-Current Output Channels

. 256-Step (8-Bit) Linear Programmable Brightness

Per LED Output Varying From Fully Off (Default)

to Maximum Brightness Using a 97-kHz PWM

Signal

. 256-Step Group Brightness Control Allows

General Dimming (Using a 190-Hz PWM Signal

From Fully Off to Maximum Brightness (Default)

. 256-Step Group Blinking With Frequency

Programmable From 24 Hz to 10.73 s and Duty

Cycle From 0% to 99.6%

. Four Hardware Address Pins Allow 14 TLC59108

Devices to be Connected to the Same I2C Bus

. Four Software-Programmable I2C Bus Addresses

(One LED Group Call Address and Three LED

Sub Call Addresses) Allow Groups of Devices to

be Addressed at the Same Time in Any

Combination. For Example, One Register Used for

All Call, so That All the TLC59108 Devices on the

I2C Bus Can be Addressed at the Same Time,

and the Second Register Can be Used for Three

Different Addresses so That One-Third of All

Devices on the Bus Can be Addressed at the

Same Time in a Group.

. Software Enable and Disable for I2C Bus Address

. Software Reset Feature (SWRST Call) Allows

Device to be Reset Through I2C Bus

. Up to 14 Possible Hardware-Adjustable Individual

I2C Bus Addresses Per Device, So That Each

Device Can Be Programmed

. Open-Load/Overtemperature Detection Mode to

Detect Individual LED Errors

. Output State Change Programmable on the

Acknowledge or the Stop Command to Update

Outputs Byte by Byte or All at the Same Time

(Default to Change on Stop)

. Constant Output Current Adjusted Through an

External Resistor (10mA to 120mA)

. Maximum Output Voltage: 17 V

. 25-MHz Internal Oscillator Requires No External

Components

. 1-MHz Fast Mode Plus Compatible I2C Bus

Interface With 30-mA High Drive Capability on

SDA Output for Driving High-Capacitive Buses

. Internal Power-On Reset

. Noise Filter on SCL/SDA Inputs

. No Glitch on Power Up

. Active-Low Reset

. Supports Hot Insertion

. 3.3-V or 5-V Supply Voltage

2 Applications

• Gaming

• Small Signage

• Industrial Equipment

3 Description

The TLC59108 is an I2C bus controlled 8-bit LED

driver that is optimized for red/green/blue/amber

(RGBA) color mixing and backlight applications.