TLC59208F屬于集成電路（IC）的LED驅(qū)動(dòng)器。由美國德州儀器公司制造生產(chǎn)的TLC59208FLED 驅(qū)動(dòng)器器件屬于 LED 驅(qū)動(dòng)器電源管理集成電路 (PMIC) 系列，可通過標(biāo)稱固定電壓的電源為負(fù)載（通常為發(fā)光二極管）提供電流，并且電流可控。它與用于電壓調(diào)節(jié)的類似產(chǎn)品的主要區(qū)別在于，這類器件提供較低的反饋電壓（以提高系統(tǒng)能效），而且通?？蓪ζ骷ぷ鼽c(diǎn)進(jìn)行外部控制，可在照明應(yīng)用中用于實(shí)現(xiàn)調(diào)光功能。

1 Features

? Eight LED Drivers (Each Output Programmable at

OFF, ON, Programmable LED Brightness,

Programmable Group Dimming/Blinking Mixed

With Individual LED Brightness)

? Eight Open-Drain 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%

? 64 Programmable Slave Addresses Using Three

Hardware Address Pins

? Four Software Programmable I2C Bus Addresses

(One LED Group Call Address and Three LED

Sub Call Addresses) Allow Groups of Devices to

be Simultaneously Addressed Any Combination

(For Example, One Register Used for ‘All Call’ so

That All the TLC59208Fs on the I2C Bus Can be

Simultaneously Addressed and the Second

Register Used for Three Different Addresses so

That One Third of All Devices on the Bus Can be

Simultaneously Addressed)

? Software Enable and Disable for I2C Bus Address

? Software Reset Feature (SWRST Call) Allows the

Device to be Reset Through the I2C Bus

? Up to 14 Possible Hardware Adjustable Individual

I2C Bus Addresses Per Device so That Each

Device Can be Programmed

? Up to 64 Possible Hardware Adjustable Individual

I2C Bus Addresses Per Device so That Each

Device Can be Programmed Individually

? 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)

? Maximum Output Current: 50 mA

? Maximum Output Voltage: 17 V

? 25-MHz Internal Oscillator Requires no External

Components

? 1-MHz Fast-Mode Plus (FM+) 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 (RESET)

? Supports Hot Insertion

? Low Standby Current

? 3.3-V or 5-V Supply Voltage

? 5.5-V Tolerant Inputs

? Packages Offered: 16-Pin Thin Shrink Small-

Outline Package [TSSOP (PW)], 16-Pin Quad

Flatpack No Lead [QFN (RGY)]

? –40°C to 85°C Operation

2 Applications

? Gaming

? Small Signage

? Industrial Equipment

3 Description

The TLC59208F is an I2C bus controlled 8-bit LED

driver optimized for red/green/blue/amber (RGBA)

color mixing applications. 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%

to allow the LED to be set to a specific brightness

value.