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Número de piezaY59208F TI
Texas Instruments TI
componentes Descripción8-BIT FM+ I2C BUS LED DRIVER
Y59208F Datasheet PDF : 27 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
TLC59208F
www.ti.com .................................................................................................................................................................................................. SCLS715 – MARCH 2009
8-BIT FM+ I2C BUS LED DRIVER
FEATURES
1
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
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2009, Texas Instruments Incorporated
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DESCRIPTION
The TLC59208F is an I2 C 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. 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% that is used to either dim or blink all LEDs with the same value.

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 BusAddresses (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

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