TLC59108F系列介绍资料

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TLC59108F

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8 位快速模式增强版 (FM+) I2C 总线 LED 驱动器

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The TLC59108F device is an I²C bus controlled 8-bit LED driver optimized for red, green, blue, or 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.

Each LED output can be off, on (no PWM control), set at its individual PWM controller value or at both individual and group PWM controller values. The TLC59108F operates with a supply voltage range of 3 V to 5.5 V and the outputs are 17-V tolerant. LEDs can be directly connected to the TLC59108F device outputs.

Eight LED Drivers (Each Output Programmable at
OFF, ON, Programmable LED Brightness,
Programmable Group Dimming and 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%
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 so
That All the TLC59108Fs 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 Hardware Selectable I²C Bus Addresses
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: 120 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

Number of channels	8
LED current per channel (mA)	120
LED configuration	Parallel, Series, Single
Program memory	No
Topology	Current Sink, Linear
Programmable ramp control	No
Vin (min) (V)	3
Vin (max) (V)	5.5
Iout (max) (A)	0.96
Features	I2C control
Iq (typ) (mA)	6
Operating temperature range (°C)	-40 to 85
Rating	Catalog

TSSOP (PW)

41.6 mm² 6.5 x 6.4

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TLC59108F

8 位快速模式增强版 (FM+) I2C 总线 LED 驱动器

4000-306-326