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TLC59108IPWR

TITLC59108IPWR

Texas Instruments
LED Driver IC 8 Output Linear Dimming 120mA 20-TSSOP
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Overview

The TLC59108IPWR is an 8-channel, I2C-controlled constant-current LED sink driver designed for high-efficiency color mixing and backlighting applications. Each of the eight outputs can sink up to 120mA at voltages up to 17V, featuring an internal 8-bit resolution PWM for individual brightness control.

Why Choose This Part

The device supports the Fast-mode Plus I2C specification up to 1MHz, allowing for rapid updates across multiple chained devices. Its constant-current sinks eliminate the need for individual series resistors, while the 17V output rating allows for driving multiple LEDs in series per channel.

Applications

RGB LED Color Mixing
Utilizes independent 8-bit PWM per channel to create precise colors for status indicators or decorative lighting.
LCD Backlighting
Provides stable, constant-current driving for small to medium display backlights with 120mA capability.
Industrial Control Panels
Offers reliable LED signaling with a wide 3V to 5.5V supply range and high-speed I2C communication.
User Interface Indicators
Ideal for multi-LED arrays where individual dimming and global brightness control are required through a single bus.

Key Specifications

Type Linear
Frequency 25MHz
Mounting Type Surface Mount
Package / Case 20-TSSOP (0.173", 4.40mm Width)
Voltage - Output 17V
Number of Outputs 8
Internal Switch(s) Yes
Operating Temperature -40degC ~ 85degC (TA)
Voltage - Supply (Max) 5.5V
Voltage - Supply (Min) 3V
Supplier Device Package 20-TSSOP
Current - Output / Channel 120mA

Getting Started

To evaluate this IC, connect the I2C bus to a microcontroller and set the target current using a single external resistor on the REXT pin. Ensure the thermal pad is correctly soldered to manage heat dissipation when sinking the maximum 120mA per channel across all outputs.

Also Consider

TLC59116IPWR TITexas Instruments - Provides 16 channels instead of 8 for applications requiring higher LED density on the same I2C bus.
PCA9685 NXP Semiconductors - Offers 16 channels with 12-bit PWM resolution, though it lacks the high-current constant-current sink capability of the TLC59108.

Categories

Displays & Optoelectronics > LED Drivers Consumer Electronics > LED & Lighting Control