Texas Instruments TLC5941RHB

Description
The TLC5941 is a 16-channel, constant-current sink, LED driver. Each channel has an individually adjustable 4096-step grayscale PWM brightness control and a 64-step constant-current sink (dot correction). The dot correction adjusts the brightness variations between LED channels and other LED drivers. Both grayscale control and dot correction are accessible via a serial interface. A single external resistor sets the maximum current value of all 16 channels.
The TLC5941 features two error information circuits. The LED open detection (LOD) indicates a broken or disconnected LED at an output terminal. The thermal error flag (TEF) indicates an overtemperature condition.

Features
16 Channels
12-Bit (4096 Steps) Grayscale PWM Control
Dot Correction - 6 Bit (64 Steps)
Drive Capability (Constant-Current Sink) - 0 mA to 80 mA
LED Power Supply Voltage up to 17 V
Vcc 3.0 V to 5.5 V
Serial Data Interface
Controlled In-Rush Current
30-MHz Data Transfer Rate
CMOS Level I/O
Error Information
LOD: LED Open Detection
TEF: Thermal Error Flag

Applications
Monocolor, Multicolor, Full-Color LED Displays
LED Signboards
Display Back-Lighting