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.
● 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
●PowerPAD is a trademark of Texas Instruments.
