TLC5945 - Texas Instruments

TLC5945 16-Channel LED Driver

The TLC5945 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 v.

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
• 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 DESCRIPTION The TLC5945 is a 16-channel, constant-current sink, LED driver. Each channel has an individually adjustable 4096-step grayscale P.