TLC5942 - Texas Instruments

TLC5942 16-Channel 12-Bit PWM LED Driver

The TLC5942 is a 16-channel, constant current sink driver. Each channel is individually adjustable with 4096 pulse-width modulated (PWM) steps and 128 constant current sink steps for dot correction. Dot correction adjusts the brightness variations between LEDs. Both grayscale control and dot correction are accessible via separate, dedicated serial interface .

Features

1
•23 16 Channels, Constant Current Sink Output
• 50-mA Capability (Constant Current Sink)
• 12-Bit (4096 Steps) Grayscale Control with PWM
• 7-Bit (128 Steps) Dot Correction with Sink Current
• LED Power-Supply Voltage up to 17 V
• Constant Current Accuracy:
  – Channel-to-Channel = ±1.5%
  – Device-to-Device = ±3%
• VCC = 3.0 V to 5.5 V
• CMOS Level I/O
• 30-MHz Data Transfer Rate
• 30-MHz Grayscale Control Clock
• Dedicated Ports for Grayscale and Dot Correction
• Continuous Base LED Open Detection (LOD)
• Thermal Shutdown (TSD):
  – Automatic shutdown at high temperature conditions
  – Restart und.