TLC5940-EP - Texas Instruments

TLC5940-EP 16-Channel LED Driver

The TLC5940-EP 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. The dot correction data is stored in an integrated EEPR.

Features

•1 16 Channels
• 12-Bit (4096 Steps) Grayscale PWM Control
• Dot Correction
  – 6 Bit (64 Steps)
  – Storable in Integrated EEPROM
• Drive Capability (Constant-Current Sink) of 0 mA to 72 mA (
  –40°C to 125°C)
  – 0 mA to 60 mA (VCC < 3.6 V,
  –40°C to 85°C)
  – 0 mA to 120 mA (VCC > 3.6 V,
  –40°C to 85°C)
• LED Power Supply Voltage up to 17 V
• VCC = 3 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 2 Applications
• Monocolor, Multicolor, Full-Color LED Displays
• LED Signbo.