TLC5948A - Texas Instruments

TLC5948A 16-Channel 16-Bit ES-PWM Full Self-Diagnosis LED Driver

The TLC5948A is a 16-channel, constant-current sink LED driver. Each channel has an individuallyadjustable, pulse width modulation (PWM) grayscale (GS) brightness control with 65,536 steps and 128 steps of constant-current dot correction (DC). DC adjusts brightness deviation between channels. All channels have a 128-step global brightness control (BC). BC ad.

Features

1
•23 16 Constant-Current Sink Output Channels
• Sink Current Capability with Maximum DC and BC Data:
  – 2 mA to 45 mA (VCC ≤ 3.6 V)
  – 2 mA to 60 mA (VCC > 3.6 V)
• Dot Correction (DC):
  – 7-Bit (128 Steps) with 0% to 100% Range
• Global Brightness Control (BC):
  – 7-Bit (128 Steps) with 25% to 100% Range
• Grayscale Control (GS) with Enhanced Spectrum or Conventional PWM:
  – 16-Bit (65,536 Steps)
• LED Power-Supply Voltage: Up to 10 V
• VCC: 3.0 V to 5.5 V
• Constant-Current Accuracy:
  – Channel-to-Channel: ±0.6% (typ), ±2% (max)
  – Device-to-Device: ±1% (typ), ±4% (max)
• Data Transfer Rate: 33 MH.