TLC5949 Overview
Description
The TLC5949 is a 16-channel, constant-current sink LED driver. Each channel has an individuallyadjustable, pulse width modulation (PWM) grayscale (GS) brightness control with 4096 steps.
Key Features
- 2 16 Constant-Current Sink Output Channels
- Sink Current Capability with Maximum BC Data: 2 mA to 45 mA
- Global Brightness Control (BC): – 7-Bit (128 Steps) with 25% to 100% Range
- Grayscale Control (GS) with Enhanced Spectrum or Conventional PWM: – 12-Bit (4096 Steps)
- LED Power-Supply Voltage: Up to 10 V
- VCC: 3.0 V to 3.6 V
- Constant-Current Accuracy: – Channel-to-Channel: ±0.6% (typ), ±2% (max) – Device-to-Device: ±1% (typ), ±4% (max)
- Data Transfer Rate: 33 MHz
- Grayscale Control Clock: 33 MHz
- Auto Display Repeat and Auto Data Refresh
