TLC5970 Description
The TLC5970 is a three-channel, constant-current sink driver with a buck dc/dc converter and a differential signal interface. Each channel has individually adjustable currents with 4096 PWM grayscale (GS) steps and 128 constant-current sink steps for dot correction (DC). The dot correction adjusts the brightness variations between LEDs.
TLC5970 Key Features
- 23 3-Channel, Constant-Current Sink Output
- Current Capability: 150 mA per channel
- Grayscale (GS) Control with PWM
- Dot Correction (DC): 7-bit (128 steps)
- Global Brightness Control (BC)
- EEPROM for Dot Correction Storage
- Input Voltage: Up to 36 V
- LED Supply Voltage: Up to 17 V with Auto LED
- Constant-Current Accuracy
- Channel-to-Channel = ±0.5% (typ)
TLC5970 Applications
- Full-Color Static LED Displays for Building Wall