The TLC5924 is a 16-channel constant-current sink driver suitable for monocolor, multicolor, and full-color LED displays. The driver features high-precision constant current output and fast switching output, and can be controlled and adjust brightness through a serial data interface.
The TLC5924 LED driver provides 16 independent constant‑current sink channels, each programmable from 0 to 80 mA. It features 7‑bit dot‑correction for brightness uniformity and a pre‑charge FET to improve image quality. Communication is handled through a serial data interface with a 30 MHz data‑transfer rate.
The device is offered in 32‑pin HTSSOP (PowerPAD™) and 32‑pin QFN packages, operates from 3 V to 5.5 V supply voltage, and is rated for –40 °C to 85 °C. Key functions include LED open detection (LOD), thermal error flag (TEF), and configurable BLANK control.
| Number of channels | 16 |
|---|---|
| Supply voltage range | 3 V to 5.5 V |
| Pre‑charge voltage range | 3 V to 15 V |
| Maximum output current per channel | 0 mA to 80 mA |
| Data transfer rate | 30 MHz |
| Operating temperature range | -40 °C to 85 °C |
| Package options | 32‑pin HTSSOP (PowerPAD™) and 32‑pin QFN |
Each channel can sink up to 80 mA of constant current.
It is set by an external resistor between the IREF pin and ground; the current through this resistor is multiplied by 40.
When BLANK is high, all outputs are forced to the VUP level; when low, output control follows the data registers.