TITLC59401PWPR
Overview
The TLC59401PWPR is a 16-channel constant-current sink LED driver featuring 12-bit PWM grayscale control and 6-bit dot correction for each channel. It operates with a serial data interface up to 30MHz and supports output voltages up to 17V, making it suitable for driving long LED strings or high-brightness arrays. The device includes integrated features like LED open detection and thermal error flags to ensure system reliability.
Why Choose This Part
This driver offers 12-bit PWM resolution (4096 steps) for extremely smooth brightness transitions and 6-bit dot correction for precise color balancing across outputs. The PowerTSSOP package with PowerPAD ensures efficient heat dissipation when sinking up to 120mA per channel, while the controlled inrush current prevents large power supply spikes during switching.
Applications
Key Specifications
Getting Started
To begin development, connect the TLC59401PWPR to a microcontroller using its 30MHz serial interface; the device is compatible with 3V to 5.5V logic levels. Use a single external resistor at the IREF pin to set the maximum sink current for all 16 channels. Hardware designers should ensure the thermal pad is properly soldered to a PCB ground plane to handle the heat generated by the linear current sinks.
Also Consider
