TILP5024RSMR
Overview
The LP5024RSMR is a 24-channel constant-current LED driver designed for sophisticated RGB color mixing and brightness control via an I2C interface. It features integrated 12-bit, 29kHz PWM generators for each channel, enabling flicker-free dimming and smooth color transitions without heavy MCU overhead. The device is optimized for low-power operation with a shutdown current of just 1 microamp and a dedicated power-save mode.
Why Choose This Part
The 12-bit PWM resolution combined with optional logarithmic dimming curves allows for human-eye friendly brightness transitions. Its integrated 3-phase PWM-shifting scheme reduces simultaneous switching noise and lowers the peak current requirements of the input power supply. The dedicated color-mixing and brightness-control registers simplify software development by allowing global brightness changes without recalculating individual RGB ratios.
Applications
Key Specifications
Getting Started
Engineers should start by evaluating the LP5024EVM evaluation module to test the I2C command set and LED patterns. Communication is handled via standard I2C (up to 400kHz) using the internal oscillator, so no external clock source is required. Ensure the thermal pad is properly soldered to a ground plane to manage heat dissipation when running multiple channels at the maximum 35mA current.
Also Consider
NXP Semiconductors
- A widely available 16-channel PWM controller that offers an alternative for standard LED dimming without the specific RGB mixing registers.
