Texas Instruments TPS92518 Dual Buck LED Controllers are dual-channel buck LED current controllers with an SPI communications interface. The serial communication interface provides a singular communication path for multichannel and platform lighting driver module (LDM) applications. The Texas Instruments TPS92518 uses a quasi-hysteretic control method that supports switching frequencies ranging from 1kHz to 2MHz. This control method enables superior, high-frequency shunt FET dimming and handles the demanding dynamic loads of adaptive LED matrix-based headlamp systems. Software programmable SPI set points (Precision Peak Current, Controlled Off-Time, and Output Voltage Sense) enable designers to develop a single LED driver solution for multiple load configurations. These solutions can be quickly reconfigured for future LED driver design requirements.
