LP5868TMRKPR

LED Driver IC Overview

The LP5868TMRKPR is an LED lighting driver IC from Texas Instruments, featuring an 8 x 18 high-current LED matrix configuration. It provides 18 constant current outputs with a maximum output current of 100 mA per channel. The device operates on a supply voltage range of 2.7 V to 5.5 V and supports both analog and PWM dimming methods. It integrates SPI/I2C interfaces for control and includes protection features such as thermal shutdown, LED open detection, and LED short detection. The component is housed in a VQFN-40 package and functions within a temperature range of -55°C to +125°C.

LED Driver IC Feature Summary

• Supports mixed analog and PWM dimming for precise brightness control
• Integrates hardware-level LED fault detection for open and short circuits
• Includes thermal shutdown protection to ensure operational safety

LED Driver IC Applications

• High-current LED matrix illumination systems
• RGB LED driver implementations requiring constant current regulation
• Industrial or automotive lighting applications demanding wide temperature operation

LED Driver IC Procurement Notes

Verify the specific suffix 'MRKPR' against the official Texas Instruments datasheet to confirm pinout, packaging, and environmental compliance details. Ensure the design accommodates the VQFN-40 thermal requirements and that the host controller supports the required SPI or I2C communication protocols for proper initialization and control.

LED Driver IC Selection Notes

Select this component when an 8x18 matrix topology is required with high-output current capabilities up to 100 mA. It is suitable for designs needing extended industrial temperature ranges and integrated fault detection. Compare against the LP5866TMRKPR if lower current specifications are acceptable, or the LP5860MRKPR for different matrix configurations.

LED Driver IC Part Context

This part belongs to the LP5868T series of LED matrix drivers. It shares functional similarities with other members like the LP5866TMRKPR but is distinguished by its specific high-current output characteristics and matrix addressing capabilities designed for complex LED array management.

LED Driver IC Replacement Considerations

The LP5866TMRKPR is a related variant within the same family. Verify compatibility regarding output current ratings and specific application requirements before substitution.