LP5811DDRRR

LED Driver IC Overview

The LP5811DDRRR is a synchronous boost LED driver IC from Texas Instruments, designed for RGBW LED applications. It features four constant current sinks with high precision and an autonomous animation engine control. The device operates within a supply voltage range of 500 mV to 5.5 V and supports output voltages from 3 V to 5.5 V. It integrates a 6 MHz switching frequency and delivers up to 300 mA output current per channel. The component is housed in a WSON-12 package and functions across a temperature range of -40°C to +85°C.

LED Driver IC Feature Summary

• Integrates an autonomous animation engine for independent pixel-level LED PWM control without external processor intervention.
• Includes individual LED dot open/short detection capabilities for enhanced system reliability and fault monitoring.
• Features an integrated de-ghosting function to improve visual quality during dimming operations.
• Supports both analog and PWM dimming methods for flexible brightness control.

LED Driver IC Applications

• RGBW LED lighting systems requiring precise color mixing and brightness control.
• Display backlights utilizing synchronous boost topology for efficient power management.
• Automotive interior lighting applications compatible with the specified operating temperature range.

LED Driver IC Procurement Notes

Verify the specific suffix DDRRR against the manufacturer's official datasheet to confirm package type and tape-and-reel specifications. Ensure compatibility with the target PCB footprint for the WSON-12 package. Cross-reference the RoHS status and material declarations with the latest production data before finalizing procurement orders.

LED Driver IC Selection Notes

Select this component when designing circuits that require integrated boost conversion and multi-channel RGBW control in a compact form factor. Consider the 6 MHz switching frequency for inductor size optimization. Evaluate the 300 mA sink capability against the total LED load requirements. Verify that the input voltage range aligns with the system power supply architecture.

LED Driver IC Part Context

This part belongs to the LP5811 series of LED drivers from Texas Instruments. It is distinct from linear drivers like the LP5810, offering a boost topology suitable for driving higher voltage LED strings. The DRRR suffix indicates the specific reel packaging configuration used by distributors.

LED Driver IC Replacement Considerations

Consult the official TI selection guide for direct pin-to-pin or functional equivalents within the LP581x family. Verify electrical parameters such as output current and switching frequency when considering alternative parts.