LP5811DYBHR

LED Driver IC Overview

The LP5811DYBHR 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 delivers up to 300 mA output current at a switching frequency of 6 MHz. The component includes individual LED dot open/short detection and an integrated de-ghosting function. It supports both analog and PWM dimming methods and functions reliably between -40°C and +85°C in a DSBGA-12 package.

LED Driver IC Feature Summary

• Integrates an autonomous animation engine for complex lighting effects without external microcontroller intervention.
• Provides four high-precision constant current sinks suitable for RGBW LED configurations.
• Includes built-in diagnostic capabilities for individual LED dot open and short circuit detection.
• Features an integrated de-ghosting function to improve visual quality during dimming operations.

LED Driver IC Applications

• RGBW LED backlighting systems
• General illumination drivers requiring synchronized color mixing
• Portable devices with limited space for LED control circuits

LED Driver IC Procurement Notes

Verify the specific suffix DYBHR against the official Texas Instruments datasheet to confirm the exact package type and temperature grade. Ensure compatibility with the target PCB footprint for the DSBGA-12 package. Cross-reference the ordering information with authorized distributors to validate part authenticity and revision levels before procurement.

LED Driver IC Selection Notes

Select this component when a synchronous boost topology is required for driving RGBW LEDs from low input voltages. It is appropriate for designs needing precise current matching across multiple channels and integrated animation capabilities. Consider the 6 MHz switching frequency for EMI management and the small form factor for space-constrained layouts.

LED Driver IC Part Context

This part belongs to the LP5811 series of LED drivers from Texas Instruments. The series focuses on providing efficient power conversion and advanced control features for multi-channel LED applications. The LP5811 variant specifically targets RGBW configurations, offering integrated boost regulation and sophisticated dimming controls within a compact surface-mount package.

LED Driver IC Replacement Considerations

LP5811AYBHR