LP5811BYBHR

LED Driver IC Overview

The LP5811BYBHR is a synchronous boost LED driver IC from Texas Instruments, designed for multi-channel RGBW applications. It features four independent output channels with a maximum output current of 300 mA per channel. The device operates within a supply voltage range of 500 mV to 5.5 V and supports an operating frequency of 6 MHz. Output voltages are adjustable between 3 V and 5.5 V. It offers analog and PWM dimming capabilities and functions reliably across a temperature range of -40°C to +85°C. The component is housed in a DSBGA-12 package.

LED Driver IC Feature Summary

• Synchronous boost topology for efficient multi-channel LED driving
• Supports both analog and PWM dimming methods
• Four independent output channels for RGBW configurations

LED Driver IC Applications

• RGBW LED lighting systems
• Backlight drivers for displays
• General illumination control circuits

LED Driver IC Procurement Notes

Verify the specific suffix 'YBHR' against the official Texas Instruments datasheet to confirm package type and tape-and-reel specifications. Ensure the application circuit matches the synchronous boost requirements and input voltage constraints defined in the electrical characteristics table. Cross-reference the RoHS compliance status as documented in the manufacturer's ordering information section.

LED Driver IC Selection Notes

Select this component when a synchronous boost architecture is required for RGBW LED arrays. The 300 mA per-channel capability suits medium-brightness applications. Consider the 6 MHz switching frequency for inductor size optimization. Verify that the input voltage range of 500 mV to 5.5 V aligns with the system power supply design.

LED Driver IC Part Context

This part belongs to the LP5811 series of LED drivers. It is distinct from the LP5810, which uses a linear topology. The LP5811 series is engineered for higher efficiency in boost configurations compared to linear alternatives. The BYBHR suffix indicates specific packaging and handling options provided by Texas Instruments for surface-mount assembly.

LED Driver IC Replacement Considerations

LP5811AYBHR: Similar boost driver but may differ in specific electrical parameters or pinout compatibility; verify datasheet details before substitution.