LP8556SQX-E08/NOPB

LED Driver IC Overview

The LP8556SQX-E08/NOPB is a six-channel high-efficiency LED backlight driver from Texas Instruments. It utilizes a boost topology with an input voltage range of 2.7 V to 20 V and delivers up to 23 mA per channel. The device supports adjustable switching frequencies of 312 kHz, 625 kHz, or 1.25 MHz, generating output voltages between 16 V and 34.5 V. It operates within a temperature range of -30°C to +85°C and features I2C and PWM control interfaces in a WQFN-24 package.

LED Driver IC Feature Summary

• Six independent current-regulated channels for uniform backlight distribution
• I2C digital interface for programmable brightness and configuration
• PWM dimming capability for precise visual control
• Adjustable switching frequency to optimize external component size

LED Driver IC Applications

• LCD panel backlighting for mobile devices
• Display backlight systems for automotive infotainment units
• High-efficiency lighting solutions for portable electronics

LED Driver IC Procurement Notes

Verify the specific suffix E08 against the official datasheet to confirm pinout and electrical characteristics match your design requirements. Ensure the WQFN-24 footprint aligns with your PCB layout guidelines. Confirm RoHS compliance status through the manufacturer's documentation before finalizing procurement decisions.

LED Driver IC Selection Notes

Select this component when designing systems requiring multiple synchronized LED channels with digital control. The wide input voltage range accommodates single-cell lithium-ion battery operation. Consider the thermal performance of the WQFN-24 package for your enclosure constraints. Verify that the required switching frequency options meet your electromagnetic interference filtering needs.

LED Driver IC Part Context

This part belongs to the LP8556 series of LED drivers, designed specifically for high-efficiency backlight applications. The SQX variant indicates a specific tape-and-reel packaging format suitable for automated surface-mount assembly processes. It represents a specialized solution within Texas Instruments' portfolio for display illumination management.

LED Driver IC Replacement Considerations

Consult the official datasheet for direct pin-to-pin compatible alternatives within the same family. Verify that any substitute maintains identical channel count and control interface specifications.