LP8556SQX-E09/NOPB

LED Driver IC Overview

The LP8556SQX-E09/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 output current per channel. The device supports adjustable switching frequencies of 312 kHz, 625 kHz, and 1.25 MHz, generating output voltages between 16 V and 34.5 V. It features I2C and PWM control interfaces, operates within a temperature range of -30°C to +85°C, and is housed in a WQFN-24 package.

LED Driver IC Feature Summary

• Six independent current-mode channels for uniform LED backlighting
• Integrated I2C interface for digital configuration and control
• Supports both analog PWM and digital dimming methods
• Adjustable switching frequency to optimize external component size

LED Driver IC Applications

• High-efficiency LED backlight drivers for mobile devices
• Efficacy-optimized lighting solutions for portable electronics
• System integration requiring I2C-controlled LED arrays

LED Driver IC Procurement Notes

Verify the specific suffix E09 against the official Texas Instruments datasheet to confirm pinout and feature set compatibility. Ensure the WQFN-24 footprint matches the design layout. Confirm RoHS compliance status through the manufacturer's documentation before finalizing procurement specifications.

LED Driver IC Selection Notes

Select this component when designing systems requiring precise multi-channel LED current regulation via digital interfaces. The wide input voltage range and flexible switching frequencies allow adaptation to various power supply architectures. Consider the thermal performance of the WQFN-24 package for space-constrained applications.

LED Driver IC Part Context

This part belongs to the LP8556 series of LED lighting drivers designed for high efficiency. It complements other variants like the LP8556SQ-E09/NOPB by offering specific packaging or configuration options within the same functional family, targeting modern portable display backlighting requirements.

LED Driver IC Replacement Considerations

LP8556SQ-E09/NOPB serves as a direct alternative within the same series. Verify package dimensions and electrical parameters against the target design requirements before substitution.