LP8556SQE-E08/NOPB

LED Driver IC Overview

The LP8556SQE-E08/NOPB is a six-channel high-efficiency LED backlight driver from Texas Instruments, housed in a WQFN-24 package. It operates on an input voltage range of 2.7 V to 20 V and supports output voltages from 16 V to 34.5 V with a maximum output current of 23 mA per channel. The device utilizes a boost topology and features adjustable switching frequencies of 312 kHz, 625 kHz, or 1.25 MHz. It includes I2C control, PWM dimming, and enable/shutdown capabilities, functioning within a temperature range of -30°C to +85°C.

LED Driver IC Feature Summary

• Six independent high-efficiency channels designed for uniform LED backlighting applications
• Integrated I2C interface for precise digital control of brightness and configuration
• Supports multiple switch frequencies to optimize external component size and efficiency
• Includes PWM dimming capability for smooth brightness adjustment

LED Driver IC Applications

• High-resolution LCD panel backlighting for mobile devices
• LED illumination systems requiring precise multi-channel current regulation
• Portable electronics utilizing I2C-controlled display backlights

LED Driver IC Procurement Notes

Verify the specific suffix E08 against the official datasheet to confirm pinout and thermal characteristics. Ensure the WQFN-24 footprint matches the target PCB design. Confirm RoHS compliance status through the manufacturer's documentation. Validate that the operating temperature range meets the environmental requirements of the final assembly.

LED Driver IC Selection Notes

Select this component when a six-channel solution with I2C control is required for compact designs. The WQFN-24 package offers a small form factor suitable for space-constrained portable devices. Consider the adjustable frequency options to balance electromagnetic interference and passive component size. Verify that the input voltage range aligns with the system power supply architecture.

LED Driver IC Part Context

This part belongs to the LP8556 series of LED lighting drivers from Texas Instruments. The series provides high-efficiency solutions for backlighting applications. Variants within the family differ primarily by packaging type, such as DSBGA or WQFN, and specific ordering suffixes that define thermal or mechanical attributes while maintaining core electrical functionality.

LED Driver IC FAQ

What is the maximum output current per channel?

The maximum output current is 23 mA per channel.

Does the device support PWM dimming?

Yes, the LP8556SQE-E08/NOPB supports PWM control for dimming applications.