LP8552TLX/NOPB

LED Driver IC Overview

The LP8552TLX/NOPB is a high-efficiency LED backlight driver IC from Texas Instruments, designed for portable applications. It integrates a boost DC-DC converter with six independent current-regulated channels, each capable of delivering up to 450mA. The device operates on an input voltage range of 2.7V to 22V and supports PWM dimming for brightness control. Key features include adjustable switching frequency, I2C control interface, and internal enable/shutdown functionality. It is housed in a compact 25-DSBGA package and functions within a temperature range of -40°C to +85°C.

LED Driver IC Feature Summary

• Integrates a high-efficiency boost DC-DC converter with six independent constant-current output channels
• Supports digital control via I2C interface and analog/PWM dimming for precise brightness regulation
• Features adjustable switching frequency to optimize external component selection and EMI performance
• Includes internal power switches and comprehensive protection mechanisms for reliable operation

LED Driver IC Applications

• Backlight drivers for mobile phones and smartphones
• LED illumination for tablet computers and handheld devices
• Camera flash and ambient light sources in portable electronics
• General-purpose LED lighting in consumer gadgets requiring multi-channel control

LED Driver IC Procurement Notes

Verify the specific suffix 'E06' if present in your part number, as it may indicate a specific tape-and-reel configuration or packaging variant distinct from the standard NOPB designation. Confirm that the 25-DSBGA footprint matches your PCB layout requirements. Ensure compatibility with the required I2C address settings and check for any recent Product Change Notifications regarding manufacturing site or material changes.

LED Driver IC Selection Notes

Select this component when designing systems requiring multiple LED strings driven from a single boost converter. It is suitable for applications needing independent channel current adjustment via I2C. Consider the input voltage range and maximum output current per channel against your LED array specifications. Evaluate the thermal performance within the 25-DSBGA package for your enclosure constraints.

LED Driver IC Part Context

This part belongs to the LP8552 family of LED drivers, which are optimized for high-efficiency backlighting in portable devices. The LP8552 series provides a scalable solution for driving multiple LEDs from low-voltage battery sources. Variants within the family may differ in output current capabilities or packaging options, but share the core boost topology and digital control architecture.

LED Driver IC Replacement Considerations

LP8552TLE/NOPB: Similar 6-channel driver with potential differences in packaging or reel quantity. LP8552TLX-E06/NOPB: Specific reel configuration variant. LP8553TLX/NOPB: Higher efficiency variant within the same family.