LP5523TM/NOPB

LED Driver IC Overview

The LP5523TM/NOPB is a 9-channel RGB/White LED driver IC from Texas Instruments, designed for complex lighting applications. It features an integrated charge pump topology and supports I2C control interfaces. The device operates within a supply voltage range of 2.7 V to 5.5 V and delivers a maximum output current of 25.5 mA per channel. It functions at a switching frequency of 1.25 MHz with adjustable output voltage capabilities. The component is housed in a DSBGA-25 package and maintains operation across temperatures from -30°C to +85°C.

LED Driver IC Feature Summary

• Integrates nine independent output channels capable of driving RGB and White LED configurations simultaneously.
• Includes an internal charge pump circuit to manage voltage requirements for high-efficiency LED driving.
• Supports digital programming and configuration via standard I2C communication protocols.

LED Driver IC Applications

• Smartphone and mobile device display backlighting systems
• Ambient light sensing and color temperature adjustment modules
• Portable electronic device indicator and notification lighting

LED Driver IC Procurement Notes

Verify the specific suffix 'TM' against the datasheet to confirm the tape and reel packaging configuration intended for automated assembly processes. Ensure the NOPB designation aligns with RoHS compliance requirements for your manufacturing standards. Cross-reference the DSBGA-25 footprint dimensions during PCB layout validation to prevent mechanical interference.

LED Driver IC Selection Notes

Select this component when a high channel count is required for multi-color LED arrays without external multiplexing. The integrated charge pump simplifies design by eliminating external boost inductors. Consider the 25.5 mA output limit when sizing LEDs for brightness requirements. The I2C interface allows for flexible software-defined lighting profiles.

LED Driver IC Part Context

This part belongs to the LP5523 series of programmable LED drivers. It shares functional similarities with the LP5521 but offers increased channel density. The TM variant specifically denotes the surface-mount package type suitable for high-volume production environments requiring compact form factors.

LED Driver IC Replacement Considerations

LP5523TMX/NOPB is the reel-packaged equivalent of the cut-tape version. LP5521TM/NOPB serves as a lower-channel alternative if fewer outputs are sufficient.

LED Driver IC FAQ

What is the maximum current capability per channel?

Each of the nine output channels can deliver up to 25.5 mA of constant current.

Does the device require external components for voltage boosting?

No, the LP5523 includes an integrated charge pump, reducing the need for external boost inductors.