LP5522TM

LED Driver IC Overview

The LP5522TM is a programmable LED driver IC manufactured by National Semiconductor, now part of Texas Instruments. It features linear current regulation for precise brightness control and consistent light output. The device provides one output with a maximum current of 20mA. It is housed in a compact 6-DSBGA package measuring 1.44x1.16 mm. The component supports internal switches and allows for the creation of lighting effects through programmable pulses.

LED Driver IC Feature Summary

• Linear current regulation for precise LED brightness control
• Programmable pulse generation capabilities
• Integrated internal switches for high-side constant current flow

LED Driver IC Applications

• Mobile device backlighting
• LED indicator circuits
• Portable electronic lighting systems

LED Driver IC Procurement Notes

Verify the manufacturer designation as National Semiconductor or Texas Instruments on the datasheet. Confirm the specific marking code '6' matches the LP5522TM/NOPB.A variant. Ensure the package type is strictly 6-DSBGA (1.44x1.16) to avoid confusion with other LP55xx series components.

LED Driver IC Selection Notes

Select this component when a single-channel LED driver with linear dimming is required. It is suitable for applications needing precise current control without complex PWM interfaces. Consider the small DSBGA footprint for space-constrained mobile designs.

LED Driver IC Part Context

This part belongs to the LP55xx series of programmable LED drivers from National Semiconductor. These devices are designed to replace discrete LED driving solutions, offering integrated memory and control logic for creating dynamic lighting effects in consumer electronics.

LED Driver IC Replacement Considerations

Check for LP5523 or LP5521 variants if additional channels are needed. Verify compatibility with LP5520 series for RGB backlighting requirements. Ensure pinout and package dimensions match the existing PCB layout.