LX1990ILM

LED Driver IC Overview

The LX1990ILM is a linear LED driver IC manufactured by Microsemi Corporation. It features dual outputs with a fixed output current of 30mA per channel. The device supports PWM dimming control and operates within a supply voltage range of 2.7V to 5.5V. The output voltage spans from 0.1V to 10V. It is housed in a 6-MLP (3x3) package with an exposed pad, designed for compact surface-mount applications.

LED Driver IC Feature Summary

• Linear topology for stable LED current regulation
• Dual-channel output capability
• Supports pulse-width modulation dimming

LED Driver IC Applications

• LED backlighting systems
• Indicator lighting circuits
• Portable electronic devices requiring low-power LED drive

LED Driver IC Procurement Notes

Verify the manufacturer status as Microsemi has been acquired by Microchip. Confirm the specific suffix (e.g., -TR for tape and reel vs. bulk) matches the required packaging format. Check for end-of-life or obsolescence notices, as some listings indicate discontinued status. Ensure the 6-MLP footprint compatibility with the target PCB design.

LED Driver IC Selection Notes

Select this component when dual independent LED channels are required with precise current matching. The linear architecture suits applications where noise sensitivity is low and efficiency is secondary to simplicity. Verify that the input voltage remains within the 2.7V to 5.5V range to ensure proper operation and thermal performance.

LED Driver IC Part Context

This part belongs to the Microsemi LED driver family, focusing on linear regulation solutions. It serves as a specialized power management IC for visual indication and illumination tasks. The product line emphasizes reliability and straightforward interface requirements for embedded lighting control.

LED Driver IC Replacement Considerations

Check for direct equivalents from Microchip following the acquisition. Verify pin-to-pin compatibility if substituting with other 6-MLP LED drivers. Ensure the replacement maintains the 30mA output current specification and PWM dimming functionality.