LX1990ILM-TR

LED Driver IC Overview

The LX1990ILM-TR is a linear LED driver integrated circuit manufactured by Microsemi Corporation. It features two independent output channels designed for driving LEDs with a constant current of 30mA per channel. The device supports linear pulse-width modulation (PWM) dimming, allowing for precise control of LED brightness levels. Packaged in a compact 6-pin MLP format, it integrates necessary control logic to manage dual-channel operation efficiently within space-constrained electronic designs.

LED Driver IC Feature Summary

• Dual-output architecture providing independent current regulation for two separate LED channels
• Supports linear PWM dimming functionality for adjustable brightness control
• Integrated constant current source delivering stable 30mA output per channel

LED Driver IC Applications

• Embedded communication devices requiring indicator lighting
• Portable electronics with limited board space
• Consumer appliances needing status indication

LED Driver IC Procurement Notes

Verify the manufacturer designation carefully, as the component was originally developed under the Micrel brand before its acquisition by Microsemi and subsequent integration into Microchip Technology. Ensure the specific suffix matches the required tape-and-reel packaging configuration. Confirm that the voltage ratings align with your system's power supply constraints before finalizing procurement orders.

LED Driver IC Selection Notes

Select this component when a compact solution for dual-channel LED control is required without complex switching regulators. It is suitable for applications where linear regulation efficiency is acceptable compared to the benefit of reduced component count and simplified thermal management. Evaluate the total power dissipation capabilities against the ambient temperature conditions of the intended enclosure.

LED Driver IC Part Context

This part belongs to the family of linear LED drivers originally produced by Micrel, which was acquired by Microsemi Corporation in 2010. Microsemi was subsequently acquired by Microchip Technology in 2018. The product line continues to be supported under the Microchip portfolio, maintaining compatibility with legacy designs while offering updated supply chain support through the parent organization.

LED Driver IC Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official Microchip or distributor databases for cross-reference data, ensuring any replacement maintains the 30mA output current and 6-pin MLP package dimensions.