LX1744CLQ

LED Driver IC Overview

The LX1744CLQ is a DC-DC controller IC designed for LED driver applications, manufactured by Microsemi Corporation. It utilizes a step-up (boost) topology to regulate power efficiently. The device supports two outputs and accepts an input supply voltage ranging from 1.6V to 6V, delivering up to 25V at the output. It features both analog and PWM dimming capabilities for precise light control. The component operates within a temperature range of -40°C to 85°C and is housed in a 16-MLPQ (4x4) surface-mount package without internal switches.

LED Driver IC Feature Summary

• Supports analog and PWM dimming methods for flexible brightness control
• Utilizes boost topology for efficient voltage regulation
• Designed specifically for backlighting applications

LED Driver IC Applications

• Backlight systems
• LED lighting drivers
• Portable electronic devices requiring low-voltage operation

LED Driver IC Procurement Notes

Verify component authenticity as this part is marked as obsolete or discontinued by the manufacturer. Confirm availability through authorized distributors or surplus suppliers. Ensure the 16-MLPQ package matches your PCB footprint requirements. Check for RoHS compliance documentation if environmental standards are mandatory for your assembly process.

LED Driver IC Selection Notes

Select this component when a boost converter architecture is required for driving LEDs from low-voltage sources. It is suitable for designs needing dual-channel control with mixed dimming support. Consider the absence of internal switches when designing external power stages. Evaluate the thermal performance within the specified operating temperature range for your specific enclosure constraints.

LED Driver IC Part Context

This IC belongs to the LX1744 series of power management integrated circuits. Microsemi Corporation, now part of Microchip Technology, produced this line for specialized power control needs. The LX1744CLQ represents a specific variant optimized for LED applications, distinguishing itself through its dual-output capability and wide input voltage flexibility compared to single-output counterparts.

LED Driver IC Replacement Considerations

As the LX1744CLQ is listed as obsolete, direct substitutes may be limited. Review Microchip's current LED driver portfolio for functional equivalents. Verify pin compatibility and electrical specifications before considering alternative manufacturers. No public confirmed substitute part numbers are available in the provided data.