MC34845CEPR2

LED Driver IC Overview

The MC34845CEPR2 is a six-channel LED backlight driver IC manufactured by NXP USA Inc. It features an integrated boost converter topology designed for edge-lit LCD displays ranging from 10 to 17 inches. The device supports PWM dimming and delivers up to 2.3A per channel with an internal switch. It operates within a supply voltage range of 5V to 21V and is housed in a 24-QFN-EP (4x4) package.

LED Driver IC Feature Summary

• Integrates a high-efficiency boost converter with an internal power FET for compact design
• Provides independent current regulation for six output channels to ensure uniform backlight brightness
• Supports pulse-width modulation (PWM) dimming for precise control of display luminance

LED Driver IC Applications

• Edge-lit LCD backlight systems for 10-inch to 17-inch displays
• Portable computing devices requiring multi-channel LED driving
• Industrial monitor backlighting solutions

LED Driver IC Procurement Notes

Verify the specific suffix 'R2' against the manufacturer's latest documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with the target PCB footprint, specifically the 24-QFN-EP (4x4) exposed pad requirements. Cross-reference the part number with official distributors to validate current availability status, as component lifecycle stages may affect long-term sourcing.

LED Driver IC Selection Notes

Select this component when designing edge-lit LCD backlights for screens between 10 and 17 inches. It is suitable for applications requiring six independently regulated LED channels driven by a single boost regulator. Consider the 24-QFN-EP package for thermal management and space-constrained layouts. Verify input voltage ranges align with the system's 5V to 21V supply capabilities.

LED Driver IC Part Context

This part belongs to NXP's family of LED lighting drivers, specifically optimized for portable display applications. It integrates power switching and control logic to simplify the bill of materials compared to discrete solutions. The device addresses the need for high-current LED driving in slim form factors common in modern consumer electronics and industrial interfaces.

LED Driver IC Replacement Considerations

Check for the MC34844AEPR2 as a potential related variant within the same product family. Confirm pinout compatibility and electrical specifications before substitution. Verify if alternative packages or suffixes offer equivalent performance for the specific application requirements.