MC34845AEPR2

LED Driver IC Overview

The MC34845AEPR2 is a six-channel LED backlight driver IC manufactured by NXP Semiconductors. It operates as a DC-DC step-up (boost) regulator with an internal switch capable of delivering up to 2.3A. The device supports PWM dimming and regulates current for LCD displays ranging from 10 to 17 inches or larger. It accommodates up to 16 LEDs in series, functioning within a supply voltage range of 5V to 21V. The component is housed in a 24-QFN-EP package and is rated for operation between -40°C and +85°C.

LED Driver IC Feature Summary

• Six independent output channels designed for high-efficiency LED backlighting applications
• Integrated boost converter topology with internal power switch for compact system design
• Supports pulse-width modulation (PWM) dimming for precise brightness control

LED Driver IC Applications

• Backlighting for LCD displays sized 10 inches to 17 inches and above
• Portable electronic devices requiring efficient LED drive solutions
• Industrial display systems operating within extended temperature ranges

LED Driver IC Procurement Notes

Verify the specific suffix 'R2' against the required datasheet revision, as it may indicate tape-and-reel packaging or specific environmental compliance such as RoHS. Confirm availability status, as this part number has been marked as obsolete in some distributor records. Ensure the procurement source provides valid traceability documentation for quality assurance purposes.

LED Driver IC Selection Notes

Select this component when designing systems requiring multi-channel LED regulation without external switching transistors. The integrated boost topology simplifies schematic design compared to discrete solutions. Consider the 24-QFN-EP package for thermal management requirements and board space constraints. Verify that the input voltage range aligns with the system's power supply architecture.

LED Driver IC Part Context

This part belongs to the MC34845 family of LED drivers from NXP Semiconductors. The 'MC34845AEP' variant shares similar electrical characteristics but differs in packaging or reel configuration. These components are engineered for portable electronics and display applications where efficiency and channel count are critical design parameters.

LED Driver IC Replacement Considerations

Check for direct substitutes within the MC34845 family, such as the MC34845AEP, noting any differences in packaging or lifecycle status. Evaluate alternative NXP LED drivers if the MC34845AEPR2 is unavailable due to obsolescence.