MC34845BEPR2

LED Driver IC Overview

The MC34845BEPR2 is a high-efficiency DC-DC regulator designed for LED backlighting in LCD displays ranging from 10 to 17 inches. It operates as a step-up (boost) converter with six independent outputs and an internal switch capable of delivering 2.6A. The device supports PWM dimming and functions within a supply voltage range of 5V to 21V. It is housed in a 24-pin QFN package with an exposed pad, suitable for surface-mount installation.

LED Driver IC Feature Summary

• Integrates a high-efficiency boost topology with an internal power switch for compact design
• Provides six regulated output channels for multi-zone LED backlight control
• Supports pulse-width modulation (PWM) dimming for precise brightness adjustment

LED Driver IC Applications

• Backlighting for LCD displays sized between 10 and 17 inches
• LED driver circuits requiring multiple regulated outputs
• Portable electronic devices utilizing high-efficiency power management

LED Driver IC Procurement Notes

Verify component authenticity through authorized NXP distributors or certified suppliers. Confirm the part status, which is listed as obsolete, and assess availability of alternative sources if necessary. Ensure compliance with environmental standards such as RoHS and REACH directives before procurement.

LED Driver IC Selection Notes

Select this component for applications requiring a multi-channel LED driver with integrated switching capabilities. Consider the 24-QFN package constraints and thermal requirements associated with the 3.4W power dissipation. Evaluate compatibility with system input voltages between 5V and 21V and ensure support for PWM dimming signals is present in the host controller.

LED Driver IC Part Context

This IC belongs to the MC34845 family of LED lighting drivers manufactured by NXP Semiconductors. These components are specialized for display backlighting applications, offering regulated current control across multiple channels. The series is designed to replace discrete solutions, reducing board space and improving efficiency in portable electronics.

LED Driver IC Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. As the MC34845BEPR2 is marked obsolete, consult official NXP resources for potential end-of-life alternatives or compatible successors within the same product family.