MAX1848ETA

LED Driver IC Overview

The MAX1848ETA is a white LED step-up converter designed to drive LEDs with constant current for backlight applications in handheld devices. It operates from a single-cell lithium-ion battery or two alkaline cells, providing up to 750mA of output current. The device integrates a synchronous boost converter and features an enable pin for power management. It supports external dimming control and includes protection against overvoltage and thermal shutdown. The component is housed in an 8-pin TDFN package with an exposed pad for improved thermal performance.

LED Driver IC Feature Summary

• Integrates a synchronous boost converter for efficient white LED driving
• Provides constant current regulation for uniform backlight brightness
• Supports external analog dimming control for brightness adjustment
• Includes comprehensive protection features such as thermal shutdown

LED Driver IC Applications

• Cell phone backlights
• PDA backlights
• Handheld device displays

LED Driver IC Procurement Notes

Verify the specific suffix 'T' indicates tape and reel packaging when ordering. Confirm the '+T' designation aligns with lead-free and RoHS compliance requirements for your assembly process. Ensure the 8-TDFN package footprint matches your PCB design constraints. Cross-reference the manufacturer's latest datasheet for any updates to electrical characteristics or recommended operating conditions before finalizing procurement.

LED Driver IC Selection Notes

Select this component for applications requiring a compact solution for driving multiple white LEDs from a single-cell battery source. Consider the 750mA maximum output current capability when determining the number of series-connected LEDs. Evaluate the thermal performance requirements given the exposed pad package type. Verify that the input voltage range covers your battery discharge curve effectively.

LED Driver IC Part Context

This part belongs to the Maxim Integrated line of LED driver ICs, specifically optimized for portable electronics. It addresses the need for high-efficiency backlighting in space-constrained mobile devices. The technology leverages synchronous rectification to maximize battery life while maintaining consistent LED brightness levels across varying input voltages.

LED Driver IC Replacement Considerations

Consult Analog Devices official documentation for qualified replacement parts. Verify pin compatibility and electrical specifications before substituting. No public substitute part numbers are confirmed in the provided data.