EL1848IYZ

Overview

The EL1848IYZ is an integrated circuit LED driver manufactured by Renesas Electronics Corporation. It functions as a constant current regulator designed for backlight applications, featuring an internal DC-DC boost converter. The device supports an input voltage range from 2.6V to 13.2V and delivers a regulated output current of up to 400mA. Operating at a switching frequency of 1MHz, it utilizes a TSOT23-8 surface-mount package. The component is rated for an ambient temperature range of -40°C to 85°C.

Feature Summary

• Integrates a boost converter for efficient LED driving
• Provides regulated constant current output
• Supports high-frequency operation for compact design

Applications

• LED backlighting systems

Procurement Notes

Verify the specific suffix 'Y' against official Renesas documentation to confirm pinout and electrical specifications, as variations exist within the EL1848 family. Confirm availability status, as some variants are marked as obsolete or not recommended for new designs. Ensure the selected package matches the required PCB footprint and thermal requirements for the target application environment.

Selection Notes

Select this component when a compact solution with integrated boost capability is required for LED backlighting. Consider the 400mA current limit and 1MHz switching frequency for efficiency and size constraints. Evaluate the 2.6V minimum input voltage against the system power supply rails. Compare against other EL1848 variants to ensure the correct package and feature set for the specific design needs.

Part Context

The EL1848 series belongs to Renesas' portfolio of LED drivers, specifically targeting portable electronics and display backlighting. These devices combine control logic with power stages to simplify design. The EL1848IYZ represents a specific variant within this group, distinguished by its packaging and electrical parameters, serving as a building block for uniform illumination in various consumer and industrial displays.