ZXLD1366ET5TA

Overview

The ZXLD1366ET5TA is a high-accuracy, continuous mode inductive step-down (buck) converter designed for driving single or multiple series-connected LEDs. It integrates an internal switch and supports PWM dimming. The device operates with a supply voltage range of 6V to 60V and delivers up to 1A output current. It features a switching frequency of 1MHz and provides an output voltage capability of 65V. The component is housed in a TSOT-23-5 package and is qualified to AEC-Q100 standards for automotive applications.

Feature Summary

• Integrates an internal power switch within a compact surface-mount package
• Supports PWM dimming control for precise LED brightness regulation
• Designed for efficient operation in continuous conduction mode buck topologies

Applications

• Automotive exterior lighting systems
• Interior vehicle illumination modules
• General LED lighting driver circuits

Procurement Notes

Verify the specific suffix 'Q' if automotive qualification is required, as the base model may differ from the qualified variant. Confirm current availability status as some distributors list this part as obsolete or end-of-life. Ensure the selected packaging matches production requirements, such as cut tape versus reel quantities. Cross-reference the exact ordering number against the manufacturer's latest datasheet to confirm pinout and electrical specifications before finalizing procurement.

Selection Notes

Select this component when a compact solution for high-voltage LED strings is needed. The integrated switch reduces external component count compared to discrete solutions. Verify that the input voltage range aligns with the system's power supply rails. Consider the thermal performance of the TSOT-23-5 package for the intended load current. Ensure compatibility with the desired dimming frequency and control interface requirements.

Part Context

This part belongs to the ZXLD1366 series of LED drivers from Diodes Incorporated. The series focuses on high-accuracy constant current regulation for automotive and industrial lighting. Similar parts in the family may offer different voltage ratings or packaging options. The ZXLD1366 series is distinct from lower voltage variants like the ZXLD1360, which supports lower input voltages.

Replacement Considerations

Diodes Incorporated recommends the AL8862QFGEAW-7 as a manufacturer-recommended substitute. Verify functional equivalence regarding pinout, electrical parameters, and package dimensions before substitution.