ISL97801ARZ-T

Overview

The ISL97801ARZ-T is a high-power LED driver IC manufactured by Renesas Electronics Corporation. It integrates an analog and PWM dimming controller with a 1A output channel in a compact 20-QFN (4x4 mm) package. The device operates as a DC-DC regulator supporting both step-down (buck) and step-up (boost) topologies. Key electrical specifications include a maximum supply voltage of 16V, a maximum output voltage of 32V, and a switching frequency of 1MHz. It is designed for reliable performance and energy efficiency in single-channel LED applications.

Feature Summary

• Supports both analog and pulse-width modulation (PWM) dimming methods for precise light control.
• Integrates buck and boost converter capabilities within a single component.
• Delivers a regulated 1A output current for high-power LED loads.
• Utilizes a compact 20-pin QFN package to minimize board space.

Applications

• High-power LED lighting systems
• Automotive exterior lighting modules
• Industrial illumination fixtures

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging if required for automated assembly. Confirm RoHS compliance status through official documentation. Check for obsolescence notices as this part may be discontinued or superseded by newer alternatives. Ensure the 20-QFN footprint matches the target PCB design constraints.

Selection Notes

Select this component when a single-chip solution for high-current LED driving is needed. It is suitable for designs requiring flexible input voltage ranges due to its buck/boost capability. Consider the 1MHz switching frequency for trade-offs between component size and electromagnetic interference. Verify thermal management requirements for the QFN package under full load conditions.

Part Context

This part belongs to the Renesas (formerly Intersil) LED driver portfolio. It is classified as a power management integrated circuit specifically optimized for lighting applications. The manufacturer provides EDA/CAD models and datasheets for design integration. The product line focuses on energy-efficient solutions for modern solid-state lighting.

Replacement Considerations

Official alternative package types are available from the manufacturer. Users should consult the Renesas website for current substitute part numbers or updated versions of the ISL97801 series. Cross-reference pinouts and electrical characteristics before adopting any third-party equivalents.