ISL97677IRZ-T

Overview

The ISL97677IRZ-T is an LED lighting driver IC manufactured by Renesas Electronics. It features eight output channels capable of driving LEDs with a maximum voltage of 45V and a current of 50mA per channel. The device operates on a supply voltage range of 4.5V to 26.5V and includes internal switches. It supports PWM dimming and SMBus/I2C control interfaces for brightness adjustment. The component is housed in a QFN-EP-32 package, has a power dissipation rating of 3.2W, and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates eight independent output channels for multi-zone LED control
• Supports dual dimming methods via PWM signals and SMBus/I2C digital interfaces
• Includes internal high-side switches to reduce external component count
• Provides precise current regulation for consistent LED brightness

Applications

• LED backlighting systems
• General LED illumination fixtures
• Automotive interior lighting modules

Procurement Notes

Verify the specific suffix 'T' indicates reel packaging when sourcing. Confirm RoHS compliance status through official datasheets as environmental declarations may vary by production batch. Ensure the supplier provides valid traceability documentation for automotive-grade components. Check for moisture sensitivity level requirements during storage and handling procedures prior to assembly.

Selection Notes

Select this part for designs requiring eight individually controllable LED channels within a compact footprint. Verify that the input supply voltage remains within the specified operational limits to ensure stable performance. Consider the thermal management capabilities of the QFN-EP-32 package if operating near maximum power dissipation thresholds. Ensure the host controller supports the required I2C or PWM signaling protocols for dimming control.

Part Context

This component belongs to the ISL97673 series of LED drivers from Renesas Electronics. The series focuses on providing integrated solutions for lighting applications with multiple outputs. Similar parts in the family may offer different channel counts or interface options while maintaining comparable regulatory and switching characteristics.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.