ISL97687IRTZ-T

Overview

The ISL97687IRTZ-T is a four-channel LED driver IC manufactured by Renesas Electronics Corporation. It functions as a DC-DC boost controller designed for LED lighting applications. The device supports an input supply voltage range from 9V to 32V and delivers up to 160mA per output channel. Operating frequencies are adjustable between 200kHz and 1.2MHz. It accommodates both analog and PWM dimming methods. The component is housed in a 28-pin TQFN package with exposed pad, measuring 5mm x 5mm. It operates within a temperature range of -40°C to +105°C.

Feature Summary

• Four independent output channels for driving multiple LED strings
• Integrated boost topology for efficient power conversion
• Supports combined analog and pulse-width modulation dimming control
• Adjustable switching frequency for optimized external component selection

Applications

• LED backlighting systems
• General LED illumination circuits
• Portable electronic display drivers

Procurement Notes

Verify the current lifecycle status before design finalization, as this specific part number has been marked as obsolete or discontinued by the manufacturer. Confirm availability through authorized distributors or secondary markets if immediate procurement is required. Ensure that any replacement components maintain compatible pinouts and electrical specifications to avoid redesign efforts.

Selection Notes

Select this component when designing circuits requiring four isolated LED channels driven by a single boost converter. It is suitable for applications needing high efficiency and precise current regulation across multiple outputs. Consider the thermal performance of the TQFN package and ensure adequate PCB copper area for heat dissipation. Verify that the input voltage source remains stable within the specified 9V to 32V range during operation.

Part Context

This device belongs to the ISL97687 series of LED drivers from Renesas Electronics. It shares functional similarities with other members of the family but is distinguished by its specific output current rating and packaging configuration. The series targets compact lighting solutions where space constraints and multi-channel control are critical requirements for system integration.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.