ISL97634IRT26Z-T

Overview

The ISL97634IRT26Z-T is a highly integrated PWM boost LED driver designed for white LED backlighting in small LCD panels. It operates within an input voltage range of 2.4 V to 5.5 V and supports dimming frequencies from DC to 32 kHz. The device integrates internal switches and utilizes SEPIC or step-up topology. It functions reliably across an operating temperature range of -40°C to +85°C with a maximum supply current of 1.5 mA.

Feature Summary

• Highly integrated PWM boost architecture suitable for compact display applications
• Wide PWM dimming control capability extending beyond the audible spectrum
• Internal switch integration eliminates external power components

Applications

• LED backlighting for 1.8-inch to 3.5-inch LCD panels
• Systems employing two to seven white LEDs
• Portable electronic devices requiring efficient power management

Procurement Notes

Verify component status as this specific part number may be obsolete. Confirm availability through authorized distributors or secondary markets if new production units are unavailable. Ensure compatibility with existing PCB layouts and thermal requirements before procurement.

Selection Notes

Select this driver for applications requiring precise PWM dimming without audible noise interference. Consider its suitability for low-voltage systems and small form-factor displays. Evaluate alternative active parts if current production status prevents sourcing.

Part Context

This component belongs to the Intersil/Renesas portfolio of power management ICs, specifically targeting display backlighting solutions. It represents a transition period product where Intersil designs were integrated into Renesas Electronics' catalog following corporate acquisitions.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify cross-reference data with official Renesas resources or authorized distributors for compatible alternatives.