ISL97698IIZ-T

Overview

The ISL97698IIZ-T is a dual-channel LED driver IC featuring a step-up DC-DC boost regulator. It supports analog, I2C, and PWM dimming methods with an output current of 25mA per channel. The device operates at a switching frequency of 850kHz and functions within a temperature range of -40°C to 85°C. Packaged in a 12-WLCSP (1.69x1.39) format, it is designed for efficient backlighting applications.

Feature Summary

• Integrates a high-efficiency step-up DC-DC boost regulator for single-cell Li-ion battery operation
• Supports multiple dimming control interfaces including analog, I2C, and PWM
• Provides precise current regulation for dual-channel LED strings

Applications

• Smartphone backlighting
• Portable electronic device illumination
• Single-cell Li-ion battery powered systems

Procurement Notes

Verify component authenticity through authorized Renesas distributors or certified partners. Confirm the specific suffix 'IIZ-T' matches the required package and tape-and-reel specifications. Check for end-of-life status or obsolescence notifications from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component for designs requiring a compact solution for dual-string LED backlighting driven by a single lithium-ion cell. Ensure the application utilizes I2C or PWM control signals compatible with the driver's interface requirements. Verify that the 25mA output current meets the target LED forward current specifications.

Part Context

This part belongs to the ISL9769x series of LED lighting drivers from Renesas/Intersil. It is specifically engineered for portable consumer electronics where space constraints and power efficiency are critical. The WLCSP package allows for minimal footprint on mobile device PCBs.

Replacement Considerations

Consult official Renesas documentation for qualified pin-to-pin replacements or functional equivalents. Verify compatibility with existing system firmware if I2C addressing remains unchanged.