ISL97691IRTZ-T

Overview

The ISL97691IRTZ-T is a single-cell Li-ion battery-powered LED driver IC from the Renesas ISL9769x series. It features four independent output channels with integrated 12-bit PWM dimming control for precise brightness regulation. The device operates within a supply voltage range of 2.4V to 5.5V and supports switching frequencies between 400kHz and 1.5MHz. Designed for surface-mount assembly, it utilizes a compact 16-TQFN package measuring 3mm x 3mm. The component includes internal switches and provides comprehensive protection mechanisms suitable for portable backlight applications.

Feature Summary

• Integrates four independent LED drive channels with dedicated 12-bit PWM dimming controls
• Supports single-cell lithium-ion battery power sources with wide input voltage tolerance
• Features adjustable switching frequency operation to optimize external component size
• Includes built-in protection circuitry for enhanced system reliability

Applications

• Portable electronic device backlighting systems
• Single-cell battery powered LED illumination modules
• Mobile phone and handheld device display backlights
• Compact consumer electronics lighting solutions

Procurement Notes

Verify current availability status as this component may be subject to end-of-life restrictions or limited stock conditions. Confirm exact ordering suffixes match required packaging formats such as cut tape or reel quantities. Ensure compatibility with existing design specifications regarding package dimensions and thermal requirements before finalizing procurement decisions.

Selection Notes

Select this component when designing circuits requiring multi-channel LED control from a single-cell power source. Consider the 16-TQFN package constraints for PCB layout optimization. Evaluate the 12-bit resolution requirements against application needs for smooth dimming transitions. Verify that the operating temperature range meets environmental specifications for the target deployment scenario.

Part Context

This part belongs to the ISL9769x family of LED drivers designed for portable applications. It shares architectural similarities with other members like the ISL97692 but differs in specific channel configurations and feature sets. The series targets manufacturers seeking integrated solutions for managing multiple LEDs efficiently while minimizing external component count in space-constrained designs.

Replacement Considerations

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