IS32FL3265B-ZLA3-TR

Overview

The IS32FL3265B-ZLA3-TR is an LED lighting driver IC featuring 18 high-voltage constant current channels. It supports boost and buck topologies with an adjustable output voltage. The device operates on a supply voltage between 3 V and 5.5 V, delivering up to 60 mA per channel. It functions within a temperature range of -40°C to +125°C and utilizes a 28-pin eTSSOP package.

Feature Summary

• Integrates 18 independent constant current channels for uniform LED control
• Supports both boost and buck converter topologies for flexible power management
• Includes PWM dimming capability for precise brightness adjustment

Applications

• Automotive exterior lighting systems
• Industrial illumination fixtures
• High-density LED matrix displays

Procurement Notes

Verify the specific suffix ZLA3-TR against the manufacturer's latest datasheet to confirm package dimensions and tape-and-reel specifications. Ensure compatibility with the target PCB footprint, as the component uses an exposed pad eTSSOP-28 package requiring adequate thermal relief design.

Selection Notes

Select this component when designing circuits requiring multiple high-voltage LED channels from a low-voltage supply. The integrated boost/buck topology allows efficient driving of series LED strings. Consider the 60 mA output limit and thermal dissipation requirements inherent to the 18-channel configuration in the compact package.

Part Context

This part belongs to Lumissil’s IS32FL series of LED drivers, which are optimized for automotive and industrial applications. The series emphasizes high integration and reliability, providing solutions for complex lighting architectures while reducing external component count and board space requirements.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pin-to-pin compatibility and electrical parameters before considering alternative manufacturers or different model numbers within the same family.