IS32FL3726A-ZLA3-TR

Overview

The IS32FL3726A-ZLA3-TR is a 16-channel LED driver IC manufactured by Lumissil Microsystems, designed for roof lighting applications. It operates within a supply voltage range of 3 V to 5.5 V and delivers a constant output current of 27 mA per channel. The device features a 30 MHz operating frequency and supports surface-mount installation in an eTSSOP-24 package (7.8mm x 6.4mm). It functions without dimming capabilities and dissipates up to 3.56 W of power. The component is rated for industrial temperatures from -40°C to +125°C and includes humidity sensitivity management.

Feature Summary

• Provides sixteen independent constant current output channels for uniform LED illumination
• Integrates linear shift register architecture with PWM dimming control logic
• Supports wide input voltage operation suitable for various automotive electrical systems

Applications

• Roof lighting systems
• Automotive interior illumination
• General LED matrix driving

Procurement Notes

Verify the specific suffix ZLA3-TR against official Lumissil documentation to confirm tape-and-reel packaging specifications and moisture sensitivity level requirements. Ensure the ordering quantity aligns with manufacturer standard pack sizes. Confirm that the eTSSOP-24 footprint matches the target PCB design constraints before finalizing procurement orders.

Selection Notes

Select this component when a fixed 16-channel constant current solution is required for non-dimming or basic PWM-controlled LED arrays. The 27 mA output current suits low-to-medium brightness indicator applications. Consider the 3 V to 5.5 V supply range compatibility with existing system power rails. Evaluate the thermal dissipation limits relative to the expected ambient temperature conditions in the enclosure.

Part Context

This part belongs to the Lumissil IS32FL series of LED display and lighting drivers. It complements other multi-channel solutions like the IS32FL3738 and IS32FL3740, offering a mid-range channel count. The series focuses on providing integrated shift register functionality to reduce microcontroller overhead in lighting control architectures.

Replacement Considerations

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