IS32LT3131B-ZLA3-TR

Overview

The IS32LT3131B-ZLA3-TR is a 12-channel linear LED driver IC from Lumissil Microsystems, designed for automotive OLED lighting applications. It operates within a supply voltage range of 4.5 V to 40 V and supports PWM dimming. The device features UART, CAN-Lite, and SPI interfaces for configuration. It is housed in an eTSSOP-28 package (9.7mm x 6.4mm) and functions at a maximum operating temperature of +125°C.

Feature Summary

• Integrates twelve independent constant current channels for high-density LED arrays
• Supports multiple communication protocols including UART, CAN-Lite, and SPI
• Includes programmable PWM dimming capabilities for precise brightness control

Applications

• Automotive OLED lighting systems
• High-channel-count interior ambient lighting
• Complex dashboard illumination matrices

Procurement Notes

Verify the specific suffix ZLA3 against the manufacturer's latest datasheet to confirm pinout and electrical specifications match your design requirements. Confirm that the eTSSOP-28 footprint dimensions align with your PCB layout constraints before finalizing component selection.

Selection Notes

Select this component when designing systems requiring extensive channel counts for uniform lighting distribution. Ensure the power supply architecture accommodates the 4.5 V to 40 V input range. Verify that the chosen microcontroller can support the required UART or SPI interface speeds for reliable data transmission.

Part Context

This part belongs to Lumissil's IS32LT31xx series of linear LED drivers, which are optimized for automotive environments. The series provides scalable solutions for various lighting densities, ranging from single-channel to multi-channel configurations, ensuring compatibility with standard automotive communication buses.

Replacement Considerations

Check for direct substitutes within the IS32LT31xx family that offer compatible channel counts and interface options. Ensure any replacement maintains the same eTSSOP-28 package outline and thermal characteristics to avoid redesigning the host PCB.

FAQ

What communication interfaces does the IS32LT3131B support?

The device supports UART, CAN-Lite, and SPI interfaces for system integration.

What is the maximum operating temperature for this IC?

The maximum operating temperature is +125°C, suitable for automotive under-hood or harsh environments.