IS32LT3365A-LQLA3-TR

Overview

The IS32LT3365A-LQLA3-TR is a high-brightness LED dimmer designed for automotive LED array systems. It integrates a DC/DC regulator supporting step-down (buck) and step-up (boost) topologies with 16 output channels. The device delivers up to 1.5A per channel and operates on an I2C or PWM interface. It functions within a supply voltage range of 2.7V to 5.5V, with a maximum input voltage of 55V. The component supports a switching frequency of 2MHz and features an operating temperature range from -40°C to +150°C TJ.

Feature Summary

• Integrates buck and boost DC/DC converter topologies for flexible LED drive configurations
• Provides sixteen independent constant current output channels capable of high-current drive
• Supports communication via I2C bus and PWM dimming signals for system control

Applications

• Automotive LED array lighting systems
• High-brightness automotive illumination modules
• Scalable automotive lamp control architectures

Procurement Notes

Verify the specific suffix LQLA3 against the manufacturer's latest datasheet to confirm package dimensions and tape-and-reel specifications. Ensure the design accommodates the 48-pin eLQFP package thermal requirements given the high output current capabilities. Confirm that the target application environment remains within the specified junction temperature limits during operation.

Selection Notes

Select this component when designing automotive LED arrays requiring integrated power regulation and multiple high-current channels. The choice is appropriate for applications needing both buck and boost conversion capabilities within a single controller. Consider the 48-pin eLQFP footprint and the requirement for I2C or PWM control interfaces when evaluating system integration constraints.

Part Context

This part belongs to Lumissil's automotive LED driver portfolio, specifically targeting high-brightness array systems. It complements other linear and matrix drivers by offering switched-mode power delivery for efficient high-power applications. The series emphasizes compliance with automotive environmental standards and diagnostic features suitable for vehicle lighting networks.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Verify compatibility with existing PCB layouts and control logic before considering alternative components from the same manufacturer family.