IS32LT3124E-ZLA3-TR

Overview

The IS32LT3124E-ZLA3-TR is a quad-channel linear LED driver IC manufactured by Lumissil Microsystems. It provides constant current output with PWM dimming capability and operates within an input voltage range of 5 V to 28 V. The device delivers up to 150 mA per channel and is housed in a 16-pin eTSSOP package with exposed pad. It supports dynamic headroom control, fault reporting, and auto-recovery functions.

Feature Summary

• Quad-channel linear constant current architecture for multi-string LED applications
• Integrated dynamic headroom control (DHC) for optimized power efficiency
• Built-in fault detection with one-fail-all-fail logic and auto-recovery mechanism

Applications

• General illumination lighting systems
• LED backlighting modules
• Automotive interior lighting circuits

Procurement Notes

Verify the specific suffix ZLA3-TR against the manufacturer's latest datasheet to confirm pinout and thermal specifications. Ensure the design accommodates the 16-eTSSOP package dimensions and exposed pad soldering requirements for proper heat dissipation and electrical connection.

Selection Notes

Select this component when a single IC solution is required to drive four independent LED strings with precise current regulation. The integrated DHC feature makes it suitable for applications where input voltage varies or where minimizing power loss across the driver is critical for system efficiency.

Part Context

This part belongs to the IS32LT3124 family of linear LED drivers from Lumissil Microsystems. It shares functional similarities with variants like the IS32LT3124B and IS32LT3124F but differs in specific electrical characteristics and packaging details defined by the E suffix and ZLA3-TR ordering code.

Replacement Considerations

Direct substitutes include IS32LT3124B-ZLA3-TR and IS32LT3124F-ZLA3-TR. Verify compatibility regarding output current limits and package footprint before replacing.