ZXLD1374EST20TC

Overview

The ZXLD1374EST20TC is a high-accuracy LED driver IC from Diodes Incorporated, designed for medium-voltage applications. It integrates a power switch capable of delivering up to 1.5 A output current. The device supports Buck, Boost, and Buck-Boost topologies with an adjustable output voltage. It operates within a supply voltage range of 6.3 V to 60 V at a fixed switching frequency of 1 MHz. Qualified under AEC-Q100 standards, it functions reliably between -40°C and +125°C.

Feature Summary

• Supports Buck, Boost, and Buck-Boost converter topologies for flexible LED string configurations
• Integrates a high-current internal power switch rated for 1.5 A continuous operation
• Enables precise LED brightness control through PWM dimming capabilities
• Meets automotive reliability requirements via AEC-Q100 qualification

Applications

• Automotive exterior lighting systems including headlights and fog lamps
• Interior vehicle illumination circuits requiring constant current regulation
• General-purpose LED lighting drivers in industrial or commercial settings

Procurement Notes

Verify the specific suffix EST20TC against official Diodes Incorporated documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with your PCB footprint and reflow profile. Confirm that the AEC-Q100 grade meets your system's environmental and durability requirements before finalizing procurement.

Selection Notes

Select this component when designing circuits requiring a single-channel solution for medium-voltage LED strings. It is suitable for applications needing both step-up and step-down voltage conversion capabilities. Consider its 1.5 A current limit and 60 V input range when sizing external components like inductors and capacitors for your specific topology.

Part Context

This part belongs to the ZXLD1374 family of high-accuracy LED drivers. It is manufactured by Diodes Incorporated and is commonly distributed through major electronics retailers such as Mouser Electronics and DigiKey. The device is packaged in a 20-TSSOP-EP form factor, facilitating surface-mount assembly on printed circuit boards.

Replacement Considerations

Check for ZXLD1374 variants with different suffixes if alternative packaging or temperature grades are required. Verify pin-to-pin compatibility with existing designs before substituting.