AS3643-ZWLT-500

Overview

The AS3643-ZWLT-500 is a regulated LED driver IC manufactured by ams OSRAM. It utilizes a Step-Up (Boost) DC-DC regulator topology with an integrated internal switch, designed for driving high-power LEDs. The device features I2C interface control for regulation and is packaged in a 13-ball Wafer-Level Chip Scale Package (WLCSP). This component is currently classified as obsolete.

Feature Summary

• Integrates a boost converter topology with an internal power switch for efficient LED driving
• Supports digital configuration and regulation via an I2C communication interface

Applications

• High-power LED illumination systems
• Automotive lighting applications
• Industrial lighting solutions

Procurement Notes

Verify the current lifecycle status of this component before design integration. Official documentation indicates that the AS3643-ZWLT-500 is obsolete. Engineers should consult the manufacturer's official notifications or authorized distributors to confirm end-of-life timelines and identify suitable replacement parts within the same product family.

Selection Notes

Select this component only if legacy compatibility is required, as it is no longer in active production. Ensure the application circuit supports the boost topology and I2C control requirements. Evaluate alternative drivers from the manufacturer for new designs to ensure long-term supply availability and support.

Part Context

This part belongs to the AS364x series of LED drivers from ams OSRAM. These devices are engineered for precise current regulation in demanding environments. The specific model integrates control logic and power stages into a compact footprint, suitable for space-constrained optical modules.

Replacement Considerations

Public records indicate the AS3643-ZWLT-500 is obsolete. Check for direct replacements such as the AS3647-ZWLT-500 or other updated variants in the AS364x series. Verify pinout and electrical parameter compatibility before substitution.