AS3649-ZWLM

Overview

The AS3649-ZWLM is a discontinued LED driver IC manufactured by ams OSRAM. It functions as a two-channel DC-DC boost converter designed for high-power LED applications, specifically camera flash and lighting systems. The device integrates internal switches and supports I2C dimming control. It operates within an ambient temperature range of -30°C to 85°C and utilizes a 13-WLCSP (2.25x1.52 mm) surface-mount package.

Feature Summary

• Integrates dual-channel output capability for simultaneous LED driving
• Features internal power switches to minimize external component count
• Supports digital I2C interface for precise brightness control

Applications

• Camera flash modules
• Portable device illumination
• Signage lighting

Procurement Notes

This specific part number is officially listed as no longer manufactured by the supplier. Verification of current availability requires checking distributor status for obsolete or end-of-life components. Sourcing may involve secondary market channels rather than direct manufacturer allocation. Confirm compliance documentation and material composition declarations are accessible before integration into new designs.

Selection Notes

Designers requiring active sourcing should evaluate alternative LED drivers from the same manufacturer that maintain current production status. Considerations must include pin compatibility, electrical specifications, and thermal performance relative to the original design constraints. Transitioning to a newer generation component may require schematic and layout adjustments to ensure functional equivalence.

Part Context

The AS3649-ZWLM belongs to the ams OSRAM portfolio of power management integrated circuits focused on photonics applications. As a legacy component, it represents earlier iterations of high-current LED driving technology. Its discontinuation reflects the manufacturer's product lifecycle management strategies, often driven by the introduction of more efficient or feature-enhanced successors in the LED driver category.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Engineers must consult official replacement guides or contact the manufacturer directly for validated cross-reference information.