AS3668-BWLT

Overview

The AS3668-BWLT is a high-performance LED driver IC from the OSRAM Opto Semiconductors series, designed for demanding applications. It features I²C dimming control and multiple outputs. The device operates as a DC-DC converter utilizing boost and switched-capacitor (charge pump) topologies. It supports an output voltage up to 25V and delivers a channel current of 900mA. The component is housed in a 25-UFBGA WLCSP package.

Feature Summary

• Integrates I²C interface for precise digital dimming control
• Combines boost and switched-capacitor charge pump topologies
• Supports high-output current for demanding LED loads

Applications

• Mobile device camera flash systems
• Smartphone backlighting circuits
• High-brightness LED illumination modules

Procurement Notes

Verify the specific suffix BWLT against official datasheets to confirm pinout and thermal characteristics. Confirm end-of-life status with the manufacturer prior to design-in, as availability may be restricted. Ensure PCB layout accommodates the WLCSP package requirements for reliable soldering and heat dissipation during operation.

Selection Notes

Select this component when high-efficiency power conversion is required alongside precise digital control. The integrated charge pump allows for flexible input voltage ranges. Evaluate thermal performance within the WLCSP footprint. Compare against the AS3665 and AS3661 series if different output configurations or package sizes are needed for the specific application constraints.

Part Context

This part belongs to the OSRAM Opto Semiconductors LED driver family, which focuses on compact solutions for mobile electronics. The AS3668 variant specifically targets applications requiring high current density and efficient power management in small form factors. It complements other drivers in the series by offering a balance of power handling and digital integration.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult the manufacturer for direct replacements or evaluate the AS3665-ZWLT and AS3661-BWLT for potential functional equivalents, subject to package and electrical compatibility verification.