AS3661-BWLT-500

Overview

The AS3661-BWLT-500 is a programmable LED driver IC from ams OSRAM, designed for high-density lighting applications. It integrates an I2C interface for digital control and regulation of up to nine LED channels. The device utilizes a 25-WLCSP package with dimensions of 2.5x2.5 mm, enabling compact board layouts. It supports regulated current output suitable for white LEDs in mobile and wearable devices.

Feature Summary

• Integrates I2C digital interface for precise channel regulation and dimming control
• Compact 25-WLCSP package design facilitates space-constrained PCB layouts
• Supports multi-channel LED driving with integrated switching regulator functionality

Applications

• Mobile device front and rear camera flash systems
• Wearable technology illumination modules
• Compact consumer electronics indicator lighting

Procurement Notes

Verify the specific ordering suffix against official datasheets to confirm pinout and electrical characteristics. Ensure compatibility with I2C bus voltage levels used in the target system. Confirm package marking codes match the intended revision. Cross-reference RoHS compliance status with current manufacturer declarations before integration into final products.

Selection Notes

Select this component when space constraints require a small footprint solution for multi-channel LED control. Consider its I2C interface requirements for system architecture planning. Evaluate thermal management needs based on the WLCSP package type. Verify that the target application benefits from the integrated regulation features rather than discrete solutions.

Part Context

This part belongs to the ams OSRAM LED driver portfolio, focusing on miniaturized power management for photonics. It complements their broader range of sensor and lighting solutions by providing controlled drive capabilities for compact optical modules. The series targets markets requiring high reliability in small form factors.

Replacement Considerations

Check for direct substitutes within the same family or compatible pin-to-pin alternatives. Verify functional equivalence regarding channel count and I2C protocol support. Ensure thermal and electrical specifications meet or exceed original requirements when considering cross-brand replacements.