AS3492-ZWLM

Overview

The AS3492-ZWLM is a digital LED driver IC from the ams OSRAM portfolio, designed for RGB lighting applications. It features a boost topology with an internal switch and five output channels, each capable of delivering up to 25mA. The device operates on a supply voltage range of 2.5V to 5.5V and supports a switching frequency of 2MHz. Packaged in a compact 12-WLCSP (1.7x1.4mm) surface-mount format, it is optimized for backlighting and general illumination tasks within a temperature range of -30°C to 85°C.

Feature Summary

• Integrates a DC-DC boost regulator with an internal power switch for efficient LED driving
• Provides five independent output channels for multi-color or complex lighting configurations
• Supports digital control interfaces for precise current regulation and dimming

Applications

• Backlighting systems for displays and indicators
• RGB LED color mixing modules
• Compact portable device illumination

Procurement Notes

Verify the specific manufacturer designation, as the model number appears associated with 'amass' in some distributor records while the brand is listed as ams-OSRAM USA INC. Confirm the package type matches the 12-WLCSP specification and ensure the component status is active for your project requirements. Cross-reference the datasheet for pinout compatibility before integration.

Selection Notes

Select this component when a small form factor is required for driving multiple LED channels from a low-voltage source. The integrated boost converter eliminates the need for external inductors in some designs, saving board space. Ensure the application voltage stays within the 2.5V to 5.5V range and that the thermal environment remains within the specified operating limits.

Part Context

This part belongs to the LED driver category, specifically focusing on regulated current sources for light-emitting diodes. It complements other optical components like photodiodes and sensors by providing the necessary drive electronics for illumination systems. The WLCSP packaging aligns with trends toward miniaturization in mobile and wearable technology sectors.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consider checking for generic 5-channel LED drivers with similar WLCSP footprints if direct substitution is needed, but verify electrical parameters carefully.