AS1108WL

Overview

The AS1108WL is a discontinued LED driver IC manufactured by ams OSRAM AG. It features a 20-SOIC surface-mount package and supports 4-digit, 7-segment plus decimal point displays. The device operates on a supply voltage range of 2.7V to 5.5V with a typical supply current of 330 mA. It utilizes a 4-wire serial interface compatible with Microwire, QSPI, and SPI protocols. The component functions within an operating temperature range of 0°C to 70°C.

Feature Summary

• Supports 4-digit, 7-segment LED displays with decimal point configuration
• Compatible with standard 4-wire serial communication interfaces including Microwire, QSPI, and SPI
• Operates within a wide supply voltage range from 2.7V to 5.5V

Applications

• Digital display drivers for consumer electronics
• Industrial control panel indicators
• Appliance status readouts

Procurement Notes

This component has been officially declared obsolete by the manufacturer. Verification of availability should focus on surplus distributors or secondary market sources rather than direct manufacturing channels. Confirm the specific suffix and revision level when sourcing replacements, as legacy stock may vary in packaging or minor specifications compared to original production runs.

Selection Notes

Engineers requiring this functionality must identify alternative drivers due to the part's end-of-life status. Selection criteria should prioritize pin-compatible or functionally equivalent devices that support similar serial interfaces and display configurations. Verify that replacement components meet the required voltage and thermal specifications for the intended application environment.

Part Context

The AS1108WL belongs to the AS1108 series of LED display drivers produced by ams OSRAM. This series was designed for applications requiring efficient management of multi-digit seven-segment displays. The WL suffix typically denotes specific packaging or tape-and-reel variations within the product line, though the core functionality remains consistent with the base AS1108 architecture.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Users must consult manufacturer cross-reference guides or engineering change notices for approved alternatives.