AS1105WL

Overview

The AS1105WL is a serial interface LED driver designed for controlling seven-segment numeric displays with decimal points, supporting up to four digits. It operates within a supply voltage range of 2.7V to 5.5V and features a 20-SOIC surface-mount package. The device integrates a conventional four-wire serial interface for programming and configuration, enabling efficient control of display segments without requiring complex external circuitry.

Feature Summary

• Supports control of up to four-digit seven-segment displays with decimal point functionality
• Utilizes a standard four-wire serial interface for simplified programming and data transmission
• Operates on a wide supply voltage range from 2.7V to 5.5V for flexible power integration

Applications

• Seven-segment numeric display systems
• Digital readout devices
• Instrumentation panels

Procurement Notes

Verify the specific suffix (WL) against the manufacturer's current datasheet to confirm pinout and packaging details. Check for end-of-life notices or product change notifications, as older variants in this series may have been discontinued or replaced by updated versions. Ensure compatibility with the host microcontroller's serial protocol specifications before procurement.

Selection Notes

Select this component when a dedicated driver for small-format numeric displays is required. It is suitable for applications needing low pin count solutions via serial communication. Consider the 20-SOIC package constraints for PCB layout. Verify that the target application does not require more than four digits or additional segment types not supported by this specific driver architecture.

Part Context

The AS1105WL belongs to the AS1105/AS1106 series of LED drivers from ams OSRAM. These components are specialized integrated circuits aimed at simplifying the design of numeric display interfaces. The WL suffix typically denotes a specific tape-and-reel or tube packaging variant within the SOIC family, distinct from other package options like DIP or QFN found in related parts.

Replacement Considerations

Public confirmed substitute part numbers: None identified in available documentation.