AS1113-BSSU

Overview

The AS1113-BSSU is a linear LED driver IC manufactured by ams OSRAM, designed for driving up to 16 LEDs. It features a fast serial interface and provides 16 constant current outputs with a maximum output current of 50 mA per channel. The device operates within a supply voltage range of 3 V to 5.5 V and supports a maximum operating frequency of 50 MHz. It is housed in a 24-pin SSOP package and functions reliably across an ambient temperature range of -40°C to +85°C.

Feature Summary

• Provides 16 independent constant current outputs for direct LED driving
• Utilizes a fast serial interface for efficient data transmission and control
• Supports linear shift register dimming functionality for brightness adjustment

Applications

• LED signage displays
• Segmented LED indicators
• General-purpose LED lighting arrays

Procurement Notes

Verify the specific suffix BSSU against the manufacturer datasheet to confirm packaging type, as suffixes often denote tape-and-reel or tube variations. Confirm end-of-life status and availability through authorized distributors, as discontinuation notices may affect long-term sourcing. Ensure compatibility with existing serial communication protocols before integration.

Selection Notes

Select this component when a high-channel-count driver with simple serial control is required. The 50 mA output capability suits standard indicator LEDs but may require external transistors for higher-power applications. Verify that the system power supply remains within the 3 V to 5.5 V operational window to ensure stable performance and prevent damage.

Part Context

This part belongs to the AS1113 family of LED drivers from ams OSRAM. The family includes variants such as the AS1113-BSST, which shares similar electrical characteristics but may differ in packaging or shipping configuration. These devices are engineered for cost-effective, space-constrained LED control solutions requiring minimal external components.

Replacement Considerations

The AS1113-BSST is a related variant within the same product family. Verify pinout compatibility and functional equivalence before substitution. Check if the alternative suffix indicates a different packaging format or manufacturing lot that might impact assembly processes.