A6812SLWTR

Overview

The A6812SLWTR-T is a 20-bit serial source driver manufactured by Allegro Microsystems. It integrates CMOS shift registers, data latches, and control circuitry with bipolar sourcing outputs. The device operates within a supply voltage range of 3V to 5.5V and supports an increased data-input rate compared to older UCN/UCQ5812-F variants. It features controlled output slew rates and is housed in a 28-SOIC package. Operating temperatures range from -40°C to +85°C.

Feature Summary

• Integrates 20-bit CMOS shift registers with accompanying data latches for sequential data processing.
• Features bipolar sourcing outputs designed for driving external loads directly.
• Includes control circuitry that enables increased data-input rates relative to legacy counterparts.

Applications

• High-density LED matrix displays requiring serial data input
• Industrial control systems utilizing source-driven logic interfaces
• Automotive instrumentation panels with serial communication requirements

Procurement Notes

Verify the exact suffix (e.g., -T) against official datasheets to confirm tape-and-reel packaging specifications. Confirm RoHS compliance status as some Allegro SOIC variants may not meet current standards. Check for active production status or obsolescence notices before finalizing procurement plans.

Selection Notes

Select this component when a high-channel-count serial interface is required for sourcing applications. Ensure the system design accommodates the 28-SOIC footprint and thermal dissipation needs. Verify that the input signal timing meets the specified data-rate requirements for reliable latch operation.

Part Context

This part belongs to Allegro's series of integrated source drivers, combining digital logic functions with power output stages. It serves as a bridge between low-voltage digital controllers and higher-current load requirements, simplifying board layout by reducing the need for discrete buffer components.

Replacement Considerations

The A6812SLWTR-T is functionally comparable to the discontinued UCN5812 and UCQ5812 families. When substituting, verify pin compatibility and ensure the replacement supports the required 20-bit depth and serial interface protocol.