A6812ELW-T

Overview

The A6812ELW-T is a bipolar latching driver manufactured by Allegro MicroSystems, designed for high-side switching applications. It features a 1:20 input-to-output ratio and provides twenty outputs with a maximum output current of 40mA per channel. The device operates on a supply voltage range of 3V to 5.5V and supports load voltages up to 60V. It utilizes non-inverting parallel or serial interfaces and is housed in a 28-SOIC package. The component is rated for an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrates a 1:20 decoding ratio to control multiple loads from a single input signal
• Provides high-side bipolar latching functionality for sustained state maintenance without continuous power
• Supports both parallel and serial interface configurations for flexible system integration

Applications

• Automotive lighting systems requiring high-side switching
• Industrial load management circuits
• General purpose power distribution networks

Procurement Notes

Verify the specific suffix designation when ordering, as packaging variations exist between tape-and-reel and tube formats. Confirm RoHS compliance status, as different packaging options may have varying environmental certifications. Ensure the selected variant matches the required interface type and thermal specifications for the target application environment.

Selection Notes

Select this component for designs requiring high-side bipolar latching with a 1:20 decoding capability. Consider the 40mA output limit and 60V load voltage rating when sizing external components. Verify that the 28-SOIC package dimensions fit the PCB layout constraints and that the operating temperature range meets the system requirements.

Part Context

This part belongs to the A6812 series of bipolar latching drivers from Allegro MicroSystems. These devices are engineered for robust performance in automotive and industrial environments. The series offers various package options to accommodate different manufacturing and thermal needs while maintaining consistent electrical characteristics across the product line.

Replacement Considerations

Publicly documented substitutes include MAX6921AWI+ and MAX6921AWI+T from Analog Devices Inc./Maxim Integrated. Verify pinout compatibility and electrical parameter alignment before transitioning to these alternatives.