A6812ELWTR-T

Overview

The A6812ELWTR-T is a bipolar latch driver manufactured by Allegro MicroSystems, designed for high-current load switching applications. It features a 1:20 input-to-output ratio and provides twenty independent high-side outputs. The device operates with a supply voltage range of 3V to 5.5V and supports load voltages up to 60V. Each output channel delivers a maximum current of 40mA. It utilizes non-inverting inputs and interfaces via parallel or serial protocols. The component is housed in a 28-SOIC surface-mount package and functions within an ambient temperature range of -40°C to +85°C.

Feature Summary

• Provides twenty independent high-side bipolar latch driver outputs
• Features a 1:20 input-to-output ratio for efficient control
• Supports both parallel and serial interface protocols
• Operates with non-inverting input logic

Applications

• High-current load switching systems
• Bipolar motor drive circuits
• Industrial power distribution networks

Procurement Notes

Verify the specific suffix configuration against official datasheets to ensure correct packaging and electrical characteristics. Confirm RoHS compliance status as it varies by production batch. Check for obsolescence notices or product change notifications before finalizing procurement plans. Ensure the selected variant matches the required interface protocol and thermal specifications for the target application environment.

Selection Notes

Select this component when a high number of independently controlled high-side outputs are required from a minimal number of control lines. The 1:20 ratio significantly reduces microcontroller pin usage. Verify that the 40mA per channel output current meets the load requirements. Ensure the system design accommodates the 60V load voltage rating and the specified operating temperature range for reliable performance.

Part Context

This part belongs to the A6812 family of bipolar latch drivers from Allegro MicroSystems. These devices are engineered for applications requiring robust switching capabilities with simplified control interfaces. The family typically offers various package options and suffixes to accommodate different manufacturing and environmental needs while maintaining consistent core electrical performance.

Replacement Considerations

Publicly documented substitutes include MAX6921AWI+ and MAX6921AWI+T from Analog Devices Inc./Maxim Integrated. Verify pin compatibility and electrical specifications before substitution.