A6812SEPTR

Overview

The A6812SEPTR-T is a bipolar latch driver manufactured by Allegro MicroSystems, designed for power switching applications. It features a 1:20 input-to-output ratio with 20 high-side outputs. The device operates on a supply voltage of 3V to 5.5V and supports load voltages up to 60V. Each output provides a maximum current of 40mA. It utilizes parallel and serial interfaces with non-inverting input logic. The component is housed in a 28-PLCC package measuring 11.51x11.51mm and functions within a temperature range of -20°C to 85°C.

Feature Summary

• Supports 1:20 input-to-output ratio for expanded control capabilities
• Provides high-side bipolar output configuration
• Integrates both parallel and serial interface options

Applications

• Automotive lighting systems
• Industrial load switching
• General purpose power distribution

Procurement Notes

Verify the specific suffix 'T' for tape-and-reel packaging when ordering, as it differs from bulk or cut-tape variants. Confirm RoHS3 compliance status for environmental regulations. Check for obsolescence notices, as this part may be discontinued. Ensure the 28-PLCC footprint matches the target PCB design. Validate that the 60V load rating meets system requirements.

Selection Notes

Select this component for applications requiring a single input to control multiple high-side loads efficiently. The 40mA output current is suitable for driving smaller loads or indicator circuits. Consider the 28-PLCC package size for space-constrained designs. Evaluate the need for serial versus parallel interface based on pin count availability. Ensure the operating temperature range aligns with the intended environment.

Part Context

This device belongs to the A68xx series of latch drivers from Allegro MicroSystems. These components are engineered for robust power management in demanding environments. The series typically offers integrated protection features and flexible interface options. This specific model focuses on high-side switching with a moderate output current capability.

Replacement Considerations

The MAX6921AQI+ from Analog Devices Inc./Maxim Integrated is listed as an available substitute. Verify pin compatibility and electrical specifications before substitution.