A6841ELWTR-20-T

Overview

The A6841ELWTR-20-T is a medium-power serial-input latched sink driver integrated circuit manufactured by Allegro MicroSystems. It utilizes the DABiC-5 merged bipolar/CMOS/DMOS process to combine low-power CMOS logic inputs with bipolar output power drivers. The device features an 8-channel output configuration with a 1:8 input-to-output ratio, supporting both parallel and serial interfaces. It operates within a supply voltage range of 3V to 5.5V and supports load voltages up to 50V. Each output channel provides a maximum current of 500mA in a low-side bipolar configuration. The component is housed in a 20-SOIC surface-mount package and functions reliably across an operating temperature range of -20°C to +85°C.

Feature Summary

• Integrates low-power CMOS logic inputs with bipolar output power drivers for enhanced interface flexibility
• Supports dual-mode operation with both parallel and serial input capabilities
• Features latched sink driver architecture for stable peripheral power control

Applications

• Peripheral power driver applications requiring interface flexibility
• Medium-power switching circuits beyond standard logic buffer reach
• Serial or parallel controlled load driving systems

Procurement Notes

Verify the specific suffix 'ELWTR-20-T' against official Allegro MicroSystems documentation to confirm exact packaging, tape-and-reel specifications, and regional compliance status. Ensure the selected variant matches the required 20-SOIC footprint and thermal characteristics for your design. Cross-reference the datasheet for any recent product change notices affecting pinout or electrical parameters before finalizing procurement.

Selection Notes

Select this component when a medium-power driver with combined serial and parallel interface options is required. The DABiC-5 technology offers a balance between CMOS logic compatibility and bipolar drive strength. Consider the 500mA per channel capability and 50V load voltage rating for appropriate load matching. Verify that the 20-SOIC package dimensions fit the PCB layout constraints and that the -20°C to +85°C temperature range meets environmental requirements.

Part Context

The A6841 belongs to the A68xx series of medium-power serial-input latched sink drivers from Allegro MicroSystems. This family leverages the proprietary DABiC-5 process to merge bipolar and CMOS technologies. Similar parts in the series include the A6821 and A6841 variants, which share the same core technology but may differ in pin counts, package types, or specific interface configurations. These devices are designed for applications needing more flexibility than standard logic buffers provide.

Replacement Considerations

Publicly confirmed substitute part numbers for the A6841ELWTR-20-T are not available in the provided reference data. Consult Allegro MicroSystems official resources for direct replacements or pin-compatible alternatives.