A6A595KA

Overview

The A6A595KA is a discontinued power switch and driver integrated circuit manufactured by Allegro MicroSystems. It features an 8-channel N-channel output configuration with a 1:8 input-to-output ratio. The device supports both parallel and serial interface protocols for control. It is designed for low-side switching applications, capable of handling a maximum load voltage of 50V and delivering a maximum output current of 350mA per channel. The typical on-resistance is specified at 1 ohm. The component operates within a supply voltage range of 4.5V to 5.5V and functions across a junction temperature range of -40°C to 125°C. It is housed in a 20-pin DIP package.

Feature Summary

• Eight-channel N-channel power switching capability with fixed current limiting protection
• Supports both parallel and serial interface communication modes
• Low-side output configuration suitable for general load driving

Applications

• Industrial load switching systems
• Automotive accessory control circuits
• General purpose power distribution networks

Procurement Notes

This component has been officially discontinued and is no longer in production. Verification of availability should focus exclusively on surplus or secondary market sources rather than direct manufacturer channels. Buyers must confirm the authenticity and storage history of any available units due to the end-of-life status. Cross-referencing with approved replacement parts from other manufacturers is recommended for new designs.

Selection Notes

Designers requiring this functionality should evaluate alternative components as the A6A595KA is obsolete. Key selection criteria for replacements include matching the 8-channel architecture, ensuring compatibility with the 1:8 input ratio, and verifying that the substitute supports both serial and parallel interfaces. The replacement must accommodate the 50V load voltage and 350mA output current requirements while fitting the desired package type.

Part Context

The A6A595KA belongs to the A6A595 family of power drivers from Allegro MicroSystems. This series was engineered for applications requiring multiple independent low-side switches controlled via standard digital interfaces. The device integrates protection features such as fixed current limiting to safeguard connected loads. Its design emphasizes simplicity in interfacing while providing robust power handling for industrial and automotive environments.

Replacement Considerations

The TPIC6A595NE from Texas Instruments is documented as a similar replacement part for the A6A595KA. Engineers should verify pinout compatibility and electrical specifications before substitution.