A6595KLWTR

Overview

The A6595KLWTR is a discontinued 8-bit serial-input DMOS power driver manufactured by Allegro MicroSystems. It integrates an 8-bit CMOS shift register, data latches, control circuitry, and eight N-channel DMOS power outputs in a single package. The device operates with a supply voltage range of 4.5V to 5.5V and supports load voltages up to 50V. It features a latch-type interface with non-inverting inputs and provides a maximum output current of 250mA per channel. The component utilizes a 20-SOIC surface-mount package and is rated for an operating temperature range of -40°C to +125°C.

Feature Summary

• Integrates an 8-bit serial shift register with parallel output latches for simplified control interfacing
• Provides eight independent low-side N-channel DMOS power drivers capable of handling medium-current loads
• Features a robust 50V minimum output clamp voltage to protect against inductive load transients

Applications

• Driving relays and solenoids in automotive or industrial systems
• Controlling high-voltage peripheral power loads such as lamps or heaters
• Replacing legacy TPIC6595N and TPIC6595DW components in existing designs

Procurement Notes

This specific part number is officially discontinued and no longer in production. Verification of availability must focus on surplus distributors or secondary market sources rather than direct manufacturer allocation. Engineers should confirm the authenticity of stock from authorized channels due to the obsolescence status. Procurement planning requires immediate attention to alternative sourcing strategies given the end-of-life designation.

Selection Notes

Designers requiring this functionality must transition to equivalent modern alternatives due to the discontinuation of the A6595 series. Selection criteria should prioritize pin-compatible replacements that maintain the 8-bit serial interface and 50V load rating. Key parameters to match include the 250mA output current capability and the 20-SOIC package footprint to ensure mechanical compatibility during retrofitting or new design implementations.

Part Context

The A6595KLWTR belongs to the A6595 family of DMOS power drivers designed for applications requiring multiple switched outputs controlled via a simple serial interface. This family was widely used in automotive body electronics and industrial automation for driving inductive loads. The KLW suffix denotes the specific tape-and-reel packaging variant within the 20-SOIC form factor, distinguishing it from tube-packaged versions like the A6595KLW.

Replacement Considerations

Direct substitutes include the Texas Instruments TPIC6595DWR and TPIC6595DWRG4, which offer functional equivalence. STMicroelectronics L6225D is listed as a similar alternative. Designers should verify electrical parameter alignment and thermal performance when migrating to these replacement part numbers.