A6A595KA Power Switch Driver - Equivalent & Substitute Parts

Part Overview

The A6A595KA is an obsolete power management integrated circuit manufactured by Allegro MicroSystems, designed as a power switch/driver with 1:8 N-channel configuration in a 20-DIP package. This latched driver IC provides low-side switching capability with 350mA maximum output current and operates across a 4.5V to 5.5V supply voltage range. Due to its obsolete product status, identifying functionally compatible substitute components is essential for system redesign, legacy product support, and continued manufacturing operations.

Substiute Parts

A6A595KA

Allegro MicroSystemsIn Stock: 1150A6A595KA Datasheet

Current PartRFQ

TPIC6A595NE

Texas InstrumentsIn Stock: 1503TPIC6A595NE Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the A6A595KA is determined by the following critical parameters:

• Package Compatibility: 20-DIP (0.300", 7.62mm) through-hole mounting
• Output Configuration: 8-bit parallel output capability
• Supply Voltage Range: 4.5V ~ 5.5V operation
• Operating Temperature Range: -40°C ~ 125°C
• Interface Type: Serial input with parallel output capability
• Load Voltage Rating: Minimum 50V maximum load voltage support

The TPIC6A595NE from Texas Instruments meets these substitution criteria as an active-status shift register with 8-bit output capability, identical package footprint, matching supply voltage specifications, and equivalent operating temperature range. Both devices support serial-to-parallel data conversion with 20-DIP packaging, enabling direct functional replacement in legacy system designs.

Parameter Comparison

Engineering Selection Recommendations

The TPIC6A595NE represents the primary substitute for the obsolete A6A595KA based on the following engineering criteria:

Product Status: The TPIC6A595NE maintains active manufacturing status with established supply chain availability, whereas the A6A595KA is obsolete with limited inventory replenishment options.

Regulatory Compliance: The TPIC6A595NE achieves ROHS3 compliance, meeting current environmental and regulatory standards for new product designs and manufacturing operations. The A6A595KA's RoHS non-compliant status restricts its use in applications subject to modern regulatory requirements.

Package and Pinout Compatibility: Both devices utilize identical 20-DIP (0.300", 7.62mm) through-hole packaging, enabling direct socket replacement without PCB redesign.

Electrical Specifications: Matching supply voltage ranges (4.5V ~ 5.5V) and operating temperature specifications (-40°C ~ 125°C) ensure functional equivalence in standard industrial applications.

Output Configuration: The TPIC6A595NE's open-drain output topology provides equivalent low-side switching functionality for 8-bit parallel load applications, with identical pin configuration to the original A6A595KA design.

Frequently Asked Questions (FAQ)

Q: Can the TPIC6A595NE directly replace the A6A595KA without circuit modifications?

A: Yes. Both devices share identical 20-DIP package footprints, matching pin configurations, and equivalent electrical specifications for supply voltage and operating temperature ranges. Direct socket replacement is feasible for applications within the specified parameter ranges.

Q: What is the primary reason for substituting the A6A595KA?

A: The A6A595KA is classified as obsolete, limiting long-term availability and supply chain reliability. The TPIC6A595NE provides an active-status alternative with established manufacturing continuity and regulatory compliance.

Q: Are there differences in output drive capability between these devices?

A: The A6A595KA specifies 350mA maximum output current with 1Ω typical on-resistance. The TPIC6A595NE employs open-drain output architecture. Verify load current requirements and pull-up resistor sizing for your specific application to ensure compatibility.

Q: Does the TPIC6A595NE meet current regulatory requirements?

A: Yes. The TPIC6A595NE is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards. The A6A595KA's RoHS non-compliant status may restrict its use in regulated applications.

Q: Are both devices available in the same packaging options?

A: Both devices are manufactured exclusively in 20-DIP through-hole packaging. No alternative package options are available for either component.

Q: What supply voltage range do these devices support?

A: Both the A6A595KA and TPIC6A595NE operate across identical 4.5V to 5.5V supply voltage ranges, ensuring compatibility in standard 5V logic systems.