A6A259KA Equivalent & Substitute Parts

Part Overview

The A6A259KA is a Power Management IC (PMIC) manufactured by Allegro MicroSystems, classified as a Power Switch/Driver with 3:8 N-Channel configuration in a 20-DIP package. This component functions as a latched driver with addressable latch mode, designed for low-side switching applications with a maximum load voltage of 50V and output current capability of 350mA per channel.

The A6A259KA is currently listed as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance of systems utilizing this component.

Substiute Parts

A6A259KA

Allegro MicroSystemsIn Stock: 739A6A259KA Datasheet

Current PartRFQ

TPIC6259N

Texas InstrumentsIn Stock: 1909TPIC6259N Datasheet

MFR RecommendedRFQ

TPIC6A259NE

Texas InstrumentsIn Stock: 1473TPIC6A259NE Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the A6A259KA are identified based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

• Package / Case: 20-DIP (0.300", 7.62mm) — ensures mechanical and pin compatibility
• Voltage - Supply (Vcc/Vdd): 4.5V ~ 5.5V — maintains power supply compatibility
• Operating Temperature: -40°C ~ 125°C — ensures thermal operating range alignment
• Circuit Configuration: 1:8 addressable latch functionality — preserves logic operation
• Output Type: N-Channel or DMOS — maintains switching characteristics
• Mounting Type: Through Hole — supports existing PCB designs

The substitute parts identified (TPIC6259N and TPIC6A259NE) are manufactured by Texas Instruments and classified as Logic ICs with D-Type, Addressable 1:8 circuit configuration. Both substitutes meet the mechanical, electrical, and thermal requirements specified for the A6A259KA and are currently in active product status with RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

TPIC6A259NE is the primary recommended substitute for the A6A259KA. This part maintains full mechanical compatibility (20-DIP package), identical supply voltage range (4.5V ~ 5.5V), and matching operating temperature range (-40°C ~ 125°C). The TPIC6A259NE features DMOS output technology with significantly faster propagation delay (30ns), active product status, and ROHS3 compliance, providing superior performance characteristics and long-term supply availability compared to the obsolete A6A259KA.

TPIC6259N serves as an alternative substitute with identical package, voltage, and temperature specifications. This part features standard output type and slower propagation delay (625ns). Selection between TPIC6A259NE and TPIC6259N depends on timing requirements within the application circuit.

Both Texas Instruments substitutes offer active product status and RoHS3 compliance, ensuring regulatory compliance and sustained manufacturing support.

Frequently Asked Questions (FAQ)

Q: Can TPIC6259N and TPIC6A259NE be used interchangeably with A6A259KA?

A: Both parts are mechanically and electrically compatible with the A6A259KA in terms of package (20-DIP), supply voltage (4.5V ~ 5.5V), operating temperature (-40°C ~ 125°C), and circuit configuration (1:8 addressable latch). The primary difference is propagation delay: TPIC6259N operates at 625ns while TPIC6A259NE operates at 30ns. Selection depends on timing-critical requirements in your application.

Q: Why is the A6A259KA listed as obsolete?

A: The A6A259KA is no longer manufactured by Allegro MicroSystems. Substitute parts from active manufacturers (Texas Instruments) are recommended to ensure continued supply chain availability and support for new designs or production runs.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both TPIC6259N and TPIC6A259NE are ROHS3 compliant. The original A6A259KA is RoHS non-compliant. If RoHS compliance is required for your application, the Texas Instruments substitutes satisfy this regulatory requirement.

Q: Will the substitute parts fit the existing PCB designed for A6A259KA?

A: Yes. Both TPIC6259N and TPIC6A259NE use the same 20-DIP (0.300", 7.62mm) package with through-hole mounting, ensuring direct pin-compatible replacement on existing PCBs without layout modifications.

Q: What is the difference between TPIC6259N and TPIC6A259NE?

A: Both parts share identical package, voltage, and temperature specifications. The key difference is output technology and speed: TPIC6259N uses standard output with 625ns propagation delay, while TPIC6A259NE uses DMOS output with 30ns propagation delay. TPIC6A259NE is recommended for timing-sensitive applications requiring faster switching response.