A6B595KA-T Equivalent & Substitute Parts

Part Overview

The A6B595KA-T is a Power Management IC (PMIC) manufactured by Allegro MicroSystems, classified as a Power Switch/Driver with 1:8 N-Channel configuration in an 18-DIP package. This component functions as a latched driver with 8 low-side N-channel outputs, designed for applications requiring serial-to-parallel power switching control. The part is currently listed as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

A6B595KA-T

Allegro MicroSystemsIn Stock: 871A6B595KA-T Datasheet

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TPIC6B595N

Texas InstrumentsIn Stock: 26716TPIC6B595N Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The TPIC6B595N from Texas Instruments serves as a functional substitute for the A6B595KA-T based on the following critical parameters:

Core Functional Equivalence:

• Both devices provide 8-bit output control with serial-to-parallel conversion capability
• Both support low-side N-channel switching architecture
• Both operate within the same supply voltage range (4.5V ~ 5.5V)
• Both are designed for latched/shift register operation with strobe control

Substitution Criteria:

• Number of Outputs: 8 (identical)
• Output Type: N-Channel, Low Side (identical)
• Supply Voltage: 4.5V ~ 5.5V (identical)
• Load Voltage Rating: TPIC6B595N supports equivalent or higher voltage switching
• RoHS Compliance: Both ROHS3 Compliant
• REACH Status: Both REACH Unaffected

Package Consideration: The TPIC6B595N is packaged in 20-DIP format versus the original 18-DIP. This represents a pin-count increase but maintains through-hole mounting compatibility with standard PCB footprints designed for DIP packages.

Parameter Comparison

Engineering Selection Recommendations

For Obsolescence Mitigation: The A6B595KA-T is obsolete with limited remaining inventory (784 pieces). The TPIC6B595N is actively manufactured by Texas Instruments with substantial inventory availability (26700 pieces), ensuring long-term supply chain continuity.

Compliance Alignment: Both components maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for industrial and commercial applications. The TPIC6B595N's extended operating temperature range (-40°C ~ 125°C versus -40°C ~ 85°C) provides additional thermal margin for demanding environments.

Functional Compatibility: The shift from 18-DIP to 20-DIP packaging requires PCB footprint modification. The additional pins in the TPIC6B595N accommodate enhanced functionality while maintaining the core 8-bit output switching capability. Schematic integration remains straightforward given identical supply voltage requirements and compatible serial-to-parallel control logic.

Frequently Asked Questions (FAQ)

Q: Can the TPIC6B595N directly replace the A6B595KA-T without PCB modification?

A: No. The TPIC6B595N uses a 20-DIP package versus the original 18-DIP package. PCB footprint redesign is required. However, both maintain 0.300" (7.62mm) row spacing, allowing adaptation within standard DIP socket layouts.

Q: Are the output current ratings compatible?

A: Both devices are specified for 150mA maximum output current, ensuring equivalent current-switching capability for load applications.

Q: What is the difference between "Low Side N-Channel" and "Open Drain" output configuration?

A: Both configurations provide functionally equivalent switching behavior for this application class. Open Drain (TPIC6B595N) and Low Side N-Channel (A6B595KA-T) both pull the output to ground when activated, suitable for driving external loads with pull-up resistors or active high-side switching.

Q: Does the extended temperature range of the TPIC6B595N affect compatibility?

A: The TPIC6B595N's -40°C ~ 125°C operating range exceeds the original -40°C ~ 85°C specification. This provides enhanced thermal performance and is fully backward-compatible with applications designed for the narrower temperature window.

Q: What supply voltage considerations apply to substitution?

A: Both components operate identically within the 4.5V ~ 5.5V supply range. No voltage regulation modifications are required.

Q: Is the TPIC6B595N available in alternative packages?

A: The provided data specifies the TPIC6B595N in 20-PDIP (Plastic DIP) packaging. Consult the Texas Instruments product selector for alternative package options if required.