ATA6843-PLQW Equivalent & Substitute Parts

Part Overview

The ATA6843-PLQW is a motor driver power MOSFET integrated circuit designed for brushless DC (BLDC) motor control applications. It operates across a supply voltage range of 5.25V to 32V and features LIN interface communication with three half-bridge pre-driver outputs for commutation and direction management. The device is packaged in a 48-VQFN (7x7) configuration with exposed pad and is rated for automotive applications with an operating temperature range of -40°C to 150°C.

The ATA6843-PLQW is currently listed as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for systems utilizing this motor driver architecture.

Substiute Parts

ATA6843-PLQW

Microchip TechnologyIn Stock: 3584ATA6843-PLQW Datasheet

Current PartRFQ

ATA6843-PLQW-1

Microchip TechnologyIn Stock: 20392ATA6843-PLQW-1 Datasheet

DirectRFQ

ATA6844-PLQW-1

Microchip TechnologyIn Stock: 4213ATA6844-PLQW-1 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ATA6843-PLQW are determined by strict equivalence across the following critical parameters:

Electrical Compatibility:

• Supply voltage range: 5.25V ~ 32V
• Motor control function: Brushless DC (BLDC) commutation and direction management
• Output configuration: Three half-bridge pre-driver outputs
• Interface protocol: LIN

Mechanical & Package Compatibility:

• Mounting type: Surface Mount
• Package type: 48-VFQFN with exposed pad (7x7 footprint)
• Pin count and pinout: 48 pins

Regulatory & Environmental:

• Automotive grade qualification
• Operating temperature range: -40°C ~ 150°C
• RoHS3 compliance
• REACH unaffected status

The identified substitutes maintain full electrical and mechanical compatibility with the original ATA6843-PLQW design, enabling direct replacement in existing PCB layouts and system architectures.

Parameter Comparison

Engineering Selection Recommendations

ATA6843-PLQW-1 is the direct manufacturer successor to the ATA6843-PLQW. Both parts share identical electrical specifications, package geometry, and pinout. The primary distinction is product status: ATA6843-PLQW-1 is active and carries AEC-Q100 qualification, whereas the original ATA6843-PLQW is obsolete. This part is the preferred choice for new designs and ongoing production requiring the ATA6843 base product architecture.

ATA6844-PLQW-1 is a parametric equivalent based on matching electrical function, supply voltage range, output configuration, interface protocol, and package specifications. It differs in base product number (ATA6844 versus ATA6843) but maintains full compatibility across all critical motor driver parameters. This part is active and AEC-Q100 qualified. Selection of ATA6844-PLQW-1 is appropriate when ATA6843-PLQW-1 availability is constrained and the ATA6844 variant meets system requirements.

Both substitute parts are automotive-grade, ROHS3 compliant, and REACH unaffected, meeting the regulatory requirements of the original design.

Frequently Asked Questions (FAQ)

Q: Can ATA6843-PLQW-1 be used as a direct replacement for ATA6843-PLQW?

A: Yes. ATA6843-PLQW-1 is the active production equivalent of the obsolete ATA6843-PLQW. Both parts have identical electrical specifications, pinout, and 48-VFQFN package geometry. No design modifications are required for substitution.

Q: What is the difference between ATA6843-PLQW-1 and ATA6844-PLQW-1?

A: Both parts are functionally equivalent for BLDC motor control applications, sharing identical supply voltage range (5.25V ~ 32V), three half-bridge pre-driver outputs, LIN interface, and 48-VFQFN package. The primary difference is the base product number designation (ATA6843 versus ATA6844). Both are active, AEC-Q100 qualified, and suitable for automotive applications.

Q: Are the substitute parts pin-compatible with the original ATA6843-PLQW?

A: Yes. Both ATA6843-PLQW-1 and ATA6844-PLQW-1 use the 48-VFQFN (7x7) package with exposed pad and maintain full pinout compatibility with the original ATA6843-PLQW, enabling direct PCB replacement without layout modifications.

Q: Do the substitute parts meet automotive qualification requirements?

A: Yes. Both ATA6843-PLQW-1 and ATA6844-PLQW-1 are automotive-grade components with AEC-Q100 qualification, ROHS3 compliance, and REACH unaffected status, meeting the regulatory requirements of the original design.

Q: What is the operating temperature range for the substitute parts?

A: Both substitute parts operate across -40°C to 150°C (TA), matching the original ATA6843-PLQW specification and supporting the full automotive temperature envelope.