ATA6838C-PXQW Equivalent & Substitute Parts

Part Overview

The ATA6838C-PXQW is a brushed DC motor driver IC manufactured by Microchip Technology, designed for general-purpose motor control applications. It integrates a fully functional driver with control and power stages in a 24-QFN surface mount package. The device operates with a supply voltage range of 4.75V to 5.25V and supports load voltages from 5.5V to 40V, delivering up to 950mA output current.

The ATA6838C-PXQW is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production requirements for applications utilizing this motor driver architecture.

Substiute Parts

ATA6838C-PXQW

Microchip TechnologyIn Stock: 2564ATA6838C-PXQW Datasheet

Current PartRFQ

ATA6838C-PXQW-1

Microchip TechnologyIn Stock: 17126ATA6838C-PXQW-1 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ATA6838C-PXQW is determined by strict equivalence across the following critical parameters:

• Motor driver function with fully integrated control and power stages
• Brushed DC motor type support
• Half Bridge (6) output configuration
• SPI interface protocol
• Power MOSFET technology
• 950mA output current capability
• 4.75V to 5.25V supply voltage range
• 5.5V to 40V load voltage range
• -40°C to 150°C operating temperature range
• 24-VQFN Exposed Pad package with Surface Mount mounting
• ROHS3 compliance

The substitute part ATA6838C-PXQW-1 meets all these criteria and is therefore classified as a parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

The ATA6838C-PXQW-1 is the direct parametric equivalent for the obsolete ATA6838C-PXQW. Both parts are manufactured by Microchip Technology and maintain identical electrical and mechanical specifications across all critical motor driver parameters.

The primary distinction between the two parts is product status: the ATA6838C-PXQW is obsolete, while the ATA6838C-PXQW-1 is active and currently in production. This status difference ensures ongoing availability and supply chain continuity for new designs and production runs.

Both parts carry ROHS3 compliance and REACH Unaffected status, meeting regulatory requirements for industrial and commercial applications. The moisture sensitivity level differs slightly (MSL 2 versus MSL 3), reflecting standard manufacturing variations between production batches. This difference does not affect functional equivalence or application suitability.

Frequently Asked Questions (FAQ)

Q: Can the ATA6838C-PXQW-1 be used as a direct replacement for the ATA6838C-PXQW?

A: Yes. The ATA6838C-PXQW-1 is a parametric equivalent with identical electrical specifications, output configuration, interface protocol, and package format. No circuit modifications are required for substitution.

Q: What is the difference between the two part numbers?

A: The primary difference is product status. The ATA6838C-PXQW is obsolete, while the ATA6838C-PXQW-1 is active. Both parts are electrically and mechanically equivalent. The moisture sensitivity level differs slightly due to manufacturing batch variations.

Q: Are there any compatibility concerns with the 24-VQFN package?

A: No. Both parts use the identical 24-VQFN Exposed Pad surface mount package. PCB layouts, footprints, and assembly processes remain unchanged.

Q: Do both parts support the same supply and load voltage ranges?

A: Yes. Both the ATA6838C-PXQW and ATA6838C-PXQW-1 operate with a 4.75V to 5.25V supply voltage range and support load voltages from 5.5V to 40V.

Q: Is the SPI interface identical between the two parts?

A: Yes. Both parts implement the same SPI interface protocol for control and communication.

Q: What is the significance of the different MSL ratings?

A: The moisture sensitivity level (MSL 2 versus MSL 3) reflects standard manufacturing variations and does not affect functional performance or application compatibility. Storage and handling requirements may differ slightly; refer to component datasheets for specific moisture control procedures.