MP86883GQKT-Z Equivalent & Substitute Parts

Part Overview

The MP86883GQKT-Z is a half bridge driver IC from Monolithic Power Systems Inc., designed for general purpose power MOSFET applications. This device features a 55A output current capability, integrated bootstrap circuit, and comprehensive fault protection including current limiting and over-temperature detection. The part is packaged in a 34-TQFN (6x6) surface mount configuration and operates across a supply voltage range of 4.5V to 5.5V with load voltage support from 4.5V to 14V.

The MP86883GQKT-Z carries a product status of "Not For New Designs," indicating that Monolithic Power Systems Inc. has designated this part as obsolete or end-of-life for new applications. This status necessitates identification of functionally equivalent alternatives for ongoing production requirements and new design implementations.

Substiute Parts

MP86883GQKT-Z

Monolithic Power Systems Inc.In Stock: 1643MP86883GQKT-Z Datasheet

Current PartRFQ

MP86945-AGVT-Z

Monolithic Power Systems Inc.In Stock: 40831MP86945-AGVT-Z Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The MP86945-AGVT-Z qualifies as a manufacturer-recommended substitute for the MP86883GQKT-Z based on the following substitution criteria:

Common Functional Parameters:

• Manufacturer: Monolithic Power Systems Inc. (same manufacturer ensures design continuity and support)
• Category: Power Management (PMIC) with half-bridge driver topology
• Output Configuration: Half Bridge (identical functional architecture)
• Fault Protection: Current limiting and over-temperature protection (equivalent safety features)
• RoHS Status: ROHS3 Compliant (equivalent environmental compliance)
• MSL Rating: 2 (1 Year) (identical moisture sensitivity level)
• Mounting Type: Surface Mount (same assembly compatibility)

Substitution Basis: The MP86945-AGVT-Z represents an active product with enhanced specifications. The substitute maintains the core half-bridge driver functionality while offering increased output current capability (60A versus 55A) and a more compact package footprint (25-TQFN 4x5 versus 34-TQFN 6x6). Both devices operate within compatible voltage ranges and temperature specifications, enabling direct functional replacement in applications where the original part is no longer available.

Parameter Comparison

Engineering Selection Recommendations

The MP86945-AGVT-Z is designated as the manufacturer-recommended substitute for the MP86883GQKT-Z. Selection of the substitute part is based on the following engineering considerations:

Product Status: The original MP86883GQKT-Z carries a "Not For New Designs" status, indicating manufacturer discontinuation for new applications. The MP86945-AGVT-Z maintains "Active" product status with full manufacturer support and ongoing availability (40,787 units in stock versus 1,550 units for the original part).

Compliance & Certifications: Both parts maintain identical RoHS3 compliance and REACH unaffected status, ensuring equivalent environmental and regulatory compliance across supply chain requirements. MSL ratings are identical at Level 2 (1 Year), maintaining equivalent moisture handling and storage protocols.

Functional Equivalence: Both devices implement half-bridge driver architecture with current limiting and over-temperature fault protection. The substitute provides enhanced output current capability (60A versus 55A), representing a performance improvement rather than a limitation. The more compact package footprint (25-TQFN 4x5) of the substitute requires PCB layout redesign but offers reduced board space consumption.

Frequently Asked Questions (FAQ)

Q: Can the MP86945-AGVT-Z directly replace the MP86883GQKT-Z without circuit modifications?

A: Functional replacement is possible due to identical half-bridge driver topology and fault protection features. However, the substitute uses a different package (25-TQFN 4x5 versus 34-TQFN 6x6), requiring PCB layout redesign. Pin configuration and electrical interface must be verified against device datasheets before implementation.

Q: What are the key differences between these two parts?

A: The primary differences are output current rating (60A substitute versus 55A original), package size (25-TQFN versus 34-TQFN), and product status (Active versus Not For New Designs). Both maintain identical supply voltage ranges (4.5V ~ 5.5V), load voltage ranges (4.5V ~ 14V), and operating temperature specifications (-40°C ~ 125°C).

Q: Why is the original part marked "Not For New Designs"?

A: This designation indicates that Monolithic Power Systems Inc. has discontinued the MP86883GQKT-Z for new applications. Existing inventory remains available for legacy product support, but new designs should utilize the MP86945-AGVT-Z or other active alternatives.

Q: Are there any compliance or certification differences between the parts?

A: No. Both parts maintain identical RoHS3 compliance, REACH unaffected status, and MSL Level 2 (1 Year) ratings. Regulatory and environmental compliance requirements are equivalent across both devices.

Q: What considerations apply to package migration from 34-TQFN to 25-TQFN?

A: The substitute's smaller package footprint (4x5mm versus 6x6mm) reduces board area but requires complete PCB layout redesign. Pin pitch, thermal pad configuration, and trace routing must be re-evaluated. Thermal performance characteristics should be verified against application requirements, as the smaller package may affect heat dissipation properties.