MP86883GQKT-P Equivalent & Substitute Parts

Part Overview

The MP86883GQKT-P is a half-bridge driver IC from Monolithic Power Systems Inc., designed for general-purpose power MOSFET applications. This device integrates a 55A output driver with bootstrap circuit and status flag capabilities in a 34-TQFN (6x6) package. The part is classified as "Not For New Designs," indicating it has reached end-of-life status. Finding equivalent or substitute parts is necessary for ongoing production support, maintenance applications, and legacy system repairs where this driver remains in use.

Substiute Parts

MP86883GQKT-P

Monolithic Power Systems Inc.In Stock: 791MP86883GQKT-P 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 based on the following substitution criteria:

Functional Equivalence: Both devices are half-bridge driver ICs from Monolithic Power Systems Inc., designed for power MOSFET gate driving applications with integrated protection features.

Output Configuration Match: Both parts maintain half-bridge topology, ensuring compatibility with existing circuit designs that require complementary high-side and low-side gate drive outputs.

Supply Voltage Compatibility: The MP86945-AGVT-Z operates within the same supply voltage range (4.5V ~ 5.5V), allowing direct integration into existing power supply architectures.

Load Voltage Range: Both devices support the same load voltage specification (4.5V ~ 14V), maintaining compatibility with target power conversion applications.

Protection Features: Both parts include current limiting and over-temperature fault protection, ensuring equivalent system-level reliability and safety margins.

Compliance Alignment: Both devices maintain ROHS3 compliance and identical moisture sensitivity levels (MSL 2, 1 Year), supporting equivalent manufacturing and storage requirements.

Key Differentiator: The MP86945-AGVT-Z features a higher peak output current specification (60A versus 55A) and uses a smaller 25-TQFN (4x5) package, offering improved thermal performance and reduced board space requirements while maintaining backward compatibility with the MP86883GQKT-P functional requirements.

Parameter Comparison

Engineering Selection Recommendations

For Legacy System Support: The MP86883GQKT-P remains the primary choice for existing designs where this part number is already qualified and in production. Current inventory of 736 pieces supports ongoing manufacturing requirements.

For New Designs and Redesigns: The MP86945-AGVT-Z is the recommended selection. This part carries Active product status, ensuring long-term availability and manufacturing support. The higher 60A output current provides additional design margin, and the smaller 25-TQFN package reduces thermal resistance and board footprint.

Compliance Assurance: Both parts maintain identical ROHS3 compliance and REACH unaffected status, eliminating regulatory barriers to substitution. Moisture sensitivity levels are equivalent, supporting identical handling and storage protocols.

Supply Chain Continuity: The MP86945-AGVT-Z demonstrates significantly higher inventory availability (40,787 pieces), providing superior supply chain security compared to the legacy MP86883GQKT-P.

Frequently Asked Questions (FAQ)

Q: Can the MP86945-AGVT-Z directly replace the MP86883GQKT-P in existing designs?

A: Yes, for applications where the circuit topology and electrical specifications align. Both devices are half-bridge drivers with identical supply voltage (4.5V ~ 5.5V) and load voltage (4.5V ~ 14V) ranges. The MP86945-AGVT-Z's higher 60A output current is backward compatible with designs rated for 55A. Package differences (34-TQFN versus 25-TQFN) require PCB layout modification but do not affect electrical compatibility.

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

A: The MP86883GQKT-P uses a 34-TQFN (6x6mm) package, while the MP86945-AGVT-Z uses a 25-TQFN (4x5mm) package. The smaller package of the MP86945-AGVT-Z reduces board area and improves thermal performance. PCB footprint redesign is required for substitution.

Q: Are there any thermal performance differences?

A: The MP86945-AGVT-Z's smaller 25-TQFN package typically provides lower thermal resistance compared to the larger 34-TQFN package of the MP86883GQKT-P. This results in improved heat dissipation at equivalent power levels, supporting higher ambient temperature operation or higher current applications.

Q: Why is the MP86883GQKT-P marked "Not For New Designs"?

A: This designation indicates the part has reached end-of-life status within Monolithic Power Systems Inc.'s product portfolio. New designs should utilize the MP86945-AGVT-Z, which carries Active status and ensures long-term manufacturing support and availability.

Q: Do both parts require identical gate drive signal conditioning?

A: Yes. Both devices maintain identical logic interface specifications and fault protection mechanisms (current limiting and over-temperature protection). Existing gate drive signal conditioning circuits require no modification for substitution.

Q: What is the inventory status for each part?

A: The MP86883GQKT-P has 736 pieces in stock, supporting limited production runs. The MP86945-AGVT-Z has 40,787 pieces available, providing substantially higher supply security for ongoing or expanded production requirements.