MP86885GQWT-Z Equivalent & Substitute Parts

Part Overview

The MP86885GQWT-Z is a half bridge driver IC manufactured by Monolithic Power Systems Inc., designed for general purpose power MOSFET applications. This device integrates a bootstrap circuit and status flag functionality, with current limiting and over-temperature fault protection. The part is classified as not for new designs, indicating it has been superseded in the product roadmap. Identifying equivalent substitute parts is essential for design continuity, inventory management, and long-term supply chain planning.

Substiute Parts

MP86885GQWT-Z

Monolithic Power Systems Inc.In Stock: 20263MP86885GQWT-Z Datasheet

Current PartRFQ

MP86905GR-Z

Monolithic Power Systems Inc.In Stock: 272045MP86905GR-Z Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MP86885GQWT-Z is determined by the following critical parameters:

• Output Configuration: Half bridge topology must be maintained
• Current Rating: Output/channel current capability of 40A
• Supply Voltage Range: 4.5V ~ 5.5V operation
• Load Voltage Range: 4.5V ~ 14V compatibility
• Operating Temperature Range: -40°C ~ 125°C (TJ)
• Protection Features: Current limiting and over-temperature fault protection
• Regulatory Compliance: ROHS3 compliance and REACH unaffected status

The MP86905GR-Z is identified as a manufacturer-recommended substitute. While it employs a different package form factor (23-QFN versus 29-PowerWFQFN), it maintains the core functional requirements for half bridge driver applications within the specified electrical operating parameters.

Parameter Comparison

Engineering Selection Recommendations

The MP86905GR-Z is the manufacturer-recommended substitute for the MP86885GQWT-Z. Selection of this alternative is supported by the following factors:

• Product Status Alignment: The MP86905GR-Z carries active product status, ensuring continued manufacturer support and availability, whereas the MP86885GQWT-Z is designated not for new designs.
• Regulatory Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying environmental and regulatory requirements.
• Certification Parity: Both devices share identical moisture sensitivity levels (MSL 1) and ECCN/HTSUS classifications, ensuring equivalent supply chain handling and documentation requirements.
• Functional Equivalence: Both parts provide half bridge driver functionality with the same core protection mechanisms (current limiting and over-temperature fault protection).

The primary design consideration is the package form factor transition from 29-PowerWFQFN to 23-PowerVFQFN, which requires PCB layout modification but does not affect electrical performance within the specified operating parameters.

Frequently Asked Questions (FAQ)

Q: Can the MP86905GR-Z directly replace the MP86885GQWT-Z without circuit modification?

A: The MP86905GR-Z is functionally equivalent for half bridge driver applications. However, the package change from 29-PowerWFQFN (4x6) to 23-PowerVFQFN (4x4) requires PCB layout redesign. Pin-to-pin compatibility must be verified against the respective datasheets before implementation.

Q: Why is the MP86885GQWT-Z marked as not for new designs?

A: This designation indicates the part has been superseded in the manufacturer's product roadmap. The MP86905GR-Z represents the active alternative for new design implementations.

Q: Are there any differences in electrical performance between these parts?

A: The provided parameters confirm both parts operate within identical supply voltage (4.5V ~ 5.5V), load voltage (4.5V ~ 14V), and temperature ranges (-40°C ~ 125°C). Both provide 40A output current capability and equivalent fault protection features.

Q: What is the impact of the smaller package size on thermal management?

A: The 23-PowerVFQFN package is physically smaller than the 29-PowerWFQFN. Thermal performance must be evaluated through detailed datasheet analysis and thermal modeling specific to your application's power dissipation requirements.

Q: Are both parts available in equivalent quantities?

A: Inventory levels differ. The MP86885GQWT-Z has 20,182 pcs available, while the MP86905GR-Z has 271,950 pcs in stock, providing greater supply availability for the substitute part.

Q: Do both parts require identical PCB assembly processes?

A: Both are surface mount devices with MSL 1 rating. Assembly processes are compatible, though the different package footprints require separate PCB designs and assembly tooling.