FDMF6707V Equivalent & Substitute Parts

Part Overview

The FDMF6707V is a half bridge driver IC designed for synchronous buck converter applications, manufactured by onsemi in the XS™ DrMOS series. This component integrates gate driver functionality with integrated MOSFETs in a 40-PQFN (6x6) surface mount package, delivering 45A output current per channel. The product is classified as obsolete, making identification of functionally compatible alternatives essential for ongoing design support and production continuity.

Substiute Parts

FDMF6707V

onsemiIn Stock: 18157FDMF6707V Datasheet

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FDMF6824C

onsemiIn Stock: 1337FDMF6824C Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The FDMF6824C qualifies as a functional substitute for the FDMF6707V based on the following substitution criteria:

Matching Parameters:

• Identical package type: 40-PowerTFQFN (6x6)
• Identical output configuration: Half Bridge
• Identical technology platform: DrMOS
• Identical interface: PWM
• Identical load type: Inductive
• Identical fault protection features: Over Temperature, Shoot-Through, UVLO
• Identical auxiliary features: Bootstrap Circuit, Status Flag
• Identical operating temperature range: -40°C ~ 150°C (TJ)
• Identical on-resistance specifications: 1Ohm LS, 1Ohm HS
• Identical mounting type: Surface Mount

Allowable Parameter Variations:

• Output current: FDMF6824C provides 50A versus FDMF6707V's 45A (higher capacity is acceptable for drop-in replacement)
• Supply voltage range: FDMF6824C operates 4.5V ~ 5.5V versus FDMF6707V's 8V ~ 15V (narrower range requires design verification)
• Load voltage range: FDMF6824C supports 3V ~ 16V versus FDMF6707V's 3V ~ 15V (extended upper limit is compatible)

Parameter Comparison

Engineering Selection Recommendations

FDMF6824C as Primary Substitute:

The FDMF6824C is suitable as a direct substitute for the FDMF6707V in applications where the supply voltage requirement aligns with the 4.5V ~ 5.5V operating range. The higher output current rating (50A versus 45A) provides design margin and is compatible with existing PCB layouts due to identical packaging. Both components share identical fault protection architecture, thermal specifications, and auxiliary features.

Critical Design Consideration:

The supply voltage range difference between the two parts requires explicit verification. The FDMF6707V operates across 8V ~ 15V, while the FDMF6824C is specified for 4.5V ~ 5.5V. Applications designed for the original part's higher voltage range cannot use the FDMF6824C without circuit redesign. Conversely, applications operating within the 4.5V ~ 5.5V window can adopt the FDMF6824C without modification.

Compliance Status:

Both parts are classified as obsolete. The FDMF6824C carries ROHS3 compliance certification, whereas the FDMF6707V status is not specified. For new designs or production requiring regulatory compliance, the FDMF6824C's documented ROHS3 status provides additional assurance.

Frequently Asked Questions (FAQ)

Q: Can FDMF6824C replace FDMF6707V in any application?

A: Substitution is valid only when the application's supply voltage requirement falls within 4.5V ~ 5.5V. The FDMF6707V's 8V ~ 15V supply range is broader. If your design operates at 8V or higher, the FDMF6824C cannot be used without circuit modification.

Q: Why does FDMF6824C have a higher current rating (50A vs 45A)?

A: The FDMF6824C is a later-generation variant within the DrMOS family, offering improved performance specifications. The higher current capacity is a design enhancement and does not prevent substitution; it provides additional thermal and electrical margin.

Q: Are the packages physically identical?

A: Yes. Both parts use the 40-PowerTFQFN (6x6) package with identical footprints and pinouts. PCB layout modifications are not required for mechanical compatibility.

Q: What is the difference in load voltage range?

A: The FDMF6707V supports 3V ~ 15V load voltage, while FDMF6824C extends to 3V ~ 16V. This difference is not a substitution barrier; the extended upper limit of the FDMF6824C is compatible with designs using the original part.

Q: Are fault protection features identical?

A: Yes. Both parts implement identical over-temperature, shoot-through, and UVLO (under-voltage lockout) protection mechanisms. Bootstrap circuit and status flag features are also identical.

Q: What is the significance of the MSL rating?

A: Both parts carry MSL 1 (Unlimited) classification, indicating they have unlimited shelf life and require no special moisture control during storage or handling. This specification is identical between the two parts.

Q: Why are both parts classified as obsolete?

A: Both the FDMF6707V and FDMF6824C are end-of-life products from onsemi. For new designs requiring long-term availability, consultation with onsemi for current-generation half bridge driver alternatives is recommended.