TC4425AVPA Equivalent & Substitute Parts

Part Overview

The TC4425AVPA is a low-side gate driver IC manufactured by Microchip Technology, designed to drive N-Channel and P-Channel MOSFETs in independent configurations. This 8-PDIP package device operates across a 4.5V to 18V supply range and delivers 4.5A peak output current for both source and sink operations. The part is currently in active production status with 4,237 units in stock.

Finding equivalent and substitute parts becomes necessary when the TC4425AVPA reaches end-of-life, when supply constraints occur, or when design requirements necessitate alternative performance characteristics such as different operating temperature ranges or output current specifications.

Substiute Parts

TC4425AVPA

Microchip TechnologyIn Stock: 4330TC4425AVPA Datasheet

Current PartRFQ

MAX628CPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1112MAX628CPA+ Datasheet

MFR RecommendedRFQ

UCC37325P

Texas InstrumentsIn Stock: 1509UCC37325P Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TC4425AVPA is determined by the following critical parameters:

• Driven Configuration: Must be Low-Side
• Number of Drivers: Must be 2
• Gate Type: Must support N-Channel and P-Channel MOSFET
• Package / Case: Must be 8-DIP (0.300", 7.62mm)
• Input Type: Must support Inverting and Non-Inverting configurations
• Voltage - Supply: Must encompass or match the 4.5V ~ 18V range
• Current - Peak Output: Must meet or exceed 4.5A for both source and sink
• RoHS Status: Must maintain ROHS3 compliance

The identified substitute parts meet these core substitution criteria. Variations in operating temperature range, rise/fall time characteristics, and logic voltage thresholds represent secondary performance differences that do not prevent functional substitution within the specified electrical and mechanical constraints.

Parameter Comparison

Engineering Selection Recommendations

MAX628CPA+ (Analog Devices Inc./Maxim Integrated)

This substitute maintains full compatibility with the TC4425AVPA in terms of supply voltage range, input configuration, and package form factor. The device is in active production status. The primary design consideration is the reduced peak output current specification of 2A compared to the TC4425AVPA's 4.5A. This part is suitable for applications where output current requirements do not exceed 2A. The operating temperature range is restricted to 0°C ~ 70°C, which may limit use in extended temperature environments.

UCC37325P (Texas Instruments)

This substitute provides peak output current of 4A, approaching the TC4425AVPA specification of 4.5A. The device supports the full operating temperature range of -55°C ~ 150°C, exceeding the TC4425AVPA's lower temperature limit. The maximum supply voltage is limited to 15V, which is below the TC4425AVPA's 18V specification. This part carries a Last Time Buy status, indicating it is no longer in active production. The UCC37325P is suitable for applications operating within the 4.5V ~ 15V supply range and where extended temperature operation is required.

Both substitute parts maintain ROHS3 compliance and REACH unaffected status, consistent with the TC4425AVPA regulatory profile.

Frequently Asked Questions (FAQ)

Q: Can MAX628CPA+ be used as a direct replacement for TC4425AVPA?

A: MAX628CPA+ is mechanically and functionally compatible in terms of package, pin configuration, and input/output signal types. However, the reduced peak output current of 2A versus 4.5A restricts its use to applications with lower current demands. Verify that your MOSFET gate drive current requirements do not exceed 2A.

Q: What is the primary limitation of UCC37325P as a substitute?

A: The maximum supply voltage of UCC37325P is 15V, compared to TC4425AVPA's 18V maximum. Applications requiring supply voltages above 15V cannot use this substitute. Additionally, UCC37325P is in Last Time Buy status, meaning future availability is limited.

Q: Are all three parts pin-compatible?

A: Yes. TC4425AVPA, MAX628CPA+, and UCC37325P all use the 8-DIP (0.300", 7.62mm) package with identical pin assignments for low-side gate driver functionality.

Q: Which substitute is best for high-temperature applications?

A: UCC37325P supports operating temperatures from -55°C to 150°C (TJ), matching the TC4425AVPA's lower temperature limit and exceeding its upper limit. MAX628CPA+ is limited to 0°C ~ 70°C and is not suitable for extended temperature ranges.

Q: Do all parts meet the same regulatory compliance standards?

A: Yes. TC4425AVPA, MAX628CPA+, and UCC37325P are all ROHS3 compliant and REACH unaffected, maintaining consistent regulatory status across substitution options.

Q: What output current specification should I use for design verification?

A: Use the lowest output current specification among your candidate parts. If selecting MAX628CPA+, design for 2A maximum. If selecting UCC37325P, design for 4A maximum. This ensures compatibility across all potential substitutions.