TC4425VMF Equivalent & Substitute Parts

Part Overview

The TC4425VMF is a low-side gate driver IC manufactured by Microchip Technology, designed for driving N-Channel and P-Channel MOSFETs in power management applications. This dual-channel independent gate driver operates across a 4.5V to 18V supply range and is housed in an 8-VDFN surface mount package with exposed pad. The device is currently in active production status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent functional performance can be achieved within the allowed electrical and mechanical parameter specifications for this product category.

Substiute Parts

TC4425VMF

Microchip TechnologyIn Stock: 1199TC4425VMF Datasheet

Current PartRFQ

TC4425AVMF

Microchip TechnologyIn Stock: 2023TC4425AVMF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TC4425VMF is determined by strict equivalence across the following critical parameters:

• Driven Configuration: Must be Low-Side
• Number of Drivers: Must be 2 independent channels
• Gate Type: Must support N-Channel and P-Channel MOSFET driving
• Supply Voltage Range: Must encompass 4.5V ~ 18V
• Logic Voltage Thresholds: Must match VIL 0.8V and VIH 2.4V
• Input Type: Must provide both Inverting and Non-Inverting configurations
• Operating Temperature Range: Must cover -40°C ~ 150°C (TJ)
• Package: Must be 8-VDFN Exposed Pad surface mount
• Compliance: Must maintain ROHS3 compliance and MSL 1 rating

The TC4425AVMF qualifies as a direct substitute based on full alignment with these mandatory parameters. Performance enhancements in peak output current and switching speed do not disqualify substitution; they represent improved electrical characteristics within the same functional category.

Parameter Comparison

Engineering Selection Recommendations

Both TC4425VMF and TC4425AVMF are active production devices from Microchip Technology with identical compliance certifications. Selection between these parts should be based on application-specific current requirements and switching speed performance needs.

The TC4425VMF provides 3A peak output current with 23ns/25ns rise/fall times and is suitable for applications with moderate gate drive current demands. The TC4425AVMF delivers enhanced performance with 4.5A peak output current and 12ns switching times, making it appropriate for high-frequency switching applications or designs requiring faster gate transitions.

Both devices maintain full ROHS3 compliance, unlimited moisture sensitivity rating (MSL 1), and identical supply voltage and logic threshold specifications. PCB layout and thermal management considerations remain consistent between the two variants due to identical package geometry (8-DFN-S 6x5).

Frequently Asked Questions (FAQ)

Q: Can TC4425AVMF replace TC4425VMF in existing designs?

A: Yes. The TC4425AVMF is a direct substitute with identical supply voltage range (4.5V ~ 18V), logic thresholds (0.8V/2.4V), operating temperature range (-40°C ~ 150°C), and 8-VDFN package specifications. The enhanced current rating (4.5A vs 3A) and faster switching times (12ns vs 23ns/25ns) represent performance improvements that do not create compatibility issues in applications designed for the TC4425VMF.

Q: Are there any PCB layout differences between TC4425VMF and TC4425AVMF?

A: No. Both devices use identical 8-DFN-S (6x5) package geometry with exposed pad. PCB footprints, trace routing, and thermal via placement remain unchanged between the two variants.

Q: What determines substitution eligibility for low-side gate driver ICs?

A: Substitution requires matching driven configuration (low-side), number of independent channels (2), gate type support (N-Channel and P-Channel MOSFET), supply voltage range (4.5V ~ 18V minimum), logic voltage thresholds (0.8V/2.4V), input types (inverting and non-inverting), operating temperature range (-40°C ~ 150°C), and package specification (8-VDFN exposed pad). Compliance certifications (ROHS3, MSL 1) must also align.

Q: Does the improved current rating of TC4425AVMF affect thermal performance?

A: Thermal performance depends on application-specific switching frequency, duty cycle, and load conditions. The identical package geometry ensures equivalent thermal characteristics under comparable operating conditions. Detailed thermal analysis requires application-specific parameters not provided in this reference.

Q: Are both parts available in the same packaging options?

A: Both TC4425VMF and TC4425AVMF are supplied in Tube packaging as surface mount components in 8-VDFN configuration with exposed pad.