TC4426AVPA Equivalent & Substitute Parts

Part Overview

The TC4426AVPA 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 inverting gate driver operates across a 4.5V to 18V supply range and delivers 1.5A peak output current on both source and sink channels. The device is housed in an 8-DIP through-hole package and maintains active product status with full RoHS3 compliance.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for low-side gate driver applications.

Substiute Parts

TC4426AVPA

Microchip TechnologyIn Stock: 7875TC4426AVPA Datasheet

Current PartRFQ

MIC4423YN

Microchip TechnologyIn Stock: 1508MIC4423YN Datasheet

MFR RecommendedRFQ

MIC4423ZN

Microchip TechnologyIn Stock: 4496MIC4423ZN Datasheet

MFR RecommendedRFQ

IR4426PBF

International RectifierIn Stock: 28754IR4426PBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TC4426AVPA is determined by the following critical parameters:

• Driven Configuration: Must be Low-Side
• Number of Drivers: Must be 2 independent channels
• Input Type: Must be Inverting
• Package / Case: Must be 8-DIP (0.300", 7.62mm)
• Mounting Type: Must be Through Hole
• Gate Type Compatibility: Must support N-Channel MOSFET operation at minimum
• Voltage - Supply Range: Must encompass or overlap the 4.5V ~ 18V requirement
• Current - Peak Output: Must meet or exceed 1.5A on both source and sink channels
• Product Status: Must be Active
• Compliance: Must maintain RoHS3 compliance

All three substitute parts meet these core substitution criteria while maintaining functional equivalence in low-side gate driver applications.

Parameter Comparison

Engineering Selection Recommendations

MIC4423YN and MIC4423ZN are direct Microchip Technology substitutes with identical supply voltage ranges and logic thresholds. Both devices deliver higher peak output current (3A vs 1.5A) and extended operating temperature ranges. MIC4423YN supports -40°C to 150°C operation, while MIC4423ZN operates from 0°C to 150°C. Both maintain ROHS3 compliance and active product status. Selection between these two depends on minimum operating temperature requirements of the application.

IR4426PBF is a substitute from International Rectifier with expanded supply voltage range (6V ~ 20V) and asymmetric output current capability (2.3A source, 3.3A sink). This device features faster switching characteristics (15ns rise, 10ns fall) and supports IGBT gate driving in addition to N-Channel MOSFET operation. The IR4426PBF operates across -40°C to 150°C and is suitable for applications requiring higher switching speed or IGBT compatibility. RoHS compliance status is not specified for this device.

All substitute parts maintain the 8-DIP through-hole package format and two-channel independent inverting configuration required for direct board-level replacement.

Frequently Asked Questions (FAQ)

Q: Can MIC4423YN and MIC4423ZN be used interchangeably with TC4426AVPA?

A: Yes, both MIC4423 variants are functionally equivalent substitutes. The primary difference is operating temperature range: MIC4423YN operates from -40°C to 150°C, while MIC4423ZN operates from 0°C to 150°C. Select based on your application's minimum temperature requirement.

Q: What are the key differences between the Microchip and International Rectifier substitutes?

A: The IR4426PBF offers faster switching times (15ns/10ns vs 25-32ns), higher supply voltage ceiling (20V vs 18V), and asymmetric output current (2.3A/3.3A vs symmetric ratings). The IR4426PBF also supports IGBT gate driving. These characteristics make it suitable for higher-speed switching applications or IGBT-based topologies.

Q: Are all substitute parts pin-compatible with TC4426AVPA?

A: All substitute parts use the 8-DIP (0.300", 7.62mm) through-hole package. Pin compatibility must be verified against specific pinout documentation, as package format alone does not guarantee identical pin assignments.

Q: Do all substitutes maintain RoHS3 compliance?

A: MIC4423YN and MIC4423ZN are confirmed ROHS3 compliant. RoHS compliance status for IR4426PBF is not specified in the provided data and must be verified with the manufacturer.

Q: Which substitute offers the best current-handling capability?

A: MIC4423YN and MIC4423ZN both deliver 3A peak output current on source and sink channels, exceeding the TC4426AVPA's 1.5A rating. IR4426PBF provides 2.3A source and 3.3A sink current.

Q: Can IR4426PBF replace TC4426AVPA in all applications?

A: IR4426PBF is functionally compatible for low-side MOSFET gate driving applications within the overlapping supply voltage range (6V ~ 18V). The faster switching characteristics and IGBT capability provide additional functionality but do not prevent use in standard MOSFET applications. Verify RoHS compliance requirements with your supply chain before selection.