TC4424VPA Low-Side Gate Driver IC Equivalent & Substitute Parts

Part Overview

The TC4424VPA 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 non-inverting 8-PDIP device operates across a 4.5V to 18V supply range with dual independent channels and 3A peak output current capability. The part is currently active in production with 5200 units in stock. Substitute parts are identified when original inventory becomes unavailable or when design requirements necessitate alternative sourcing from qualified manufacturers meeting equivalent electrical and mechanical specifications.

Substiute Parts

TC4424VPA

Microchip TechnologyIn Stock: 5217TC4424VPA Datasheet

Current PartRFQ

MIC4424YN

Microchip TechnologyIn Stock: 5117MIC4424YN Datasheet

MFR RecommendedRFQ

MIC4424ZN

Microchip TechnologyIn Stock: 1433MIC4424ZN Datasheet

MFR RecommendedRFQ

IR4427PBF

International RectifierIn Stock: 3317IR4427PBF Datasheet

MFR RecommendedRFQ

MC33152PG

onsemiIn Stock: 3894MC33152PG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TC4424VPA are qualified based on the following critical parameters that determine functional equivalence:

Core Substitution Criteria:

• Driven Configuration: Low-Side (all substitutes match)
• Number of Drivers: 2 independent channels (all substitutes match)
• Package / Case: 8-DIP (0.300", 7.62mm) (all substitutes match)
• Mounting Type: Through Hole (all substitutes match)
• Input Type: Non-Inverting (all substitutes match)

Electrical Compatibility Parameters:

• Voltage - Supply range must encompass or overlap with 4.5V ~ 18V
• Current - Peak Output (Source, Sink) must meet or exceed 3A, 3A
• Operating Temperature range must cover -40°C ~ 150°C or be compatible with application requirements
• Logic Voltage thresholds (VIL, VIH) must be compatible with system logic levels

All four substitute parts meet the core substitution criteria. Variations in rise/fall time and specific gate type support (IGBT compatibility in IR4427PBF) represent secondary performance characteristics that do not prevent substitution when primary electrical and mechanical parameters align.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Microchip Technology): MIC4424YN and MIC4424ZN are direct Microchip alternatives with identical electrical specifications to TC4424VPA. Both maintain the same supply voltage range (4.5V ~ 18V), output current ratings (3A, 3A), and logic thresholds. MIC4424YN supports the full -40°C ~ 150°C temperature range matching TC4424VPA. MIC4424ZN operates from 0°C ~ 150°C, suitable for applications not requiring sub-zero temperature performance. Both are ROHS3 compliant and active in production.

Secondary Substitute (International Rectifier): IR4427PBF provides low-side gate driving with extended supply voltage range (6V ~ 20V) and IGBT gate type support. Peak output current asymmetry (2.3A source, 3.3A sink) differs from TC4424VPA symmetrical 3A rating. Faster switching characteristics (15ns rise, 10ns fall) may benefit high-frequency applications. RoHS compliance status is not specified in available data.

Alternative Substitute (onsemi): MC33152PG operates within compatible supply range (6.1V ~ 18V) but provides reduced peak output current (1.5A, 1.5A), limiting suitability to lower-current gate drive applications. Slower switching performance (36ns rise, 32ns fall) and N-Channel MOSFET-only gate type support represent functional constraints. ROHS3 compliant and active in production.

Compliance Basis: All primary and secondary substitutes maintain active product status and meet ROHS3 compliance requirements where specified. Selection should prioritize MIC4424YN for direct replacement or IR4427PBF for applications requiring extended voltage range and IGBT support.

Frequently Asked Questions (FAQ)

Q: Can MIC4424YN directly replace TC4424VPA without PCB modifications? A: Yes. MIC4424YN shares identical package (8-DIP), pinout configuration, supply voltage range (4.5V ~ 18V), output current ratings (3A, 3A), and operating temperature range (-40°C ~ 150°C). No circuit modifications are required.

Q: What is the key difference between MIC4424YN and MIC4424ZN? A: Operating temperature range. MIC4424YN covers -40°C ~ 150°C (matching TC4424VPA), while MIC4424ZN operates from 0°C ~ 150°C. Select MIC4424YN for applications requiring sub-zero temperature performance.

Q: Is IR4427PBF suitable for all TC4424VPA applications? A: IR4427PBF is suitable for applications where supply voltage may exceed 18V (up to 20V) and IGBT gate driving is required. However, asymmetrical output current (2.3A source, 3.3A sink) versus TC4424VPA's symmetrical 3A rating may affect performance in balanced source/sink applications. Verify application requirements before substitution.

Q: Why does MC33152PG have lower peak output current than TC4424VPA? A: MC33152PG is rated for 1.5A peak output (both source and sink), compared to TC4424VPA's 3A. This device is suitable only for gate drive applications requiring lower current levels. Do not substitute in designs dependent on 3A output capability.

Q: Are all substitute parts ROHS3 compliant? A: MIC4424YN, MIC4424ZN, and MC33152PG are confirmed ROHS3 compliant. IR4427PBF RoHS compliance status is not specified in available documentation. Verify compliance requirements with supplier if regulatory certification is mandatory.

Q: Can these parts be used interchangeably in existing designs? A: All substitute parts use identical 8-DIP through-hole packaging and non-inverting input configuration. Electrical parameter compatibility depends on specific application requirements. Verify supply voltage range, output current demands, and temperature operating range before final selection.