IXDI402SI Low-Side Gate Driver IC Equivalent & Substitute Parts

Part Overview

The IXDI402SI is a low-side gate driver IC manufactured by IXYS, designed for driving IGBT and MOSFET gates in power management applications. This device operates with a supply voltage range of 4.5V to 35V and features dual independent channels with 2A peak output current capability. The IXDI402SI is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production support. Substitute parts must maintain compatibility across electrical specifications, package form factor, and functional performance to ensure seamless integration into existing or new circuit designs.

Substiute Parts

IXDI402SI

IXYSIn Stock: 1036IXDI402SI Datasheet

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IR4426SPBF

Infineon TechnologiesIn Stock: 2605IR4426SPBF Datasheet

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IR4426STRPBF

Infineon TechnologiesIn Stock: 20720IR4426STRPBF Datasheet

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IXDI602SI

IXYS Integrated Circuits DivisionIn Stock: 1377IXDI602SI Datasheet

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IXDI602SIA

IXYS Integrated Circuits DivisionIn Stock: 1335IXDI602SIA Datasheet

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IXDI602SIATR

IXYS Integrated Circuits DivisionIn Stock: 2133IXDI602SIATR Datasheet

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IXDI602SITR

IXYS Integrated Circuits DivisionIn Stock: 798IXDI602SITR Datasheet

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IXDI604SI

IXYS Integrated Circuits DivisionIn Stock: 1127IXDI604SI Datasheet

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IXDI604SIA

IXYS Integrated Circuits DivisionIn Stock: 3475IXDI604SIA Datasheet

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IXDI604SIATR

IXYS Integrated Circuits DivisionIn Stock: 2453IXDI604SIATR Datasheet

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IXDI604SITR

IXYS Integrated Circuits DivisionIn Stock: 2938IXDI604SITR Datasheet

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UCC27323D

Texas InstrumentsIn Stock: 1461UCC27323D Datasheet

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UCC27323DR

Texas InstrumentsIn Stock: 5247UCC27323DR Datasheet

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UCC37323DR

Texas InstrumentsIn Stock: 16478UCC37323DR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IXDI402SI are grouped based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Critical Matching Parameters:

• Driven Configuration: Low-Side (all substitutes must be low-side drivers)
• Package / Case: 8-SOIC form factor with 0.154" (3.90mm) width
• Mounting Type: Surface Mount
• Input Type: Inverting
• Number of Drivers: 2 independent channels
• Gate Type Compatibility: Must support IGBT and/or MOSFET switching

Electrical Compatibility Parameters:

• Voltage - Supply: Must encompass or match the 4.5V ~ 35V range
• Logic Voltage (VIL, VIH): Must be compatible with 0.8V / 3V logic levels
• Current - Peak Output: Must meet or exceed 2A source and sink capability
• Operating Temperature: Must cover the required thermal range

Substitutes are divided into two categories: direct equivalents from IXYS (IXDI602 and IXDI604 series) and cross-manufacturer alternatives (Infineon IR4426 series). All listed substitutes maintain the 8-SOIC package and low-side inverting driver configuration.

Parameter Comparison

Engineering Selection Recommendations

IXYS IXDI602 Series (IXDI602SI, IXDI602SIA, IXDI602SITR): These parts are direct functional equivalents to the IXDI402SI with identical electrical specifications and operating temperature range. All IXDI602 variants maintain the 4.5V to 35V supply voltage range, 2A peak output current, and -55°C to 150°C junction temperature rating. The IXDI602 series is actively produced and ROHS3 compliant, providing long-term availability. Variants differ only in packaging format (tube, cut tape, or tape & reel) and whether an exposed pad is included. Selection among IXDI602 variants depends on procurement and assembly requirements.

IXYS IXDI604 Series (IXDI604SI, IXDI604SIA, IXDI604SITR): The IXDI604 series provides enhanced performance with 4A peak output current (double the IXDI402SI capability) while maintaining the same 4.5V to 35V supply range and 8-SOIC package. Operating temperature is reduced to -40°C to 125°C. These parts are suitable for applications requiring higher gate drive current. All IXDI604 variants are actively produced and ROHS3 compliant.

Infineon IR4426 Series (IR4426SPBF, IR4426STRPBF): The IR4426 series provides cross-manufacturer substitution with compatible low-side inverting driver functionality in 8-SOIC packaging. The supply voltage range is narrower (6V to 20V) compared to the IXDI402SI, limiting applicability to designs operating within this window. Peak output current is 2.3A source and 3.3A sink, meeting or exceeding the 2A requirement. IR4426STRPBF is actively produced with ROHS3 compliance and improved availability. IR4426SPBF is obsolete. Logic voltage threshold is 2.7V (VIH), which is compatible with standard 3V logic levels.

Compliance and Availability: All recommended active substitutes are ROHS3 compliant. IXDI602 and IXDI604 series maintain MSL 1 (unlimited moisture sensitivity), while IR4426 variants carry MSL 2 (1 year). For new designs, prioritize active production parts: IXDI602SITR, IXDI602SIATR, IXDI604SIATR, IXDI604SITR, or IR4426STRPBF.

Frequently Asked Questions (FAQ)

Q: Can IXDI602SI directly replace IXDI402SI without circuit modification? A: Yes. The IXDI602SI maintains identical electrical specifications, supply voltage range (4.5V to 35V), logic thresholds (0.8V / 3V), peak output current (2A), and operating temperature range (-55°C to 150°C). The 8-SOIC package is mechanically compatible. No circuit changes are required.

Q: What is the difference between IXDI602SI and IXDI602SITR? A: Both parts are electrically identical. IXDI602SI is supplied in tube packaging, while IXDI602SITR is supplied in tape & reel format. Selection depends on assembly process requirements and procurement volume.

Q: Why does IXDI604 have higher peak output current than IXDI402SI? A: The IXDI604 series is a higher-performance variant with 4A peak output capability. It is suitable for applications requiring greater gate drive current while maintaining the same 8-SOIC package and low-side inverting configuration. Operating temperature range is reduced to -40°C to 125°C.

Q: Can IR4426SPBF replace IXDI402SI? A: IR4426SPBF is electrically compatible but is obsolete. For new designs, IR4426STRPBF (active production) is the preferred cross-manufacturer alternative. The supply voltage range is narrower (6V to 20V), so applications must operate within this window. Logic voltage threshold is 2.7V, which is compatible with standard logic levels.

Q: What does "exposed pad" mean in the IXDI602SI and IXDI604SI variants? A: Exposed pad variants include a thermal pad on the underside of the 8-SOIC package for improved heat dissipation. This is beneficial in high-power applications. Standard variants without exposed pad are suitable for lower-power applications. Both are mechanically compatible with standard 8-SOIC PCB layouts.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All active production substitutes (IXDI602 series, IXDI604 series, and IR4426STRPBF) are ROHS3 compliant. The original IXDI402SI compliance status is not specified.

Q: What is the moisture sensitivity level (MSL) difference? A: IXYS parts (IXDI402, IXDI602, IXDI604) carry MSL 1 (unlimited shelf life). Infineon IR4426 parts carry MSL 2 (1 year shelf life). MSL 1 provides longer storage capability without baking requirements.