IXDF404SI Low-Side Gate Driver IC Equivalent & Substitute Parts

Part Overview

The IXDF404SI is a low-side gate driver IC manufactured by IXYS, designed for driving IGBT, N-Channel, and P-Channel MOSFET devices. This 8-SOIC package device operates across a supply voltage range of 4.5V to 35V with dual independent channels supporting both inverting and non-inverting input configurations. The IXDF404SI is classified as obsolete, making identification of active equivalent and substitute parts essential for new designs and production continuity. Substitute parts must maintain functional compatibility while meeting current product availability and compliance requirements.

Substiute Parts

IXDF404SI

IXYSIn Stock: 1394IXDF404SI Datasheet

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IXDF602SI

IXYS Integrated Circuits DivisionIn Stock: 2674IXDF602SI Datasheet

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IXDF602SIA

IXYS Integrated Circuits DivisionIn Stock: 1399IXDF602SIA Datasheet

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IXDF602SIATR

IXYS Integrated Circuits DivisionIn Stock: 12703IXDF602SIATR Datasheet

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IXDF602SITR

IXYS Integrated Circuits DivisionIn Stock: 1008IXDF602SITR Datasheet

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IXDF604SI

IXYS Integrated Circuits DivisionIn Stock: 1523IXDF604SI Datasheet

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MIC4125YME

Microchip TechnologyIn Stock: 2111MIC4125YME Datasheet

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MIC4125YME-TR

Microchip TechnologyIn Stock: 1000281MIC4125YME-TR Datasheet

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MIC4128YME

Microchip TechnologyIn Stock: 1890MIC4128YME Datasheet

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MIC4425YM

Microchip TechnologyIn Stock: 1411MIC4425YM Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the IXDF404SI is determined by the following critical parameters:

Core Compatibility Requirements:

• Driven Configuration: Low-Side (mandatory match)
• Number of Drivers: 2 (mandatory match)
• Channel Type: Independent (mandatory match)
• Package / Case: 8-SOIC form factor (mandatory match)
• Mounting Type: Surface Mount (mandatory match)

Electrical Parameter Compatibility:

• Voltage - Supply: Must support the 4.5V ~ 35V range or a subset thereof
• Gate Type: Must support IGBT and/or N-Channel and/or P-Channel MOSFET operation
• Input Type: Must support Inverting and Non-Inverting configurations
• Current - Peak Output: Must meet or exceed 4A source and sink capability for direct replacement

Performance Considerations:

• Rise / Fall Time: Faster switching times are acceptable; slower times may impact circuit performance
• Operating Temperature: Must support the required application temperature range

Substitute parts are grouped into two categories: Direct Replacements (matching all electrical parameters) and Functional Equivalents (meeting core compatibility with parameter trade-offs).

Parameter Comparison

Engineering Selection Recommendations

Direct Replacement (Matching Current Capability):

The IXDF604SI is the primary direct replacement for the IXDF404SI. Both devices deliver 4A peak output current (source and sink), maintain the same supply voltage range (4.5V ~ 35V), and support identical gate type configurations. The IXDF604SI features faster switching times (9ns/8ns versus 16ns/13ns) and is actively manufactured. The operating temperature range differs slightly (-40°C ~ 125°C versus -55°C ~ 150°C); applications requiring the full -55°C lower temperature limit must evaluate thermal requirements independently.

Functional Equivalents (Reduced Current Capability):

The IXDF602 series (IXDF602SI, IXDF602SIA, IXDF602SIATR, IXDF602SITR) provides active alternatives with reduced peak output current (2A versus 4A). These parts maintain the full 4.5V ~ 35V supply voltage range and -55°C ~ 150°C operating temperature range. Applications with gate drive current requirements below 2A can utilize these parts without functional compromise. The IXDF602 series offers superior switching performance (7.5ns/6.5ns rise/fall times).

Cross-Manufacturer Alternatives:

Microchip Technology MIC4125YME and MIC4125YME-TR devices deliver 3A peak output current with reduced supply voltage range (4.5V ~ 20V). These parts are suitable for applications operating within the 20V maximum supply limit. The MIC4128YME provides 1.5A output current and is applicable only to low-current gate drive applications. The MIC4425YM supports the extended temperature range (-40°C ~ 150°C) but operates at reduced supply voltage (4.5V ~ 18V) and exhibits slower switching times (28ns/32ns).

Compliance and Availability:

All recommended substitute parts carry active product status and ROHS3 compliance. The IXDF602 series and IXDF604SI maintain IXYS manufacturing continuity. Microchip alternatives provide established supply chain availability with MSL ratings suitable for standard manufacturing environments.

Frequently Asked Questions (FAQ)

Q: Can the IXDF602SI directly replace the IXDF404SI?

A: The IXDF602SI is functionally compatible but with reduced peak output current (2A versus 4A). Direct substitution is valid only for applications requiring gate drive current below 2A. The IXDF602SI maintains identical supply voltage range (4.5V ~ 35V) and operating temperature range (-55°C ~ 150°C).

Q: What is the difference between IXDF602SI and IXDF602SIA?

A: Both parts are electrically identical. The primary difference is packaging: IXDF602SI uses 8-SOIC-EP (exposed pad), while IXDF602SIA uses standard 8-SOIC. Selection depends on PCB thermal design requirements and manufacturing capabilities.

Q: Is the IXDF604SI a true replacement for the IXDF404SI?

A: The IXDF604SI matches the 4A peak output current specification and maintains the 4.5V ~ 35V supply voltage range. The operating temperature range is narrower (-40°C ~ 125°C versus -55°C ~ 150°C). Applications operating within -40°C to 125°C can use IXDF604SI as a direct replacement with improved switching performance.

Q: Why do Microchip MIC4125 parts have a reduced supply voltage range?

A: The MIC4125 series is specified for 4.5V ~ 20V operation. Applications requiring supply voltages above 20V must use IXYS alternatives (IXDF602 or IXDF604 series).

Q: Can I use MIC4425YM in place of IXDF404SI?

A: The MIC4425YM is functionally compatible for low-side gate drive applications but operates at reduced maximum supply voltage (4.5V ~ 18V versus 4.5V ~ 35V) and exhibits slower switching times (28ns/32ns versus 16ns/13ns). Substitution is valid only for applications operating within 18V maximum supply and tolerating slower switching performance.

Q: What does the "TR" suffix indicate in part numbers like IXDF602SIATR?

A: The "TR" suffix indicates Tape & Reel packaging format, suitable for automated assembly processes. Functionally, IXDF602SIATR is identical to IXDF602SIA; the difference is packaging and delivery method.

Q: Are all substitute parts RoHS3 compliant?

A: All recommended substitute parts carry RoHS3 compliance certification. The obsolete IXDF404SI does not carry RoHS3 status.

Q: Which substitute part has the fastest switching time?

A: The IXDF602 series (IXDF602SI, IXDF602SIA, IXDF602SIATR, IXDF602SITR) offers the fastest switching performance at 7.5ns rise time and 6.5ns fall time.