IXDF402SI Low-Side Gate Driver IC Equivalent & Substitute Parts

Part Overview

The IXDF402SI is a low-side gate driver IC manufactured by IXYS, designed for driving IGBT and MOSFET power switches in power management applications. This device operates across a 4.5V to 35V supply range and delivers 2A peak output current with independent dual-channel configuration. The IXDF402SI is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production support. Substitute parts maintain functional compatibility while offering active product status and enhanced availability.

Substiute Parts

IXDF402SI

IXYSIn Stock: 1130IXDF402SI Datasheet

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IXDF602SI

IXYS Integrated Circuits DivisionIn Stock: 2674IXDF602SI Datasheet

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IXDF604SI

IXYS Integrated Circuits DivisionIn Stock: 1523IXDF604SI Datasheet

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IXDF604SIA

IXYS Integrated Circuits DivisionIn Stock: 2251IXDF604SIA Datasheet

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IXDF604SIATR

LittelfuseIn Stock: 2830IXDF604SIATR Datasheet

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IXDF604SITR

IXYS Integrated Circuits DivisionIn Stock: 793IXDF604SITR Datasheet

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MIC4428YM

Microchip TechnologyIn Stock: 9250MIC4428YM Datasheet

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MIC4428YM-TR

Microchip TechnologyIn Stock: 1428MIC4428YM-TR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IXDF402SI are grouped based on the following critical parameters that determine functional compatibility:

Core Compatibility Parameters:

• Driven Configuration: Low-Side (all substitutes match)
• Number of Drivers: 2 (all substitutes match)
• Channel Type: Independent (all substitutes match)
• Input Type: Inverting, Non-Inverting (all substitutes match)
• Package / Case: 8-SOIC form factor (all substitutes match)
• Mounting Type: Surface Mount (all substitutes match)
• Voltage - Supply: 4.5V ~ 35V (all substitutes match or exceed)
• Logic Voltage - VIL, VIH: 0.8V, 3V (all substitutes match)

Substitution Categories:

Category 1: Direct Functional Equivalents (IXYS Family) IXDF602SI, IXDF604SI, IXDF604SIA, IXDF604SIATR, and IXDF604SITR maintain identical driven configuration, channel architecture, and package specifications. These parts differ in peak output current capability and operating temperature ranges, allowing selection based on application requirements.

Category 2: Cross-Manufacturer Alternative (Microchip) MIC4428YM and MIC4428YM-TR provide low-side gate driver functionality with identical package and dual-channel configuration. These parts operate within a reduced supply voltage range (4.5V ~ 18V) and deliver lower peak output current (1.5A), requiring application-level verification for voltage and current compatibility.

Parameter Comparison

Engineering Selection Recommendations

IXDF602SI is the preferred direct substitute for the IXDF402SI. This part maintains identical supply voltage range (4.5V ~ 35V), peak output current (2A), and operating temperature range (-55°C ~ 150°C). The IXDF602SI is active and ROHS3 compliant, with enhanced thermal performance through an exposed pad package variant. Inventory availability is 2586 units.

IXDF604SI, IXDF604SIA, IXDF604SIATR, and IXDF604SITR provide higher peak output current (4A) within the same 4.5V ~ 35V supply range. These parts are suitable for applications requiring increased drive capability. Operating temperature is reduced to -40°C ~ 125°C. All variants are active and ROHS3 compliant. Selection between these variants depends on packaging requirements (Tube, Tape & Reel) and package type (standard 8-SOIC or exposed pad variant).

MIC4428YM and MIC4428YM-TR are cross-manufacturer alternatives from Microchip Technology. These parts are suitable only for applications operating within the reduced supply voltage range of 4.5V ~ 18V and requiring peak output current of 1.5A or less. The MIC4428 family exhibits slower switching characteristics (20ns rise, 29ns fall time) compared to IXYS alternatives. Both variants are active and ROHS3 compliant. Selection between tube and cut tape packaging depends on procurement requirements.

Frequently Asked Questions (FAQ)

Q: Can IXDF602SI directly replace IXDF402SI in existing designs?

A: Yes. The IXDF602SI maintains identical electrical specifications for supply voltage (4.5V ~ 35V), peak output current (2A), logic voltage thresholds, and operating temperature range (-55°C ~ 150°C). Package footprint is identical (8-SOIC). The primary difference is the exposed pad variant available for IXDF602SI, which provides improved thermal performance. No circuit modifications are required.

Q: What is the difference between IXDF604SI and IXDF604SIA?

A: Both parts are functionally identical with 4A peak output current and 4.5V ~ 35V supply range. The primary difference is packaging: IXDF604SI includes an exposed pad (8-SOIC-EP), while IXDF604SIA uses standard 8-SOIC without exposed pad. Selection depends on thermal management requirements and PCB layout capabilities.

Q: Can MIC4428YM replace IXDF402SI?

A: MIC4428YM is not a direct replacement. While both are low-side gate drivers in 8-SOIC packages with dual independent channels, the MIC4428YM operates within a reduced supply voltage range (4.5V ~ 18V) and delivers lower peak output current (1.5A). Use MIC4428YM only if your application operates within these electrical constraints. Switching speed is also slower (20ns/29ns vs. 8ns/8ns).

Q: What does "Exposed Pad" mean in the package specification?

A: Exposed pad (EP) variants include a thermal pad on the bottom of the package connected to the ground plane. This improves heat dissipation during high-current operation. Standard 8-SOIC packages without exposed pad rely on lead frame conduction for thermal management. Select exposed pad variants for applications with sustained high-current switching or elevated ambient temperatures.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All active substitute parts listed (IXDF602SI, IXDF604 family, and MIC4428 family) are ROHS3 compliant. The original IXDF402SI compliance status is not specified in available documentation.

Q: What is the difference between Tube and Tape & Reel packaging?

A: Tube packaging is suitable for manual handling and small-quantity orders. Tape & Reel (TR) packaging is designed for automated pick-and-place assembly and high-volume production. Both contain identical components; packaging selection depends on manufacturing process and order volume requirements.

Q: Does operating temperature range affect substitution compatibility?

A: Operating temperature range affects application suitability but not electrical compatibility. IXDF602SI maintains the full -55°C ~ 150°C range of the original IXDF402SI. IXDF604 variants operate within -40°C ~ 125°C. MIC4428 variants operate within -40°C ~ 150°C. Select parts based on your application's temperature requirements.