IXDI504SIA Low-Side Gate Driver IC Equivalent & Substitute Parts

Part Overview

The IXDI504SIA is a low-side gate driver IC manufactured by IXYS, designed for driving IGBT and MOSFET devices in power management applications. This component operates with a supply voltage range of 4.5V to 30V and delivers peak output currents of 4A (source and sink). The device is packaged in an 8-SOIC form factor with surface mount configuration.

The IXDI504SIA is classified as obsolete. Identifying functionally equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for systems utilizing this gate driver topology.

Substiute Parts

IXDI504SIA

IXYSIn Stock: 3478IXDI504SIA 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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IXDI604SIA

IXYS Integrated Circuits DivisionIn Stock: 3475IXDI604SIA 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

Substitution eligibility for the IXDI504SIA is determined by the following critical parameters:

Mandatory Compatibility Criteria:

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

Functional Compatibility Parameters:

• Gate Type: Must support IGBT and/or MOSFET switching
• Voltage - Supply: Must encompass or overlap the 4.5V ~ 30V range
• Current - Peak Output: Must meet or exceed 4A source and sink requirements
• Logic Voltage (VIL, VIH): Must be compatible with system logic levels
• Operating Temperature: Must cover the required thermal range

Substitute parts are grouped into two categories based on electrical performance alignment:

Category A - Full Parameter Alignment: Parts with supply voltage range ≥4.5V ~ 30V and peak output current ≥4A (source and sink). These parts maintain electrical equivalence with the IXDI504SIA.

Category B - Reduced Supply Voltage Range: Parts with supply voltage range of 4.5V ~ 20V or 4.5V ~ 15V. These parts are suitable for applications operating within their specified voltage envelope but may not support the full 30V upper limit of the original design.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute - Full Electrical Equivalence:

IXDI604SIA is the recommended primary substitute. This part maintains identical electrical specifications to the IXDI504SIA, including 4A peak output current (source and sink), 9ns/8ns rise/fall times, and support for IGBT and MOSFET gate types. The IXDI604SIA is currently in active production status with ROHS3 compliance and MSL 1 rating. The only operational difference is the reduced operating temperature range (-40°C to 125°C ambient versus -55°C to 150°C junction), which may require thermal analysis for applications operating at temperature extremes.

Secondary Substitute - Extended Supply Voltage:

IXDI602SIA and IXDI602SIATR offer extended supply voltage capability (4.5V ~ 35V) and maintain full IGBT/MOSFET support with MSL 1 rating. These parts deliver 2A peak output current, which is half the IXDI504SIA specification. Selection of these parts is appropriate only for applications where 2A output current is sufficient for gate drive requirements. Both variants are in active production with ROHS3 compliance.

Alternative Substitute - Texas Instruments UCC Series:

UCC27323D, UCC27323DR, and UCC37323DR provide 4A peak output current matching the IXDI504SIA. These parts operate within a 4.5V ~ 15V supply range, restricting their use to applications not exceeding 15V supply voltage. UCC27323D is classified as Last Time Buy; UCC27323DR and UCC37323DR are in active production. All three maintain ROHS3 compliance and MSL 1 rating. Logic voltage thresholds (1V, 2V) differ from the IXDI504SIA (0.8V, 3V), requiring verification of compatibility with system logic levels.

Not Recommended - Infineon IR4426 Series:

IR4426SPBF and IR4426STRPBF deliver only 2.3A source and 3.3A sink current, below the 4A requirement of the IXDI504SIA. Supply voltage range is limited to 6V ~ 20V. IR4426SPBF is obsolete; IR4426STRPBF is active. These parts are suitable only for applications with reduced current requirements and supply voltage constraints.

Frequently Asked Questions (FAQ)

Q: Can IXDI602SIA replace IXDI504SIA in all applications?

A: IXDI602SIA is electrically compatible in package and topology but delivers 2A peak output current versus the 4A specification of IXDI504SIA. Substitution is valid only if the gate drive circuit design requires ≤2A output current. The extended supply voltage range (4.5V ~ 35V) provides additional operational margin.

Q: What is the difference between IXDI602SIA and IXDI602SIATR?

A: Both parts are electrically identical. IXDI602SIA is supplied in tube packaging; IXDI602SIATR is supplied in cut tape and Digi-Reel format. Selection depends on procurement and assembly requirements. Both are active production parts with ROHS3 compliance.

Q: Why is UCC27323D listed as Last Time Buy?

A: Last Time Buy status indicates the manufacturer has announced end-of-life for this part. While currently available, long-term supply cannot be guaranteed. UCC27323DR and UCC37323DR are recommended as active alternatives from the Texas Instruments UCC series.

Q: Are there package differences between substitute parts?

A: All substitute parts listed use the 8-SOIC (0.154", 3.90mm Width) package, ensuring PCB footprint compatibility. IXDI602SI and IXDI602SITR include an exposed pad variant (8-SOIC-EP), which provides enhanced thermal performance but requires PCB design modification to accommodate the pad.

Q: What is the impact of different logic voltage thresholds?

A: IXDI504SIA specifies VIL = 0.8V and VIH = 3V. UCC27323 series parts specify VIL = 1V and VIH = 2V. These differences affect input signal compatibility. Systems using 3.3V logic levels may experience marginal operation with UCC27323 parts. Verification with actual system logic levels is necessary before design implementation.

Q: Can IR4426SPBF or IR4426STRPBF be used as direct replacements?

A: IR4426 series parts are not recommended as direct replacements due to reduced peak output current (2.3A source, 3.3A sink versus 4A). Supply voltage range is also restricted to 6V ~ 20V. These parts are suitable only for applications with lower current requirements and supply voltage constraints.

Q: What is the significance of MSL rating differences?

A: IXDI504SIA and all recommended substitutes carry MSL 1 (Unlimited) rating except IR4426 series (MSL 2, 1 Year). MSL 1 indicates no moisture sensitivity limitations for storage and handling. IR4426 parts require controlled storage conditions and have a one-year shelf life limit from date of manufacture.

Q: Is IXDI604SIA the best substitute choice?

A: IXDI604SIA is the optimal substitute for applications requiring full electrical equivalence. It maintains 4A peak output current, identical rise/fall times, and IGBT/MOSFET support. The only limitation is reduced operating temperature range (-40°C to 125°C ambient). For applications operating within standard industrial temperature ranges, IXDI604SIA provides seamless compatibility.