IXDI502SIAT/R Low-Side Gate Driver IC Equivalent & Substitute Parts

Part Overview

The IXDI502SIAT/R is a low-side gate driver IC manufactured by IXYS, designed to drive IGBT and MOSFET devices in power management applications. This 8-SOIC surface mount component operates across a wide supply voltage range of 4.5V to 30V and features independent dual-channel configuration with inverting input logic. The product is currently obsolete, making equivalent and substitute parts necessary for ongoing system support, maintenance, and new design implementations where legacy compatibility is required.

Substiute Parts

IXDI502SIAT/R

IXYSIn Stock: 1554IXDI502SIAT/R Datasheet

Current PartRFQ

IR4426SPBF

Infineon TechnologiesIn Stock: 2605IR4426SPBF Datasheet

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IR4426STRPBF

Infineon TechnologiesIn Stock: 20720IR4426STRPBF Datasheet

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TC1426COA

Microchip TechnologyIn Stock: 5441TC1426COA Datasheet

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TC1426COA713

Microchip TechnologyIn Stock: 3437TC1426COA713 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the IXDI502SIAT/R is determined by the following critical parameters:

Primary Compatibility Criteria:

• Driven Configuration: Low-Side
• Number of Drivers: 2 (independent channels)
• Input Type: Inverting
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount

Secondary Compatibility Criteria:

• Gate Type: IGBT and/or MOSFET (N-Channel, P-Channel)
• Voltage - Supply: Must encompass or overlap the 4.5V ~ 30V range
• Logic Voltage - VIL, VIH: Must be compatible with 0.8V, 3V thresholds
• Current - Peak Output: Must meet or exceed 2A source and sink requirements
• Operating Temperature: Must support -55°C ~ 150°C range or applicable subset

Substitute parts are grouped based on their ability to meet these criteria while maintaining functional equivalence in low-side gate driver applications.

Parameter Comparison

Engineering Selection Recommendations

IR4426STRPBF (Infineon Technologies)

This part is the preferred substitute for new designs and ongoing production. It maintains identical low-side dual-channel inverting configuration with 8-SOIC packaging. The IR4426STRPBF is currently in active product status with ROHS3 compliance and superior moisture sensitivity rating (MSL 2). Supply voltage range of 6V ~ 20V covers the mid-range of the original part's 4.5V ~ 30V specification. Peak output current capability (2.3A source, 3.3A sink) exceeds the original 2A specification. Operating temperature range of -40°C ~ 150°C accommodates most applications, though it does not extend to the original -55°C lower limit. This part is available in high volume (20,623 pcs) in Cut Tape and Digi-Reel packaging.

TC1426COA / TC1426COA713 (Microchip Technology)

These parts provide active product status alternatives with full ROHS3 compliance. Both maintain the identical 8-SOIC package and low-side dual-channel inverting configuration. The TC1426COA713 variant offers tape and reel packaging suitable for automated assembly. Supply voltage range of 4.5V ~ 16V overlaps the original specification. Logic voltage thresholds (0.8V, 3V) match the original part exactly. Peak output current (1.2A source and sink) is lower than the original 2A specification and should be evaluated against application requirements. Operating temperature range of 0°C ~ 70°C is narrower than the original -55°C ~ 150°C range. TC1426COA features MSL 1 (unlimited moisture sensitivity), while TC1426COA713 has MSL 3 (168 hours).

IR4426SPBF (Infineon Technologies)

This part is obsolete but remains available in inventory (2,500 pcs). It provides functional equivalence with active product status alternatives. ROHS3 compliance and MSL 2 rating are superior to the original part. Supply voltage range of 6V ~ 20V and peak output current (2.3A, 3.3A) meet application requirements. Operating temperature range of -40°C ~ 150°C does not extend to the original -55°C lower limit.

Frequently Asked Questions (FAQ)

Q: Can IR4426STRPBF directly replace IXDI502SIAT/R in existing designs?

A: IR4426STRPBF is functionally equivalent for low-side gate driver applications. Both parts feature identical 8-SOIC packaging, dual independent channels, and inverting input logic. The IR4426STRPBF supply voltage range (6V ~ 20V) covers the mid-range of the original part's 4.5V ~ 30V specification. If your application operates below 6V or above 20V, verify that the IR4426STRPBF supply voltage range is acceptable. The IR4426STRPBF operating temperature range (-40°C ~ 150°C) does not extend to the original -55°C lower limit; confirm this is acceptable for your thermal environment.

Q: What is the difference between TC1426COA and TC1426COA713?

A: Both parts are identical in electrical specifications and package type (8-SOIC). The primary difference is packaging format: TC1426COA is supplied in tube packaging, while TC1426COA713 is supplied in tape and reel format. Tape and reel packaging (TC1426COA713) is standard for automated assembly processes. Tube packaging (TC1426COA) is suitable for manual assembly or lower-volume applications. Moisture sensitivity levels differ: TC1426COA has MSL 1 (unlimited), while TC1426COA713 has MSL 3 (168 hours).

Q: Why do some substitute parts have lower peak output current than the original IXDI502SIAT/R?

A: The TC1426COA and TC1426COA713 parts specify 1.2A peak output current (source and sink), compared to the original 2A specification. These parts are suitable for applications requiring lower drive current. If your design requires 2A or higher peak output current, select IR4426SPBF or IR4426STRPBF, which both specify 2.3A source and 3.3A sink current.

Q: Is the IXDI502SIAT/R still available for purchase?

A: The IXDI502SIAT/R is listed as obsolete. However, 1,494 pcs are currently in stock as new original inventory. For long-term supply assurance, transition to an active product status substitute such as IR4426STRPBF, TC1426COA, or TC1426COA713.

Q: What are the key parameters that determine substitution compatibility?

A: Substitution compatibility is determined by: driven configuration (low-side), number of drivers (2 independent channels), input type (inverting), package type (8-SOIC), and mounting type (surface mount). Secondary considerations include gate type support (IGBT and/or MOSFET), supply voltage range overlap, logic voltage threshold compatibility, peak output current capability, and operating temperature range. All substitute parts listed meet the primary compatibility criteria.

Q: Can I use TC1426COA in applications requiring -55°C operation?

A: No. The TC1426COA and TC1426COA713 operating temperature range is 0°C ~ 70°C (TA), which does not support -55°C operation. For applications requiring -55°C lower temperature limit, select IR4426SPBF or IR4426STRPBF, which both support -40°C ~ 150°C (TJ) operating range. Note that IR4426 variants do not extend to -55°C; if -55°C operation is mandatory, consult additional gate driver alternatives.

Q: What does MSL (Moisture Sensitivity Level) mean for component selection?

A: MSL indicates the maximum time a component can be exposed to ambient conditions (typically 30°C, 85% relative humidity) before soldering. MSL 1 (unlimited) allows indefinite storage without special handling. MSL 2 (1 year) requires storage within one year of manufacture. MSL 3 (168 hours) requires soldering within 168 hours of package opening. For supply chain flexibility and reduced handling requirements, parts with lower MSL numbers (MSL 1 or MSL 2) are preferred.