IXDI602SI Low-Side Gate Driver IC Equivalent & Substitute Parts

Part Overview

The IXDI602SI is a low-side gate driver IC manufactured by IXYS Integrated Circuits Division, designed for driving IGBT and MOSFET gates in power management applications. This device operates as an inverting driver with dual independent channels in an 8-SOIC package with exposed pad. The part is currently in active production status with 1310 units in stock.

Substitute parts are necessary when the IXDI602SI reaches end-of-life, when alternative packaging formats are required, or when supply chain constraints necessitate equivalent component selection. Substitutes must maintain functional compatibility across driven configuration, channel architecture, and electrical performance parameters.

Substiute Parts

IXDI602SI

IXYS Integrated Circuits DivisionIn Stock: 1377IXDI602SI Datasheet

Current PartRFQ

IR4426SPBF

Infineon TechnologiesIn Stock: 2605IR4426SPBF Datasheet

MFR RecommendedRFQ

IR4426STRPBF

Infineon TechnologiesIn Stock: 20720IR4426STRPBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the IXDI602SI is determined by the following critical parameters:

• Driven Configuration: Must be Low-Side
• Channel Type: Must be Independent
• Number of Drivers: Must be 2
• Input Type: Must be Inverting
• Package / Case: Must be 8-SOIC form factor
• Mounting Type: Must be Surface Mount
• Gate Type Compatibility: Must support IGBT and/or N-Channel MOSFET operation

The substitute parts IR4426SPBF and IR4426STRPBF meet these core functional requirements. Both are manufactured by Infineon Technologies and maintain the same driven configuration, channel architecture, and package footprint. The primary differences between these substitutes and the main part relate to supply voltage range, output current ratings, and switching speed characteristics, which are documented in the parameter comparison table below.

Parameter Comparison

Engineering Selection Recommendations

IR4426STRPBF is the preferred substitute for the IXDI602SI based on the following criteria:

• Product Status: IR4426STRPBF maintains Active status, ensuring continued availability and manufacturing support, whereas IR4426SPBF is marked Obsolete.
• Compliance: Both substitute parts maintain ROHS3 compliance and REACH Unaffected status, matching the regulatory posture of the main part.
• Packaging Availability: IR4426STRPBF is available in Cut Tape (CT) & Digi-Reel® format with 20,623 units in stock, providing superior supply chain flexibility compared to IR4426SPBF (Tube packaging, 2,500 units).

IR4426SPBF remains functionally compatible but should be considered only when IR4426STRPBF is unavailable, due to its Obsolete product status.

Application Constraints: The IR4426 series operates within a narrower supply voltage range (6V ~ 20V) compared to the IXDI602SI (4.5V ~ 35V). Applications requiring supply voltages below 6V or above 20V cannot use these substitutes. The IR4426 series also exhibits slower switching characteristics (15ns rise time, 10ns fall time versus 7.5ns and 6.5ns respectively) and lower minimum operating temperature (-40°C versus -55°C).

Frequently Asked Questions (FAQ)

Q: Can IR4426SPBF or IR4426STRPBF be used as direct pin-for-pin replacements for IXDI602SI?

A: Yes, both IR4426 variants are pin-compatible with the IXDI602SI in 8-SOIC package form factor. However, electrical parameter differences must be evaluated for the specific application circuit.

Q: What is the primary difference between IR4426SPBF and IR4426STRPBF?

A: Both parts are electrically identical. The difference is packaging format: IR4426SPBF is supplied in Tube packaging, while IR4426STRPBF is supplied in Cut Tape (CT) & Digi-Reel® format. IR4426STRPBF also maintains Active product status with significantly higher inventory availability.

Q: Are there supply voltage limitations when substituting with IR4426 parts?

A: Yes. The IR4426 series operates within 6V ~ 20V supply range, whereas the IXDI602SI operates within 4.5V ~ 35V. Applications requiring supply voltages outside the 6V ~ 20V window cannot use IR4426 substitutes.

Q: What is the impact of the slower switching speed in IR4426 parts?

A: The IR4426 series exhibits rise and fall times of 15ns and 10ns respectively, compared to 7.5ns and 6.5ns for the IXDI602SI. This results in slower gate drive transitions, which may affect switching losses and EMI characteristics in high-frequency applications.

Q: Does the lower minimum operating temperature of IR4426 parts affect compatibility?

A: The IR4426 series operates from -40°C minimum junction temperature, while the IXDI602SI operates from -55°C. Applications requiring operation below -40°C cannot use IR4426 substitutes.

Q: What is the significance of the MSL rating difference?

A: The IXDI602SI has MSL 1 (Unlimited shelf life), while IR4426 parts have MSL 2 (1 Year shelf life). This affects storage and handling requirements for IR4426 substitutes, requiring more stringent moisture control during storage and assembly.

Q: Are both substitute parts RoHS compliant?

A: Yes, both IR4426SPBF and IR4426STRPBF are ROHS3 Compliant and REACH Unaffected, matching the regulatory compliance of the IXDI602SI.