IRS4427SPBF Equivalent & Substitute Parts

Part Overview

The IRS4427SPBF is a low-side gate driver IC manufactured by Infineon Technologies, designed for driving IGBT and N-Channel MOSFET gates in power management applications. This component operates with independent dual-channel configuration and non-inverting input logic. The IRS4427SPBF is classified as obsolete, which necessitates identification of active equivalent parts for new designs and ongoing production requirements. The IRS4427STRPBF serves as the direct active substitute, maintaining identical electrical and mechanical specifications while offering improved availability.

Substiute Parts

IRS4427SPBF

Infineon TechnologiesIn Stock: 3930IRS4427SPBF Datasheet

Current PartRFQ

IRS4427STRPBF

Infineon TechnologiesIn Stock: 35163IRS4427STRPBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IRS4427SPBF is determined by strict equivalence across all electrical and mechanical parameters. The substitute part must maintain identical specifications in the following critical areas:

• Driven configuration (low-side operation)
• Independent dual-channel architecture
• Gate drive capability for IGBT and N-Channel MOSFET devices
• Supply voltage range (6V ~ 20V)
• Logic input thresholds (VIL = 0.8V, VIH = 2.5V)
• Peak output current ratings (source 2.3A, sink 3.3A)
• Non-inverting input logic
• Propagation delay characteristics (rise/fall time 25ns)
• Operating temperature range (-40°C ~ 150°C)
• 8-SOIC surface mount package with identical physical dimensions
• Regulatory compliance (ROHS3, REACH Unaffected)

The IRS4427STRPBF meets all these criteria and is classified as the manufacturer-recommended substitute.

Parameter Comparison

Engineering Selection Recommendations

The IRS4427STRPBF is the direct equivalent for the obsolete IRS4427SPBF. Both components are manufactured by Infineon Technologies and share identical electrical specifications and package geometry. The primary distinction is product status: the IRS4427SPBF is obsolete, while the IRS4427STRPBF maintains active production status.

Selection of the IRS4427STRPBF is appropriate for:

• Replacement in existing designs currently using IRS4427SPBF
• New production designs requiring low-side gate driver functionality
• Applications requiring ROHS3 compliance and REACH compliance verification
• Systems operating within the specified supply voltage range (6V ~ 20V) and temperature range (-40°C ~ 150°C)

Both parts maintain identical regulatory compliance certifications, ensuring no additional qualification or testing is required for substitution.

Frequently Asked Questions (FAQ)

Q: Can the IRS4427STRPBF be used as a direct replacement for the IRS4427SPBF?

A: Yes. The IRS4427STRPBF is electrically and mechanically identical to the IRS4427SPBF. All electrical parameters, package dimensions, and pin configurations are equivalent. The primary difference is that IRS4427STRPBF is in active production status.

Q: Are there any differences in packaging between these parts?

A: Both parts use the 8-SOIC surface mount package with identical physical dimensions (0.154" width, 3.90mm). The IRS4427STRPBF is available in Cut Tape (CT) and Digi-Reel packaging options, while the IRS4427SPBF packaging format is not specified in the available data.

Q: What are the critical parameters that determine substitution eligibility?

A: Substitution is determined by equivalence in driven configuration (low-side), channel type (independent dual-channel), gate type (IGBT and N-Channel MOSFET), supply voltage range (6V ~ 20V), output current ratings (2.3A source, 3.3A sink), input logic type (non-inverting), propagation delay (25ns rise/fall time), operating temperature range (-40°C ~ 150°C), and package type (8-SOIC).

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the IRS4427SPBF and IRS4427STRPBF are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components.

Q: Why is the IRS4427SPBF classified as obsolete?

A: The IRS4427SPBF has been discontinued by Infineon Technologies. The IRS4427STRPBF serves as the active production equivalent and should be used for all new designs and ongoing production requirements.