IRS2109SPBF Equivalent & Substitute Parts

Part Overview

The IRS2109SPBF is a half-bridge gate driver IC manufactured by Infineon Technologies, designed for driving IGBT and N-Channel MOSFET configurations in power management applications. This device operates with a supply voltage range of 10V to 20V and provides synchronized dual-channel gate driving with a maximum bootstrap voltage of 600V. The IRS2109SPBF is classified as obsolete, making identification of active equivalent parts essential for new designs and production continuity. Substitute parts must maintain identical electrical performance characteristics and package compatibility to ensure direct replacement capability.

Substiute Parts

IRS2109SPBF

Infineon TechnologiesIn Stock: 30219IRS2109SPBF Datasheet

Current PartRFQ

IRS2109STRPBF

Infineon TechnologiesIn Stock: 48456IRS2109STRPBF Datasheet

MFR RecommendedRFQ

FAN7080MX-GF085

onsemiIn Stock: 5902FAN7080MX-GF085 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IRS2109SPBF is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Requirements:

• Driven configuration must be half-bridge with synchronous dual-channel operation
• Gate type must support IGBT and N-Channel MOSFET switching
• Supply voltage range must encompass or exceed 10V ~ 20V
• Logic voltage thresholds (VIL, VIH) must be compatible with 0.8V, 2.5V
• Peak output current specifications must meet or exceed 290mA source and 600mA sink
• Bootstrap voltage rating must be minimum 600V
• Input type must be non-inverting

Package and Physical Requirements:

• Package must be 8-SOIC with 0.154" (3.90mm) width for PCB footprint compatibility
• Surface mount mounting type required
• RoHS3 compliance mandatory

Identified Substitute Parts:

The IRS2109STRPBF (Infineon Technologies) meets all electrical and package requirements with identical specifications and active product status. The FAN7080MX-GF085 (onsemi) provides functional equivalence with enhanced performance characteristics and automotive-grade qualification, though with minor parameter variations within acceptable substitution tolerances.

Parameter Comparison

Engineering Selection Recommendations

IRS2109STRPBF (Infineon Technologies) is the primary substitute for the obsolete IRS2109SPBF. This part maintains identical electrical specifications and package configuration while offering active product status and continuous manufacturing support. Selection of IRS2109STRPBF ensures direct compatibility with existing designs without circuit modification. RoHS3 compliance and MSL 2 rating match the original specification.

FAN7080MX-GF085 (onsemi) provides functional equivalence with enhanced performance characteristics. The supply voltage range extends to 5.5V minimum (versus 10V), offering broader operational flexibility. Peak source current increases to 300mA, and switching times improve to 40ns rise and 25ns fall. Logic voltage threshold VIH increases to 2.7V, requiring verification against existing control signal levels. AEC-Q100 automotive qualification and MSL 3 rating indicate suitability for automotive and high-reliability applications. This part is appropriate for designs requiring enhanced performance or automotive-grade components.

Both substitute parts maintain the critical half-bridge synchronous dual-channel configuration, 600V bootstrap voltage rating, and 8-SOIC package footprint required for direct replacement.

Frequently Asked Questions (FAQ)

Q: Can IRS2109STRPBF directly replace IRS2109SPBF without PCB modifications?

A: Yes. IRS2109STRPBF maintains identical electrical specifications, logic voltage thresholds, output current ratings, and 8-SOIC package dimensions. Direct pin-for-pin substitution is possible without circuit redesign.

Q: What are the key differences between IRS2109STRPBF and FAN7080MX-GF085?

A: Both parts function as half-bridge gate drivers with identical bootstrap voltage and package specifications. FAN7080MX-GF085 offers lower minimum supply voltage (5.5V vs 10V), higher source current (300mA vs 290mA), faster switching times (40ns/25ns vs 100ns/35ns), and AEC-Q100 automotive qualification. Logic voltage VIH differs at 2.7V versus 2.5V, requiring control signal compatibility verification.

Q: Is FAN7080MX-GF085 suitable for non-automotive applications?

A: Yes. FAN7080MX-GF085 meets all electrical requirements for standard industrial applications. Automotive qualification indicates enhanced reliability and process control but does not restrict use to automotive designs.

Q: What packaging options are available for these substitutes?

A: IRS2109STRPBF is available in Cut Tape (CT) and Digi-Reel packaging. FAN7080MX-GF085 is supplied in Tape & Reel (TR) format. Both maintain the 8-SOIC package case for PCB compatibility.

Q: Are there moisture sensitivity considerations when substituting these parts?

A: IRS2109STRPBF maintains MSL 2 (1 Year) rating identical to the original. FAN7080MX-GF085 has MSL 3 (168 Hours), requiring shorter shelf life management and more stringent moisture control during storage and assembly.

Q: Do all three parts comply with RoHS3 requirements?

A: Yes. IRS2109SPBF, IRS2109STRPBF, and FAN7080MX-GF085 are all ROHS3 compliant and REACH unaffected.