IR2109SPBF Half-Bridge Gate Driver IC Equivalent & Substitute Parts

Part Overview

The IR2109SPBF 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 features non-inverting input logic with peak output currents of 200mA (source) and 350mA (sink).

The IR2109SPBF carries a "Not For New Designs" product status, indicating that Infineon has discontinued active development for this component. This status necessitates identifying functionally equivalent substitute parts that maintain compatibility with existing circuit designs while offering improved availability or enhanced performance characteristics.

Substiute Parts

IR2109SPBF

Infineon TechnologiesIn Stock: 2292IR2109SPBF Datasheet

Current PartRFQ

FAN7080MX-GF085

onsemiIn Stock: 5902FAN7080MX-GF085 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the IR2109SPBF is determined by strict alignment with the following critical parameters:

Core Functional Requirements:

• Driven Configuration: Half-Bridge topology
• Channel Type: Synchronous operation
• Number of Drivers: 2 channels
• Gate Type: IGBT and N-Channel MOSFET compatibility
• Input Type: Non-Inverting logic

Electrical Compatibility Criteria:

• Supply Voltage Range: Must encompass or overlap with 10V ~ 20V
• Logic Voltage Thresholds: VIL and VIH must be compatible with 0.8V and 2.9V
• Peak Output Current: Source and sink capabilities must meet or exceed 200mA and 350mA respectively
• Bootstrap Voltage Rating: Minimum 600V
• Operating Temperature Range: Must support -40°C ~ 150°C

Physical & Compliance Requirements:

• Package Type: 8-SOIC form factor
• RoHS Compliance: ROHS3 Compliant
• Mounting Type: Surface Mount

The FAN7080MX-GF085 manufactured by onsemi meets all substitution criteria and is classified as a manufacturer-recommended equivalent.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: FAN7080MX-GF085

The FAN7080MX-GF085 is the manufacturer-recommended equivalent for the IR2109SPBF. This onsemi device maintains full functional and electrical compatibility while offering the following advantages:

• Active product status with ongoing manufacturer support
• AEC-Q100 automotive qualification, providing enhanced reliability documentation
• Improved peak output current specifications (300mA source, 600mA sink versus 200mA and 350mA)
• Faster switching characteristics (40ns rise time, 25ns fall time versus 150ns and 50ns)
• Extended supply voltage range (5.5V minimum versus 10V minimum)
• Identical 8-SOIC package footprint enabling direct PCB replacement

The FAN7080MX-GF085 is supplied in Tape & Reel packaging with ROHS3 compliance. The MSL rating of 3 (168 Hours) requires adherence to moisture control procedures during storage and handling, compared to the IR2109SPBF MSL rating of 2 (1 Year).

Frequently Asked Questions (FAQ)

Q: Can the FAN7080MX-GF085 directly replace the IR2109SPBF in existing designs?

A: Yes. Both devices share identical 8-SOIC package geometry, pin configuration, and functional topology. The FAN7080MX-GF085 meets or exceeds all electrical specifications of the IR2109SPBF, including supply voltage range, logic thresholds, output current capability, and bootstrap voltage rating.

Q: What are the key differences between these two gate drivers?

A: The primary differences are product status and performance characteristics. The IR2109SPBF is discontinued (Not For New Designs), while the FAN7080MX-GF085 is active. The FAN7080MX-GF085 provides higher peak output currents, faster switching times, and a lower minimum supply voltage. The FAN7080MX-GF085 carries AEC-Q100 automotive qualification.

Q: Are there any moisture handling differences?

A: Yes. The IR2109SPBF has MSL 2 (1 Year shelf life), while the FAN7080MX-GF085 has MSL 3 (168 Hours shelf life). MSL 3 components require more stringent moisture control during storage and require baking before reflow soldering if moisture absorption limits are exceeded.

Q: Do both devices support the same gate types?

A: Yes. Both the IR2109SPBF and FAN7080MX-GF085 are designed to drive IGBT and N-Channel MOSFET configurations in half-bridge topologies with identical logic voltage thresholds and non-inverting input control.

Q: What is the bootstrap voltage rating for both devices?

A: Both devices support a maximum bootstrap voltage of 600V, enabling high-side gate drive in half-bridge power conversion circuits.

Q: Are both devices RoHS compliant?

A: Yes. Both the IR2109SPBF and FAN7080MX-GF085 are ROHS3 compliant and REACH unaffected.