IRS2509SPBF Equivalent & Substitute Parts

Part Overview

The IRS2509SPBF 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 a maximum bootstrap voltage of 600V. The IRS2509SPBF is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and new design implementations.

Substiute Parts

IRS2509SPBF

Infineon TechnologiesIn Stock: 2247IRS2509SPBF Datasheet

Current PartRFQ

NCP5304DR2G

onsemiIn Stock: 1460NCP5304DR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IRS2509SPBF is determined by strict equivalence across the following critical parameters:

• Driven configuration must be half-bridge
• Channel type must be synchronous with 2 drivers
• Gate type compatibility with IGBT and N-Channel MOSFET
• Supply voltage range of 10V ~ 20V
• Non-inverting input logic
• Bootstrap voltage rating of 600V minimum
• 8-SOIC package form factor with identical physical dimensions

The NCP5304DR2G from onsemi meets all these substitution criteria. While this substitute exhibits improved electrical performance characteristics (higher peak output current and faster switching times), it maintains functional compatibility within the specified parameter envelope.

Parameter Comparison

Engineering Selection Recommendations

The NCP5304DR2G is the designated manufacturer-recommended substitute for the obsolete IRS2509SPBF. Selection of this alternative is supported by the following factors:

The NCP5304DR2G maintains active product status with onsemi, ensuring long-term availability and supply chain continuity. The device achieves ROHS3 compliance, meeting current environmental and regulatory requirements. The improved moisture sensitivity level (MSL 1 versus MSL 2) provides extended shelf life and reduced handling constraints during manufacturing and storage.

Both devices share identical package geometry and pinout compatibility, enabling direct board-level substitution without layout modifications. The NCP5304DR2G delivers enhanced electrical performance through higher peak output current capability and faster switching times, which may improve system efficiency and thermal characteristics in existing designs.

The operating temperature range of the NCP5304DR2G extends to 125°C, which is suitable for most industrial and commercial applications. Applications requiring operation above 125°C junction temperature must retain the IRS2509SPBF or identify alternative solutions.

Frequently Asked Questions (FAQ)

Q: Can the NCP5304DR2G be used as a direct replacement for the IRS2509SPBF?

A: Yes. Both devices share identical package form factor (8-SOIC), pinout configuration, and functional specifications for half-bridge gate driving. The NCP5304DR2G is the manufacturer-recommended substitute.

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

A: The NCP5304DR2G provides higher peak output current (250mA source, 500mA sink versus 200mA source, 350mA sink) and faster switching times (85ns rise, 35ns fall versus 150ns rise, 50ns fall). The NCP5304DR2G operates to a maximum junction temperature of 125°C compared to 150°C for the IRS2509SPBF.

Q: Are there any compatibility concerns with logic voltage levels?

A: Logic voltage thresholds are compatible. The IRS2509SPBF specifies VIH of 2.2V while the NCP5304DR2G specifies 2.3V. Both devices accept standard 3.3V and 5V logic signals without modification.

Q: Does the package change affect PCB layout?

A: No. Both devices use identical 8-SOIC packaging with 0.154-inch width. No layout modifications are required for substitution.

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

A: The NCP5304DR2G carries MSL 1 (unlimited shelf life) compared to MSL 2 (1 year) for the IRS2509SPBF. This provides greater flexibility in inventory management and reduces risk of moisture-related failures during storage and handling.

Q: Is the NCP5304DR2G suitable for applications requiring operation above 125°C?

A: No. The NCP5304DR2G maximum junction temperature is 125°C. Applications requiring operation above this temperature must use alternative solutions or retain the IRS2509SPBF if available.

Q: Are both devices compliant with current environmental regulations?

A: The NCP5304DR2G is ROHS3 compliant. The IRS2509SPBF compliance status is not specified in available documentation. Both devices are REACH unaffected.