IRS25091STRPBF Equivalent & Substitute Parts

Part Overview

The IRS25091STRPBF 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 IRS25091STRPBF is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure continued availability for new designs, production continuity, and system reliability in applications where this component is specified.

Substiute Parts

IRS25091STRPBF

Infineon TechnologiesIn Stock: 12844IRS25091STRPBF Datasheet

Current PartRFQ

IRS21091STRPBF

Infineon TechnologiesIn Stock: 9062IRS21091STRPBF Datasheet

MFR RecommendedRFQ

NCP5304DR2G

onsemiIn Stock: 1460NCP5304DR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IRS25091STRPBF must satisfy the following criteria to ensure functional and mechanical compatibility:

Critical Matching Parameters:

• Driven Configuration: Half-Bridge
• Channel Type: Synchronous
• Number of Drivers: 2
• Gate Type: IGBT, N-Channel MOSFET
• Input Type: Non-Inverting
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Voltage - Supply: 10V ~ 20V
• High Side Voltage - Max (Bootstrap): 600V

Allowable Parameter Variations: Substitute parts may exceed the original specifications in the following parameters without compromising compatibility:

• Logic Voltage - VIL, VIH: May be equal to or more stringent than 0.8V, 2.2V
• Current - Peak Output (Source, Sink): May equal or exceed 200mA source and 350mA sink
• Rise / Fall Time: May be equal to or faster than 150ns rise and 50ns fall
• Operating Temperature: May equal or exceed -40°C ~ 150°C range

The identified substitute parts IRS21091STRPBF and NCP5304DR2G meet all critical matching parameters and provide equal or superior electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

IRS21091STRPBF (Infineon Technologies)

This part is the manufacturer-recommended substitute for the IRS25091STRPBF. It maintains identical core functionality with active product status, ensuring long-term availability and supply chain stability. The IRS21091STRPBF provides superior electrical performance with increased peak output current (290mA source, 600mA sink versus 200mA source, 350mA sink) and faster switching times (100ns rise, 35ns fall versus 150ns rise, 50ns fall). Logic voltage thresholds are slightly higher (2.5V versus 2.2V), remaining within acceptable operating margins. This part is ROHS3 compliant, supporting environmental and regulatory requirements for new designs.

NCP5304DR2G (onsemi)

This part provides an alternative from a different manufacturer with active product status. The NCP5304DR2G delivers comparable performance with peak output current of 250mA source and 500mA sink, and the fastest switching times among the three options (85ns rise, 35ns fall). The operating temperature range is limited to -40°C ~ 125°C, which is 25°C lower than the original specification. This part features superior moisture sensitivity characteristics (MSL 1 versus MSL 2), providing extended shelf life without baking requirements. ROHS3 compliance is confirmed.

Selection between IRS21091STRPBF and NCP5304DR2G depends on application-specific requirements regarding maximum operating temperature and supply chain preferences.

Frequently Asked Questions (FAQ)

Q: Can IRS21091STRPBF directly replace IRS25091STRPBF in existing designs?

A: Yes. The IRS21091STRPBF is functionally compatible as a direct replacement. Both parts share identical half-bridge gate driver architecture, 8-SOIC package dimensions, and core electrical specifications including supply voltage range (10V ~ 20V), bootstrap voltage (600V), and non-inverting input logic. The IRS21091STRPBF provides equal or superior performance across all electrical parameters.

Q: What are the key differences between IRS21091STRPBF and NCP5304DR2G?

A: Both parts are functionally equivalent half-bridge gate drivers in 8-SOIC packages. Primary differences include: manufacturer (Infineon versus onsemi), peak output current ratings (IRS21091STRPBF: 290mA/600mA versus NCP5304DR2G: 250mA/500mA), switching speed (NCP5304DR2G is faster at 85ns/35ns), and maximum operating temperature (IRS21091STRPBF: 150°C versus NCP5304DR2G: 125°C). Both are ROHS3 compliant and active products.

Q: Is the operating temperature difference between IRS21091STRPBF and NCP5304DR2G significant?

A: The 25°C difference in maximum junction temperature (-40°C ~ 150°C versus -40°C ~ 125°C) is application-dependent. For systems operating near or above 125°C, IRS21091STRPBF is the appropriate choice. For applications with maximum operating temperatures below 125°C, NCP5304DR2G is suitable.

Q: Are there package compatibility concerns when substituting these parts?

A: No. All three parts use identical 8-SOIC (0.154", 3.90mm Width) surface mount packages. PCB footprints, solder reflow profiles, and mechanical mounting requirements are identical. No layout or assembly modifications are required.

Q: What is the significance of the MSL (Moisture Sensitivity Level) difference?

A: IRS25091STRPBF and IRS21091STRPBF are rated MSL 2, requiring baking at 125°C for 24 hours if exposed to moisture for more than one year in storage. NCP5304DR2G is rated MSL 1, eliminating this requirement. For long-term inventory management, NCP5304DR2G offers simplified handling procedures.

Q: Are logic voltage thresholds compatible across all three parts?

A: Yes. Logic voltage thresholds are VIL = 0.8V and VIH ranging from 2.2V to 2.5V across the three parts. All values are compatible with standard TTL and CMOS logic levels. The slight variations do not affect circuit design or signal integrity in typical applications.