IR2085STRPBF Half-Bridge Gate Driver IC Equivalent & Substitute Parts

Part Overview

The IR2085STRPBF is a half-bridge gate driver IC manufactured by Infineon Technologies, designed for driving N-channel MOSFETs in half-bridge configurations. This device features an RC input circuit, 1A peak output current capability, and operates across a 10V to 15V supply voltage range with a maximum bootstrap voltage of 100V. The part is qualified to AEC-Q100 automotive standards and operates reliably across -40°C to 150°C junction temperature.

The IR2085STRPBF carries a "Not For New Designs" product status, indicating that Infineon has discontinued active development for this part number. This status necessitates identifying functionally equivalent alternatives for new applications or when inventory becomes constrained. The AUIR2085STR serves as the direct functional equivalent with active product status.

Substiute Parts

IR2085STRPBF

Infineon TechnologiesIn Stock: 9650IR2085STRPBF Datasheet

Current PartRFQ

AUIR2085STR

Infineon TechnologiesIn Stock: 13303AUIR2085STR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the IR2085STRPBF is determined by strict equivalence across the following critical parameters:

Functional Parameters:

• Driven configuration (Half-Bridge)
• Number of drivers (2)
• Gate type (N-Channel MOSFET)
• Supply voltage range (10V ~ 15V)
• Peak output current (1A source, 1A sink)
• Input circuit type (RC Input Circuit)
• Bootstrap voltage capability (100V maximum)
• Switching characteristics (Rise/Fall time: 40ns/20ns)

Environmental & Compliance Parameters:

• Operating temperature range (-40°C ~ 150°C)
• Automotive qualification (AEC-Q100)
• RoHS3 compliance
• Package form factor (8-SOIC)

The AUIR2085STR meets all functional and compliance requirements for direct substitution. Both parts share identical electrical specifications, automotive-grade qualification, and physical packaging. The primary distinction is product lifecycle status: IR2085STRPBF is discontinued from new design consideration, while AUIR2085STR maintains active product status.

Parameter Comparison

Engineering Selection Recommendations

The AUIR2085STR is the direct functional equivalent for applications currently using the IR2085STRPBF. Selection between these parts should be based on the following criteria:

For New Designs: Use AUIR2085STR. This part maintains active product status from Infineon Technologies, ensuring continued availability, manufacturing support, and compliance with current automotive standards. Active product status provides assurance of long-term supply chain stability and technical support.

For Existing Inventory Management: The IR2085STRPBF remains functionally suitable for applications already in production or qualification, provided that supply constraints do not necessitate transition. Both parts carry identical electrical performance, automotive qualification (AEC-Q100), and RoHS3 compliance.

Moisture Sensitivity Consideration: The AUIR2085STR carries MSL 3 (168 hours) compared to IR2085STRPBF MSL 2 (1 year). This difference requires attention to storage and handling protocols during manufacturing. MSL 3 components require baking before reflow if storage duration exceeds 168 hours in standard humidity conditions.

Channel Configuration Note: The IR2085STRPBF specifies Independent channel type, while AUIR2085STR specifies Synchronous channel type. Both configurations support half-bridge gate driving with identical electrical performance parameters. This distinction does not affect functional substitution for standard half-bridge applications.

Frequently Asked Questions (FAQ)

Q: Can AUIR2085STR directly replace IR2085STRPBF in existing PCB designs?

A: Yes. Both parts share identical electrical specifications, package form factor (8-SOIC), pin configuration, and automotive qualification. No PCB redesign is required. Moisture sensitivity level differences require attention to component storage and handling procedures during manufacturing.

Q: What is the significance of "Not For New Designs" status on the IR2085STRPBF?

A: This status indicates that Infineon has concluded active development and marketing of this part number. While existing inventory remains functional and suitable for ongoing production, new product designs should specify AUIR2085STR to ensure long-term supply chain continuity and manufacturer support.

Q: Are there electrical performance differences between these parts?

A: No. Both parts deliver identical electrical performance: 1A peak output current (source and sink), 40ns/20ns rise/fall times, 10V to 15V supply voltage range, 100V bootstrap voltage capability, and -40°C to 150°C operating temperature range.

Q: How does the difference in channel type (Independent vs. Synchronous) affect substitution?

A: Both channel configurations support half-bridge gate driving with identical electrical performance. This distinction reflects internal circuit architecture but does not affect functional compatibility for standard half-bridge applications. Substitution is valid for all half-bridge gate driver applications.

Q: What precautions are necessary due to the MSL 3 rating of AUIR2085STR?

A: MSL 3 components must be baked at 125°C for 24 hours if storage duration exceeds 168 hours in standard humidity conditions (23°C, 50% RH) before reflow soldering. Establish component storage protocols and tracking procedures to manage moisture exposure within manufacturing operations.

Q: Are both parts RoHS3 compliant?

A: Yes. Both IR2085STRPBF and AUIR2085STR are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for automotive and industrial applications.

Q: What is the package specification for both parts?

A: Both parts use 8-SOIC (0.154", 3.90mm width) surface mount packaging. Pin-to-pin compatibility is confirmed, enabling direct substitution without PCB modification.