IR2155PBF Equivalent & Substitute Parts

Part Overview

The IR2155PBF 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 features an RC input circuit and operates across a supply voltage range of 10V to 20V with a maximum bootstrap voltage of 600V. The IR2155PBF is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and new procurement strategies.

Substiute Parts

IR2155PBF

Infineon TechnologiesIn Stock: 2231IR2155PBF Datasheet

Current PartRFQ

IR2111PBF

Infineon TechnologiesIn Stock: 2159IR2111PBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IR2155PBF is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Driven Configuration: Half-Bridge
• Channel Type: Synchronous
• Number of Drivers: 2
• Gate Type: IGBT, N-Channel MOSFET
• Voltage - Supply: 10V ~ 20V
• Current - Peak Output (Source, Sink): 250mA, 500mA
• High Side Voltage - Max (Bootstrap): 600V
• Operating Temperature: -40°C ~ 150°C (TJ)
• Package / Case: 8-DIP (0.300", 7.62mm)

The IR2111PBF qualifies as a substitute part because it maintains all critical electrical parameters and mechanical compatibility. The primary functional difference is the input circuit type: the IR2155PBF uses an RC input circuit, while the IR2111PBF uses a non-inverting input circuit. Both devices operate within identical supply voltage ranges, output current specifications, and thermal ratings, enabling direct substitution in applications where the input signal conditioning is compatible with non-inverting logic.

Parameter Comparison

Engineering Selection Recommendations

The IR2111PBF serves as the primary substitute for the obsolete IR2155PBF. Both devices maintain identical electrical specifications for supply voltage, output current, bootstrap voltage, and operating temperature range. The IR2111PBF offers improved compliance status, classified as "Not For New Designs" rather than fully obsolete, and carries ROHS3 compliance certification.

The functional distinction between these devices lies in input circuit architecture. The IR2155PBF incorporates an RC input circuit, while the IR2111PBF uses non-inverting logic. Selection between these parts depends on the input signal conditioning requirements of the application. If the existing design utilizes RC input filtering, the IR2111PBF's non-inverting input may require signal conditioning adjustments. Both devices are mechanically and thermally compatible, sharing identical 8-DIP packaging and thermal operating ranges.

Frequently Asked Questions (FAQ)

Q: Can the IR2111PBF directly replace the IR2155PBF without circuit modifications?

A: Electrical and mechanical compatibility is confirmed. However, the input circuit type differs: IR2155PBF uses RC input, while IR2111PBF uses non-inverting input. Circuit modifications may be required depending on the signal source characteristics and existing input conditioning.

Q: Are the output current specifications identical between these devices?

A: Yes. Both the IR2155PBF and IR2111PBF specify identical peak output current ratings of 250mA source and 500mA sink, ensuring equivalent drive capability for IGBT and N-Channel MOSFET gates.

Q: What is the significance of the product status difference?

A: The IR2155PBF is classified as obsolete, indicating discontinued manufacturing and limited availability. The IR2111PBF is classified as "Not For New Designs," indicating limited support but potentially greater availability. For new designs, neither part is recommended; however, for legacy system support, the IR2111PBF represents the most viable substitute.

Q: Are the thermal operating ranges compatible?

A: Yes. Both devices operate across the identical temperature range of -40°C to 150°C (junction temperature), ensuring thermal compatibility in equivalent applications.

Q: Does the IR2111PBF meet current compliance standards?

A: The IR2111PBF carries ROHS3 compliance certification. The IR2155PBF compliance status is not specified in the provided data. Both devices are REACH unaffected and classified under ECCN EAR99.

Q: Are the package dimensions identical?

A: Yes. Both devices use 8-DIP packaging with dimensions of 0.300" (7.62mm), enabling direct physical substitution on existing PCB layouts.