IR2101 Half-Bridge Gate Driver IC - Equivalent & Substitute Parts

Part Overview

The IR2101 is a half-bridge gate driver IC manufactured by Infineon Technologies, designed to drive IGBT and N-Channel MOSFET devices in half-bridge configurations. This component operates with independent channels and provides non-inverting logic control with a supply voltage range of 10V to 20V.

The IR2101 is classified as obsolete and not recommended for new designs. Due to its discontinued status, identifying functionally equivalent substitute parts is necessary for maintenance, repair, and legacy system support where original components are no longer readily available or cost-prohibitive to source.

Substiute Parts

IR2101

Infineon TechnologiesIn Stock: 18785IR2101 Datasheet

Current PartRFQ

IR2101PBF

Infineon TechnologiesIn Stock: 3434IR2101PBF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IR2101 is determined by strict equivalence across the following critical parameters:

• Driven Configuration: Half-Bridge topology
• Number of Drivers: 2 independent channels
• Gate Type: IGBT and N-Channel MOSFET compatibility
• Voltage - Supply: 10V ~ 20V operating range
• Logic Voltage Levels: VIL 0.8V, VIH 3V
• Current - Peak Output: Source 210mA, Sink 360mA
• Input Type: Non-Inverting logic
• High Side Voltage - Max (Bootstrap): 600V
• Rise / Fall Time: 100ns rise, 50ns fall (typical)
• Operating Temperature: -40°C ~ 150°C (TJ)
• Package / Case: 8-DIP (0.300", 7.62mm)
• Mounting Type: Through Hole

The IR2101PBF is a direct functional equivalent that maintains all electrical and mechanical specifications while differing only in packaging format and compliance status.

Parameter Comparison

Engineering Selection Recommendations

The IR2101PBF is a direct electrical and mechanical equivalent to the IR2101. Both parts share identical functional specifications across all critical parameters including driver configuration, voltage ratings, current capabilities, timing characteristics, and thermal operating range.

The primary distinction between these parts is compliance status. The IR2101PBF achieves ROHS3 compliance, whereas the original IR2101 is RoHS non-compliant. For applications subject to RoHS regulatory requirements or environmental compliance mandates, the IR2101PBF is the appropriate selection.

Both parts are classified as not recommended for new designs. For legacy system maintenance and repair applications, either part may be selected based on availability, packaging requirements, and compliance obligations specific to the end application.

Frequently Asked Questions (FAQ)

Q: Can IR2101PBF be used as a direct replacement for IR2101?

A: Yes. The IR2101PBF is electrically and mechanically identical to the IR2101. All functional parameters, including driver configuration, voltage ratings, current output, timing characteristics, and operating temperature range are equivalent. Both parts use the same 8-DIP through-hole package.

Q: What is the difference between IR2101 and IR2101PBF?

A: The primary differences are packaging format and compliance status. The IR2101PBF is supplied in tube packaging and meets ROHS3 compliance requirements, while the IR2101 is RoHS non-compliant. Electrical and mechanical specifications are identical.

Q: Are there any compatibility concerns when substituting IR2101PBF for IR2101?

A: No compatibility concerns exist. The parts are pin-compatible, functionally equivalent, and operate identically in half-bridge gate driver applications. PCB layout and circuit design require no modification.

Q: Why is the IR2101 classified as obsolete?

A: The IR2101 is no longer in active production. Infineon Technologies has transitioned this product line, making the IR2101PBF the available equivalent for sourcing purposes.

Q: Does RoHS compliance affect circuit performance?

A: No. RoHS compliance relates to material composition and environmental standards, not electrical performance. The IR2101PBF operates identically to the IR2101 in all functional aspects.

Q: What is the bootstrap voltage rating used for?

A: The 600V bootstrap voltage rating specifies the maximum voltage that can be applied across the high-side driver output. This parameter is critical for half-bridge applications where the high-side driver must operate at elevated potentials relative to ground.