IR2118STR High-Side Gate Driver IC Equivalent & Substitute Parts

Part Overview

The IR2118STR is a high-side gate driver IC manufactured by Infineon Technologies, designed for driving IGBT and N-Channel MOSFET devices in power management applications. This component operates with a single inverting channel and supports bootstrap voltage up to 600V, making it suitable for half-bridge and full-bridge converter topologies.

The IR2118STR carries an obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and access components with active manufacturing support and improved compliance certifications.

Substiute Parts

IR2118STR

Infineon TechnologiesIn Stock: 1608IR2118STR Datasheet

Current PartRFQ

IR2118STRPBF

Infineon TechnologiesIn Stock: 16212IR2118STRPBF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IR2118STR is determined by strict equivalence across the following critical parameters:

• Driven configuration (High-Side)
• Channel type and number (Single channel)
• Gate type compatibility (IGBT, N-Channel MOSFET)
• Input logic type (Inverting)
• Supply voltage range (10V ~ 20V)
• Logic threshold levels (VIL 6V, VIH 9.5V)
• Peak output current specifications (250mA source, 500mA sink)
• Bootstrap voltage rating (600V maximum)
• Switching characteristics (Rise/Fall times 80ns/40ns)
• Package form factor (8-SOIC)
• Operating temperature range (-40°C ~ 150°C)

The IR2118STRPBF represents a direct substitute, maintaining identical electrical and mechanical specifications while differing in packaging format and product lifecycle status.

Parameter Comparison

Engineering Selection Recommendations

The IR2118STRPBF is the direct functional equivalent of the IR2118STR. Selection between these parts should be based on the following factors:

Product Status: The IR2118STR is obsolete, while IR2118STRPBF maintains active manufacturing status. For new designs or long-term production requirements, IR2118STRPBF is the appropriate choice to ensure ongoing supply availability and manufacturer support.

Compliance Certifications: IR2118STRPBF achieves ROHS3 compliance, whereas IR2118STR is RoHS non-compliant. Applications subject to RoHS regulatory requirements must use IR2118STRPBF.

Packaging Format: IR2118STR is supplied in bulk packaging, while IR2118STRPBF is supplied in Tape & Reel format. Selection depends on production volume and assembly line requirements. Tape & Reel packaging is standard for automated pick-and-place assembly operations.

Moisture Sensitivity: IR2118STRPBF has MSL 2 (1 Year shelf life requirement), compared to IR2118STR MSL 1 (unlimited). Storage and handling procedures must account for this difference.

All electrical and mechanical parameters remain identical, ensuring pin-for-pin and functional compatibility in existing circuit designs.

Frequently Asked Questions (FAQ)

Q: Can IR2118STRPBF be used as a direct replacement for IR2118STR in existing designs?

A: Yes. Both parts are electrically and mechanically identical. They share the same 8-SOIC package footprint, pin configuration, and all functional specifications including supply voltage, output current, bootstrap voltage, and switching characteristics. No circuit modifications are required.

Q: What is the primary difference between IR2118STR and IR2118STRPBF?

A: The primary differences are product lifecycle status, packaging format, and compliance certifications. IR2118STRPBF is actively manufactured, supplied in Tape & Reel format, and RoHS3 compliant. IR2118STR is obsolete, supplied in bulk, and RoHS non-compliant.

Q: Why should I choose IR2118STRPBF over IR2118STR?

A: IR2118STRPBF is recommended for new designs and ongoing production due to active manufacturing support, RoHS3 compliance for regulated markets, and standard Tape & Reel packaging for automated assembly. The obsolete status of IR2118STR creates supply chain risk.

Q: Are there any compatibility concerns with the 8-SOIC package?

A: No. Both parts use identical 8-SOIC (0.154", 3.90mm Width) packaging. PCB footprints, solder reflow profiles, and assembly processes are fully compatible.

Q: What does MSL 2 (1 Year) mean for IR2118STRPBF?

A: Moisture Sensitivity Level 2 indicates the component must be stored in controlled humidity conditions and used within one year of the manufacturing date code. Proper dry storage and handling procedures are required to prevent moisture absorption that could affect solderability and reliability.

Q: Can I use IR2118STRPBF in high-temperature applications?

A: Yes. IR2118STRPBF operates across the full temperature range of -40°C to 150°C (junction temperature), making it suitable for industrial and automotive applications requiring extended temperature performance.

Q: What is the bootstrap voltage rating, and why is it important?

A: The maximum bootstrap voltage is 600V. This rating determines the maximum high-side floating voltage the gate driver can support. In half-bridge and full-bridge topologies, this specification ensures safe operation of the high-side MOSFET or IGBT gate drive circuit.