Infineon IR2118 High-Side Gate Driver IC - Equivalent & Substitute Parts

Part Overview

The Infineon IR2118 is a high-side gate driver IC designed for driving IGBT and N-Channel MOSFET devices in power management applications. This component operates as an inverting driver with a single channel configuration, capable of delivering peak output currents of 250mA (source) and 500mA (sink). The IR2118 is classified as obsolete, making identification of active equivalent parts essential for new designs and production continuity. The IR2118SPBF represents the direct active substitute, maintaining identical electrical and mechanical specifications while offering current availability and modern compliance certifications.

Substiute Parts

98-0231

Infineon TechnologiesIn Stock: 98598-0231 Datasheet

Current PartRFQ

IR2118SPBF

Infineon TechnologiesIn Stock: 2426IR2118SPBF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The IR2118SPBF qualifies as a direct substitute for the IR2118 based on strict parameter equivalence across all critical electrical and mechanical specifications. Substitution validity is determined by the following parameters:

• Driven Configuration: Both parts are High-Side drivers
• Channel Type and Number of Drivers: Both are single-channel, single-driver configurations
• Gate Type: Both support IGBT and N-Channel MOSFET switching
• Supply Voltage Range: Identical 10V ~ 20V specification
• Logic Voltage Thresholds: Matching VIL (6V) and VIH (9.5V) levels
• Peak Output Current: Identical 250mA source and 500mA sink ratings
• Input Type: Both are inverting drivers
• Bootstrap Voltage Rating: Both rated to 600V maximum
• Switching Performance: Identical rise time (80ns) and fall time (40ns)
• Package and Mounting: Both use 8-SOIC surface mount package with identical physical dimensions

Parameter Comparison

Engineering Selection Recommendations

The IR2118SPBF is the appropriate selection for applications currently using or specifying the obsolete IR2118. Both parts maintain identical electrical performance and physical form factor, ensuring direct compatibility in existing circuit designs without modification.

The IR2118SPBF offers the additional advantage of active product status, ensuring long-term availability and supply chain continuity. The part is ROHS3 compliant, meeting modern environmental and regulatory requirements for new product development and manufacturing in regulated markets.

The MSL rating difference (MSL 1 vs MSL 2) reflects standard industry practice for active components. MSL 2 with a 1-year floor life is suitable for standard manufacturing environments and storage conditions.

Frequently Asked Questions (FAQ)

Q: Can IR2118SPBF be used as a direct replacement for IR2118 in existing designs?

A: Yes. The IR2118SPBF is electrically and mechanically identical to the IR2118. All electrical parameters, including supply voltage, output current, switching times, and bootstrap voltage ratings, are equivalent. The 8-SOIC package dimensions are identical, allowing direct PCB substitution without layout modifications.

Q: What is the primary reason to transition from IR2118 to IR2118SPBF?

A: The IR2118 is classified as obsolete, creating supply and long-term availability risks. The IR2118SPBF is an active product from the same manufacturer with identical specifications, ensuring reliable sourcing for current and future production.

Q: Are there compliance differences between these parts?

A: Yes. The IR2118SPBF is ROHS3 compliant, while the IR2118 is RoHS non-compliant. For applications subject to environmental regulations or customer requirements mandating RoHS compliance, the IR2118SPBF is the required choice.

Q: Does the MSL rating difference affect circuit performance?

A: No. MSL (Moisture Sensitivity Level) ratings affect component handling and storage procedures, not electrical performance. MSL 2 (1-year floor life) is standard for active components and suitable for typical manufacturing environments.

Q: Are the package dimensions identical?

A: Yes. Both parts use the 8-SOIC package with 0.154" (3.90mm) width. PCB footprints, solder pad layouts, and component placement are identical.

Q: What applications use the IR2118 / IR2118SPBF gate driver?

A: These high-side gate drivers are used in power conversion circuits including motor drives, inverters, DC-DC converters, and other applications requiring IGBT or N-Channel MOSFET switching control with high-side gate drive capability.