IR2128S Equivalent & Substitute Parts

Part Overview

The IR2128S is a high-side or low-side gate driver IC manufactured by Infineon Technologies, designed for driving IGBT and N-Channel MOSFET gates in power management applications. The device operates with a supply voltage range of 12V to 20V and features inverting input logic with peak output currents of 250mA (source) and 500mA (sink). The IR2128S is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations.

Substiute Parts

IR2128S

Infineon TechnologiesIn Stock: 2453IR2128S Datasheet

Current PartRFQ

IR2128SPBF

Infineon TechnologiesIn Stock: 1153IR2128SPBF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the IR2128S is determined by strict equivalence across the following critical parameters:

• Driven Configuration: High-Side or Low-Side capability
• Channel Type: Single channel
• Number of Drivers: 1
• Gate Type: IGBT and N-Channel MOSFET compatibility
• Voltage - Supply: 12V ~ 20V range
• Logic Voltage - VIL, VIH: 0.8V and 3V thresholds
• Current - Peak Output: 250mA source and 500mA sink
• Input Type: Inverting logic
• High Side Voltage - Max (Bootstrap): 600 V
• Rise / Fall Time: 80ns rise and 40ns fall
• Operating Temperature: -40°C ~ 150°C (TJ)
• Package / Case: 8-SOIC form factor
• Base Product Number: IR2128 series

The IR2128SPBF meets all substitution criteria as a direct equivalent part from the same manufacturer and product series.

Parameter Comparison

Engineering Selection Recommendations

The IR2128SPBF is the direct substitute for the obsolete IR2128S. Both parts share identical electrical and mechanical specifications across all functional parameters. The primary distinction lies in product status and compliance certifications:

The IR2128S is classified as obsolete, whereas the IR2128SPBF maintains active product status from Infineon Technologies. The IR2128SPBF achieves ROHS3 compliance, compared to the non-compliant status of the IR2128S. The IR2128SPBF carries a Moisture Sensitivity Level (MSL) rating of 2 (1 Year), whereas the IR2128S is rated MSL 1 (Unlimited).

For new designs and ongoing system support, the IR2128SPBF is the appropriate selection due to its active status and regulatory compliance. Both parts are supplied in 8-SOIC packaging and are pin-compatible, requiring no circuit modifications for substitution.

Frequently Asked Questions (FAQ)

Q: Can the IR2128SPBF directly replace the IR2128S without circuit modifications?

A: Yes. The IR2128SPBF is electrically and mechanically equivalent to the IR2128S. Both devices share identical pin configurations, electrical specifications, and functional characteristics. No circuit redesign is required for substitution.

Q: Why is the IR2128S classified as obsolete?

A: The IR2128S has reached end-of-life status from Infineon Technologies. The IR2128SPBF is the active equivalent part and is recommended for all new designs and replacement applications.

Q: What is the difference in Moisture Sensitivity Level (MSL) between the two parts?

A: The IR2128S carries MSL 1 (Unlimited), indicating no moisture sensitivity constraints. The IR2128SPBF carries MSL 2 (1 Year), requiring storage in controlled humidity conditions for one year from the date of manufacture. Standard moisture-controlled packaging and handling procedures apply.

Q: Are both parts RoHS compliant?

A: The IR2128S is RoHS non-compliant. The IR2128SPBF is ROHS3 compliant, meeting current regulatory requirements for electronic components in regulated markets.

Q: What packaging options are available for the IR2128SPBF?

A: The IR2128SPBF is supplied in Tube packaging. Both the IR2128S and IR2128SPBF use the 8-SOIC (0.154", 3.90mm Width) package form factor.

Q: Are there any differences in operating temperature range?

A: No. Both the IR2128S and IR2128SPBF operate across the identical temperature range of -40°C to 150°C (TJ).