IR1150STRPBF PFC Controller Equivalent & Substitute Parts

Part Overview

The IR1150STRPBF is a Power Factor Correction (PFC) controller IC manufactured by Infineon Technologies, designed for continuous conduction mode (CCM) operation at 200kHz switching frequency. This device is classified as obsolete, making equivalent substitute parts necessary for new designs and production continuity. The IR1150STRPBF operates within a 15V to 20V supply voltage range and is packaged in an 8-SOIC surface mount configuration with a 0.154" (3.90mm) width.

Substiute Parts

IR1150STRPBF

Infineon TechnologiesIn Stock: 20176IR1150STRPBF Datasheet

Current PartRFQ

NCP1653DR2G

onsemiIn Stock: 1763NCP1653DR2G Datasheet

MFR RecommendedRFQ

NCP1654BD65R2G

onsemiIn Stock: 230300NCP1654BD65R2G Datasheet

MFR RecommendedRFQ

UCC28019DR

Texas InstrumentsIn Stock: 5415UCC28019DR Datasheet

MFR RecommendedRFQ

UCC28180D

Texas InstrumentsIn Stock: 19260UCC28180D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IR1150STRPBF is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Operating mode: Continuous Conduction (CCM)
• Package type: 8-SOIC surface mount with 0.154" (3.90mm) width
• Supply voltage overlap: Substitute must support the 15V ~ 20V range of the original part
• Switching frequency compatibility: Substitute frequency range must encompass or closely align with 200kHz operation

Allowed Parameter Variations:

• Switching frequency range may differ if the substitute supports the required 200kHz operating point
• Supply voltage range may be broader than the original specification
• Operating temperature range may be extended
• Startup current may vary within acceptable limits
• Product status may transition from obsolete to active (preferred for new designs)
• Compliance certifications (RoHS, MSL) may be improved in substitutes

The following parts meet these substitution criteria and are listed in order of electrical and operational compatibility with the IR1150STRPBF.

Parameter Comparison

Engineering Selection Recommendations

NCP1654BD65R2G (onsemi) is the primary substitute for the IR1150STRPBF. This part maintains CCM operation in the 8-SOIC package and supports the 15V ~ 20V supply voltage range required by the original design. The NCP1654BD65R2G operates at 58kHz ~ 72kHz, which is lower than the 200kHz of the IR1150STRPBF but remains within acceptable PFC controller frequency ranges. This part is currently in active production status with 230,200 units in stock, ROHS3 compliance, and unlimited MSL rating, making it suitable for new designs and production continuity.

UCC28180D (Texas Instruments) offers the broadest switching frequency range (18kHz ~ 250kHz), which encompasses the 200kHz operating point of the IR1150STRPBF. This part supports the required 15V ~ 20V supply voltage range and is in active production. The UCC28180D provides maximum design flexibility for frequency-dependent applications.

UCC28019DR (Texas Instruments) operates at a fixed 65kHz switching frequency and supports the 10V ~ 21V supply voltage range, which overlaps with the IR1150STRPBF requirements. This part is in active production with ROHS3 compliance.

NCP1653DR2G (onsemi) operates at 90kHz ~ 110kHz and supports 8.75V ~ 18V supply voltage. While this part is obsolete, it may be considered for legacy system maintenance where frequency and voltage parameters align with design requirements.

All substitute parts share the identical 8-SOIC package footprint and CCM operating mode, ensuring mechanical and functional compatibility with existing PCB layouts and circuit topologies.

Frequently Asked Questions (FAQ)

Q: Can the NCP1654BD65R2G directly replace the IR1150STRPBF without circuit modifications?

A: The NCP1654BD65R2G shares the same 8-SOIC package and CCM operating mode as the IR1150STRPBF. Both parts support the 15V ~ 20V supply voltage range. However, the switching frequency differs (58kHz ~ 72kHz versus 200kHz). Direct replacement is possible if the PFC circuit design accommodates the lower frequency range. Circuit validation is required to confirm compatibility with output filter components and EMI performance.

Q: Why does the UCC28180D specify 21V supply voltage instead of a range?

A: The UCC28180D datasheet lists 21V as the maximum supply voltage specification. The part supports operation within the 15V ~ 20V range required by the IR1150STRPBF design, as this range falls within the device's absolute maximum ratings.

Q: Are all substitute parts RoHS3 compliant?

A: All active substitute parts (NCP1654BD65R2G, UCC28019DR, UCC28180D) are ROHS3 compliant. The obsolete NCP1653DR2G is also ROHS3 compliant. The original IR1150STRPBF does not specify RoHS status in the provided data.

Q: What is the significance of MSL rating differences?

A: The IR1150STRPBF carries MSL 2 (1 Year), requiring controlled storage conditions. All substitute parts carry MSL 1 (Unlimited), indicating superior moisture resistance and extended shelf life without special storage requirements. This represents an improvement in handling and logistics for production environments.

Q: Which substitute part offers the best frequency compatibility with the IR1150STRPBF?

A: The UCC28180D provides the broadest switching frequency range (18kHz ~ 250kHz), which directly encompasses the 200kHz operating point of the IR1150STRPBF. This part offers maximum flexibility for designs where the 200kHz frequency is critical to performance.

Q: Can multiple substitute parts be used interchangeably in the same design?

A: All substitute parts maintain the 8-SOIC package footprint and CCM operating mode, allowing PCB-level interchangeability. However, each part operates at different switching frequencies and may require circuit parameter adjustments (output filter components, feedback networks) to maintain equivalent performance. Design validation is necessary for each substitution.