IRS2540C Equivalent & Substitute Parts

Part Overview

The IRS2540C is an LED Driver IC manufactured by Infineon Technologies, designed for buck converter applications with output dimming capability. This component operates at up to 200V and is classified as a Power Management (PMIC) device. The IRS2540C is currently listed as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

IRS2540C

Infineon TechnologiesIn Stock: 674IRS2540C Datasheet

Current PartRFQ

IRS25411STRPBF

Infineon TechnologiesIn Stock: 30236IRS25411STRPBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the IRS2540C is determined by functional equivalence in the LED driver controller category. The primary substitute, IRS25411STRPBF, shares the following critical parameters with the original part:

• Manufacturer: Infineon Technologies (same supplier ecosystem)
• Category: Power Management (PMIC) with LED driver functionality
• Topology: Step-Down (Buck) converter architecture
• Dimming Control: PWM dimming capability
• Compliance: REACH Unaffected, EAR99 classification
• Supply Voltage Range: 8V to 16.6V (compatible with typical LED driver applications)
• Operating Temperature: -25°C to 125°C (TJ)
• Frequency: 500kHz switching frequency

The IRS25411STRPBF represents an active product with current manufacturing status and improved availability compared to the obsolete IRS2540C.

Parameter Comparison

Engineering Selection Recommendations

The IRS25411STRPBF is the designated manufacturer-recommended substitute for the IRS2540C. Selection of this alternative is supported by:

• Active product status with current manufacturing and supply chain availability
• Identical regulatory compliance classification (REACH Unaffected, EAR99)
• Matching tariff classification (HTSUS 8542.39.0001)
• Equivalent functional architecture (buck topology with PWM dimming)
• Same manufacturer (Infineon Technologies) ensuring design continuity and technical support

The transition from IRS2540C to IRS25411STRPBF is appropriate for new designs and production continuity applications where the obsolete part is no longer available.

Frequently Asked Questions (FAQ)

Q: Why is the IRS2540C being replaced? A: The IRS2540C is classified as obsolete and no longer in active production. The IRS25411STRPBF provides equivalent LED driver functionality with current manufacturing status and improved supply availability.

Q: Are the IRS2540C and IRS25411STRPBF pin-compatible? A: Pin compatibility is not specified in the available technical parameters. The IRS25411STRPBF uses an 8-SOIC package. Circuit board layout and schematic verification are required before substitution.

Q: What is the difference in Moisture Sensitivity Level (MSL)? A: The IRS2540C has MSL 1 (unlimited shelf life), while the IRS25411STRPBF has MSL 2 (1-year shelf life). This affects storage and handling requirements but does not impact functional performance in operating applications.

Q: Can the IRS25411STRPBF be used in existing IRS2540C designs? A: Functional equivalence is established through shared topology, dimming capability, and compliance parameters. However, package differences and pinout verification are necessary before direct substitution in existing PCB designs.

Q: What is the supply voltage range for the IRS25411STRPBF? A: The IRS25411STRPBF operates with a supply voltage range of 8V to 16.6V, suitable for standard LED driver applications.