IRS21541CD LED Driver Controller Equivalent & Substitute Parts

Part Overview

The IRS21541CD is an LED driver controller IC manufactured by Infineon Technologies, designed for LED dimming applications. This component is classified as obsolete, which necessitates identification of active equivalent parts for ongoing design requirements and production continuity. The IRS21541CD operates as a die-level component with unlimited moisture sensitivity tolerance (MSL 1), making it suitable for controlled manufacturing environments.

Substiute Parts

IRS21541CD

Infineon TechnologiesIn Stock: 968IRS21541CD Datasheet

Current PartRFQ

IRS25411STRPBF

Infineon TechnologiesIn Stock: 30236IRS25411STRPBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The IRS21541CD has been identified with one manufacturer-recommended substitute: IRS25411STRPBF. This substitution is based on the following alignment criteria:

Functional Alignment:

• Both components serve LED driver controller applications
• Both support PWM dimming functionality
• Both are manufactured by Infineon Technologies, ensuring design continuity and support consistency

Compliance Alignment:

• Both components maintain REACH Unaffected status
• Both are classified under identical ECCN (EAR99) and HTSUS (8542.39.0001) codes
• Both comply with applicable regulatory frameworks for power management semiconductors

Product Status Consideration:

• IRS25411STRPBF is Active (current production), providing long-term availability
• IRS21541CD is Obsolete, making the active substitute essential for new designs and production planning

Parameter Comparison

Engineering Selection Recommendations

For Obsolete Part Replacement: The IRS21541CD is classified as obsolete. The IRS25411STRPBF is the manufacturer-recommended active substitute and should be selected for new designs and production continuity. This substitution maintains Infineon Technologies as the sole manufacturer source, ensuring consistent design support and supply chain reliability.

Compliance Considerations: Both components maintain identical regulatory classifications (REACH Unaffected, EAR99, HTSUS 8542.39.0001), confirming compliance equivalence for international trade and environmental standards.

Packaging and Integration: The IRS25411STRPBF is supplied in 8-SOIC surface mount packaging with Tape & Reel delivery, enabling automated assembly processes. Design integration requires PCB layout modifications from the original die-level implementation to accommodate the packaged component form factor.

Moisture and Environmental Handling: The IRS25411STRPBF carries MSL 2 (1 Year) classification, requiring controlled storage conditions compared to the unlimited MSL 1 rating of the original part. Manufacturing processes must implement appropriate moisture control protocols during component handling and assembly.

Frequently Asked Questions (FAQ)

Q: Why is the IRS21541CD being discontinued? A: The IRS21541CD is classified as obsolete by Infineon Technologies. The IRS25411STRPBF represents the active product line continuation for LED driver controller applications.

Q: Are the IRS21541CD and IRS25411STRPBF functionally equivalent? A: Both components serve LED driver controller applications with PWM dimming support. The IRS25411STRPBF is the manufacturer-designated substitute. Functional equivalence is confirmed by Infineon Technologies' substitution designation.

Q: What are the key differences between these parts? A: The primary differences are product status (obsolete vs. active), packaging format (die vs. 8-SOIC surface mount), and moisture sensitivity level (MSL 1 vs. MSL 2). The IRS25411STRPBF includes specified electrical parameters (8V–16.6V supply, 500kHz frequency, -25°C to 125°C operating range) not detailed for the original die component.

Q: Can I use the IRS25411STRPBF as a direct replacement in existing designs? A: The IRS25411STRPBF requires PCB layout modifications due to its 8-SOIC surface mount package, differing from the original die-level implementation. Design integration must account for the specified electrical parameters and operating conditions.

Q: What is the moisture sensitivity level (MSL) difference, and does it matter? A: The IRS21541CD carries MSL 1 (unlimited shelf life), while the IRS25411STRPBF carries MSL 2 (1-year shelf life). Manufacturing and storage processes must implement appropriate moisture control for the substitute component to maintain reliability.

Q: Are both parts compliant with international regulations? A: Yes. Both components maintain REACH Unaffected status and identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications, confirming regulatory equivalence for international applications.

Q: What supply voltage range does the IRS25411STRPBF support? A: The IRS25411STRPBF operates with a supply voltage range of 8V minimum to 16.6V maximum, with a switching frequency of 500kHz and operating temperature range of -25°C to 125°C (junction temperature).