IR2520DPBF Equivalent & Substitute Parts

Part Overview

The IR2520DPBF is a ballast controller IC manufactured by Infineon Technologies, designed for fluorescent lamp ballast applications. Operating across a frequency range of 34kHz to 86kHz, this through-hole component has been classified as obsolete. Due to its discontinued status, identifying functionally compatible substitute components is essential for system redesign, legacy product support, and procurement continuity.

Substiute Parts

IR2520DPBF

Infineon TechnologiesIn Stock: 18035IR2520DPBF Datasheet

Current PartRFQ

FAN7711N

onsemiIn Stock: 47644FAN7711N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IR2520DPBF is determined by the following critical parameters:

• Package Compatibility: Both main and substitute parts must use 8-DIP (0.300", 7.62mm) through-hole packaging to ensure direct PCB footprint compatibility
• Functional Classification: Both components must be ballast controller ICs with no dimming capability
• Operating Temperature Range: Substitute parts must support the full -25°C to 125°C operating window
• Supply Voltage Overlap: The substitute part's supply voltage range must overlap with the main part's 11.4V ~ 15.4V specification
• Frequency Range Compatibility: While frequency ranges may differ, the substitute must operate within ballast controller specifications
• Regulatory Compliance: Both parts must maintain ROHS3 compliance and REACH unaffected status

The FAN7711N from onsemi meets these substitution criteria through identical package geometry, matching functional classification, compatible operating temperature range, overlapping supply voltage specifications, and equivalent regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The FAN7711N serves as a direct substitute for the IR2520DPBF based on the following engineering criteria:

Package and Mechanical Compatibility: Both components utilize identical 8-DIP (0.300", 7.62mm) through-hole packaging, enabling direct PCB footprint replacement without layout modifications.

Functional Equivalence: Both are ballast controller ICs with matching operational classifications and identical dimming capability specifications (No).

Thermal and Environmental Compliance: Both components support the full -25°C to 125°C operating temperature range and maintain equivalent ROHS3 and REACH compliance certifications.

Supply Voltage Compatibility: The FAN7711N supply voltage range (12.4V ~ 15.2V) overlaps substantially with the IR2520DPBF specification (11.4V ~ 15.4V), ensuring compatibility within standard ballast power supply designs.

Regulatory Status: Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying environmental and regulatory requirements for equivalent component selection.

Frequently Asked Questions (FAQ)

Q: Can the FAN7711N be used as a direct replacement for the IR2520DPBF on existing PCBs?

A: Yes. Both components share identical 8-DIP (0.300", 7.62mm) through-hole packaging, enabling direct pin-for-pin substitution without PCB modifications.

Q: What are the key differences between these two ballast controller ICs?

A: The primary differences are frequency range and supply current specifications. The IR2520DPBF operates across 34kHz ~ 86kHz with 10 mA supply current, while the FAN7711N operates across 48.7kHz ~ 57.3kHz with 3.2 mA supply current. Both maintain identical operating temperature ranges and package specifications.

Q: Are there supply voltage compatibility concerns when substituting the FAN7711N?

A: The FAN7711N supply voltage range (12.4V ~ 15.2V) overlaps with the IR2520DPBF range (11.4V ~ 15.4V). Applications operating within the overlapping 12.4V ~ 15.2V window experience full compatibility. Applications requiring operation below 12.4V may require circuit evaluation.

Q: Do both components meet the same regulatory compliance standards?

A: Yes. Both the IR2520DPBF and FAN7711N are ROHS3 compliant and REACH unaffected, meeting equivalent environmental and regulatory requirements.

Q: What is the moisture sensitivity level difference between these components?

A: The IR2520DPBF has MSL 1 (Unlimited), while the FAN7711N is listed as Not Applicable. Both classifications indicate minimal moisture sensitivity concerns for standard handling and storage procedures.

Q: Are there frequency range implications for ballast circuit design?

A: The FAN7711N operates within a narrower frequency range (48.7kHz ~ 57.3kHz) compared to the IR2520DPBF (34kHz ~ 86kHz). Circuit designs must confirm that the FAN7711N frequency specification aligns with the intended ballast operating frequency.