LYT2002D-TL Equivalent & Substitute Parts

Part Overview

The LYT2002D-TL is an offline switch flyback converter IC manufactured by Power Integrations, designed for isolated power management applications. This device operates as a complete offline flyback topology controller with integrated switching capability, rated for 6W output power at 85kHz switching frequency. The part is currently in active production status with full RoHS compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical and mechanical parameters align with the main device specifications, enabling direct or near-direct replacement in compatible circuit designs. The primary substitution candidate is identified based on matching package format, topology classification, and operational characteristics.

Substiute Parts

LYT2002D-TL

Power IntegrationsIn Stock: 720LYT2002D-TL Datasheet

Current PartRFQ

NCL30088DDR2G

onsemiIn Stock: 5107NCL30088DDR2G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LYT2002D-TL is determined by the following critical parameters:

Primary Matching Criteria:

• Package format: 8-SOIC (0.154", 3.90mm Width) surface mount configuration
• Topology classification: Flyback converter architecture
• Isolation requirement: Isolated output configuration
• Operating temperature range compatibility: Minimum -40°C lower bound

Secondary Alignment Factors:

• Regulatory compliance: RoHS and REACH status
• ECCN classification: EAR99 (same export control category)
• HTSUS code: 8542.39.0001 (identical tariff classification)
• Product status: Active manufacturing status

The NCL30088DDR2G from onsemi meets the package and topology criteria as a flyback-based offline switcher in 8-SOIC format. However, functional differences exist in application focus (LED driver vs. general offline switch), internal architecture (no integrated switch vs. integrated switch), and operating temperature range (125°C vs. 150°C maximum).

Parameter Comparison

Engineering Selection Recommendations

LYT2002D-TL Selection Criteria:

• Applications requiring integrated power switch functionality within the IC
• Designs operating at or near maximum junction temperatures (up to 150°C)
• High-reliability applications with stringent moisture sensitivity requirements (MSL 1)
• Offline flyback converters with 6W power budget at 85kHz switching frequency
• Designs requiring 725V breakdown voltage rating

NCL30088DDR2G Selection Criteria:

• LED driver and lighting-specific offline switcher applications
• Designs with lower thermal operating points (maximum 125°C ambient)
• Applications where external switching components are acceptable
• Designs with less stringent moisture sensitivity requirements (MSL 3 acceptable)
• AC-DC offline switcher topologies with 1-output configuration

Compliance Basis: Both parts maintain active product status with RoHS and REACH compliance. Both are classified under identical ECCN (EAR99) and HTSUS (8542.39.0001) codes, indicating equivalent regulatory treatment for export and tariff purposes.

Frequently Asked Questions (FAQ)

Q: Can NCL30088DDR2G directly replace LYT2002D-TL in all applications?

A: No. While both devices use 8-SOIC packaging and flyback topology, the NCL30088DDR2G lacks an integrated power switch (external switch required) and has a lower maximum operating temperature (125°C vs. 150°C). Circuit redesign is necessary for applications dependent on integrated switching or high-temperature operation.

Q: What is the primary package compatibility factor?

A: Both parts use identical 8-SOIC (0.154", 3.90mm Width) surface mount packages, enabling PCB footprint compatibility. However, pinout and functional pin assignments must be verified against respective datasheets before substitution.

Q: How do moisture sensitivity ratings affect substitution?

A: LYT2002D-TL carries MSL 1 (unlimited shelf life without desiccant), while NCL30088DDR2G carries MSL 3 (168-hour maximum exposure). Applications with extended storage or high-humidity environments may require additional moisture control measures when using the substitute part.

Q: Are both parts suitable for offline AC-DC converter designs?

A: LYT2002D-TL is designed as a general-purpose offline switch for flyback topologies. NCL30088DDR2G is specifically optimized for LED driver and lighting applications. Both support offline AC-DC conversion, but application-specific optimization differs.

Q: What regulatory compliance considerations apply to substitution?

A: Both parts are RoHS-compliant, REACH-unaffected, and classified as EAR99 for export control. No additional regulatory barriers exist for substitution from a compliance standpoint. However, end-product certification requirements may impose additional constraints.

Q: How do switching frequency specifications compare?

A: LYT2002D-TL operates at a fixed 85kHz switching frequency. NCL30088DDR2G frequency specifications are not provided in the available parameters. Frequency matching is critical for EMI performance and transformer design; verification against datasheets is required.

Q: Can these parts be used interchangeably in production?

A: No. Substitution requires circuit validation, thermal analysis, and functional testing. The architectural differences (integrated vs. external switch) and temperature rating differences necessitate design review before production implementation.