LC5565LD Equivalent & Substitute Parts

Part Overview

The LC5565LD is an LED driver IC manufactured by Sanken Electric USA Inc., designed as a 1-output AC DC offline switcher with internal switching capability. This 8-DIP through-hole component operates across a supply voltage range up to 20V and is rated for -55°C to 125°C operating temperature. The product is currently obsolete, making equivalent and substitute parts necessary for ongoing design support, maintenance, and production continuity.

Substiute Parts

LC5565LD

Sanken Electric USA Inc.In Stock: 853LC5565LD Datasheet

Current PartRFQ

AL1697-20CS7-13

Diodes IncorporatedIn Stock: 60403AL1697-20CS7-13 Datasheet

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BD555A1AFV-E2

ROHM SemiconductorIn Stock: 1028BD555A1AFV-E2 Datasheet

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LNK418EG

Power IntegrationsIn Stock: 16254LNK418EG Datasheet

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LYT1403D-TL

Power IntegrationsIn Stock: 1018LYT1403D-TL Datasheet

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LYT2004E

Power IntegrationsIn Stock: 1959LYT2004E Datasheet

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NCL30001DR2G

onsemiIn Stock: 3824NCL30001DR2G Datasheet

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TPS92315DBVT

Texas InstrumentsIn Stock: 1646TPS92315DBVT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the LC5565LD is determined by the following critical parameters:

• Functional Type: AC DC offline switcher topology with LED driver capability
• Output Configuration: Single output design
• Internal Switching: Presence of integrated switching element
• Supply Voltage Compatibility: Maximum supply voltage rating of 20V or higher
• Operating Temperature Range: Support for -55°C to 125°C or overlapping range
• Package Compatibility: Through-hole or surface-mount alternatives acceptable based on application requirements
• Compliance: RoHS compliance status

The substitute parts listed below meet these core functional requirements while offering active product status and improved availability compared to the obsolete LC5565LD.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Active Status, High Availability)

AL1697-20CS7-13 (Diodes Incorporated) and LNK418EG (Power Integrations) are recommended as primary substitutes. Both are active products with substantial inventory availability (60,300 and 16,244 units respectively). AL1697-20CS7-13 operates within a tighter supply voltage range (8.5V to 18V) suitable for low-voltage applications, while LNK418EG supports extended voltage ranges (36V to 725V) for higher-voltage designs. Both maintain RoHS compliance and support dimming functionality.

Secondary Substitutes (Active Status, Specialized Topologies)

LYT1403D-TL and LYT2004E (both Power Integrations LYTSwitch series) offer active product status with specialized topologies. LYT1403D-TL operates directly from AC mains (90VAC to 308VAC) with integrated buck topology, while LYT2004E provides isolated flyback conversion at 10W power rating. Both support extended operating temperatures to 150°C (TJ).

Alternative Substitute (Active Status, Compact Package)

TPS92315DBVT (Texas Instruments) provides a compact SOT-23-6 surface-mount alternative with active product status and ROHS3 compliance. This option is suitable for space-constrained applications requiring flyback topology with 130kHz switching frequency.

Compliance Considerations

All recommended substitutes maintain RoHS compliance (RoHS or ROHS3 status). Moisture sensitivity levels are uniformly rated at MSL 1 (Unlimited) across all alternatives, matching the original LC5565LD specification. REACH compliance status is unaffected for all substitute parts.

Frequently Asked Questions (FAQ)

Q: Can AL1697-20CS7-13 directly replace LC5565LD in existing designs?

A: AL1697-20CS7-13 is functionally equivalent as a 1-output AC DC offline switcher with internal switching. However, it uses surface-mount 7-SO packaging versus the through-hole 8-DIP of LC5565LD. PCB layout modification is required. Supply voltage range differs (8.5V–18V versus up to 20V), requiring verification against your application's input voltage specifications.

Q: What is the key difference between LNK418EG and LYT2004E?

A: Both are Power Integrations products with active status and extended temperature ratings. LNK418EG uses PWM dimming with 66kHz switching frequency and supports 36V–725V supply range. LYT2004E uses flyback topology with 85kHz switching frequency and 55% duty cycle, rated for 10W power output. Selection depends on your dimming control method and power requirements.

Q: Are all substitutes RoHS compliant?

A: Yes. All substitute parts listed maintain RoHS compliance (either RoHS or ROHS3 status), matching the original LC5565LD RoHS Compliant designation. REACH compliance status is unaffected across all alternatives.

Q: Which substitute best matches the through-hole mounting of LC5565LD?

A: LNK418EG and LYT2004E both use through-hole mounting (7-SSIP package with formed leads), directly compatible with existing PCB designs without layout modification. AL1697-20CS7-13, LYT1403D-TL, and TPS92315DBVT require surface-mount PCB redesign.

Q: What operating temperature range should I verify for my application?

A: LC5565LD operates -55°C to 125°C (TA). Substitute parts vary: AL1697-20CS7-13 (-40°C to 105°C TA), LNK418EG and LYT2004E (-40°C to 150°C TJ), LYT1403D-TL (-40°C to 125°C TJ), and TPS92315DBVT (-20°C to 125°C TJ). Verify your application's temperature requirements against each substitute's rated range.

Q: Can I use TPS92315DBVT as a drop-in replacement?

A: TPS92315DBVT is functionally equivalent but requires design changes. It lacks internal switching (No versus Yes in LC5565LD), uses surface-mount SOT-23-6 packaging, and operates at 130kHz switching frequency. Circuit topology redesign is necessary; this is not a drop-in replacement.