LNK413EG LED Driver IC Equivalent & Substitute Parts

Part Overview

The LNK413EG is an AC DC offline switcher LED driver IC manufactured by Power Integrations, operating in the LinkSwitch®-PH series. This device functions as a single-output flyback topology controller with integrated internal switching capability, designed for lighting applications requiring PWM dimming control. The part is currently in active product status with 17,400 units in stock.

Substitute parts are necessary when the LNK413EG becomes unavailable, when alternative packaging formats are required for specific manufacturing processes, or when design requirements necessitate different supply voltage ranges or dimming methodologies while maintaining core AC DC offline switching functionality for LED driver applications.

Substiute Parts

LNK413EG

Power IntegrationsIn Stock: 17417LNK413EG Datasheet

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HVLED805TR

STMicroelectronicsIn Stock: 27811HVLED805TR Datasheet

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LT3799IMSE-1#PBF

Analog Devices Inc.In Stock: 1127LT3799IMSE-1#PBF Datasheet

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MP4031GS-Z

Monolithic Power SystemsIn Stock: 20248MP4031GS-Z Datasheet

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TPS92411DDA

Texas InstrumentsIn Stock: 1805TPS92411DDA Datasheet

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UCC28811D

Texas InstrumentsIn Stock: 3480UCC28811D Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LNK413EG is determined by the following core parameters:

Primary Substitution Criteria:

• Device Type: AC DC Offline Switcher
• Topology: Flyback
• Number of Outputs: 1
• Applications: Lighting
• Dimming Capability: PWM or compatible dimming method

Secondary Compatibility Factors:

• Operating Temperature Range: Minimum -40°C, suitable for -40°C ~ 150°C or -40°C ~ 125°C applications
• Supply Voltage Range: Must accommodate LED driver input requirements
• Internal Switch Configuration: Presence or absence of internal switching affects circuit design requirements
• RoHS Compliance: All substitute parts maintain RoHS3 or RoHS Compliant status
• Product Status: All candidates are Active

The substitute parts listed below meet the primary substitution criteria as AC DC offline switcher flyback topologies with single outputs for lighting applications. Variations in packaging format (through-hole versus surface mount), supply voltage ranges, dimming methodologies (PWM versus TRIAC), and internal switch presence represent design trade-offs that must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain Active product status and comply with RoHS regulations (RoHS Compliant or ROHS3 Compliant), ensuring regulatory compliance and long-term availability for production designs.

HVLED805TR (STMicroelectronics): This substitute shares PWM dimming capability and internal switching with the LNK413EG. However, the supply voltage range (11.5V to 23V) is significantly lower than the LNK413EG (36V to 725V), restricting its application to lower input voltage designs. The transition from through-hole to surface-mount packaging requires PCB redesign. MSL rating of 3 requires controlled storage conditions.

LT3799IMSE-1#PBF (Analog Devices Inc.): This device operates as an AC DC offline switcher flyback topology without internal switching, requiring external switch implementation. Dimming is TRIAC-based rather than PWM. The frequency range (25kHz to 300kHz) provides flexibility compared to the fixed 66kHz of the LNK413EG. MSL rating of 1 and surface-mount packaging (16-TFSOP) represent different manufacturing requirements.

MP4031GS-Z (Monolithic Power Systems): This substitute supports both analog and TRIAC dimming methods, offering flexibility beyond the LNK413EG's PWM-only capability. Supply voltage range (11V to 27V) is lower than the main part. No internal switching requires external circuit design. Operating temperature maximum of 125°C is lower than the LNK413EG's 150°C. Surface-mount 8-SOIC packaging and MSL rating of 2 differ from the main part.

TPS92411DDA (Texas Instruments): This device includes internal switching and supports multiple topologies (Flyback, Buck, Boost), providing design flexibility. Supply voltage range (7.5V to 100V) accommodates broader input specifications. Operating temperature range matches the LNK413EG (-40°C to 150°C). Surface-mount 8-PowerSOIC packaging and MSL rating of 2 require manufacturing process adaptation.

UCC28811D (Texas Instruments): This substitute operates without internal switching and uses TRIAC dimming. Multiple topology support (Flyback, Buck, Boost) enables diverse circuit designs. Supply voltage maximum of 18V is significantly lower than the LNK413EG. Operating temperature maximum of 105°C (TA) is the lowest among all candidates. Surface-mount 8-SOIC packaging and MSL rating of 1 represent standard manufacturing conditions.

Frequently Asked Questions (FAQ)

Q: Can HVLED805TR directly replace LNK413EG in existing designs?

A: Direct replacement is not recommended. While both are AC DC offline switcher flyback topologies with PWM dimming and internal switching, the HVLED805TR supply voltage range (11.5V to 23V) cannot accommodate the LNK413EG's 36V to 725V input specification. Additionally, the transition from through-hole (eSIP-7C) to surface-mount (16-SOIC) packaging requires PCB redesign and assembly process changes.

Q: What is the primary difference between PWM and TRIAC dimming in these substitutes?

A: The LNK413EG uses PWM (Pulse Width Modulation) dimming, which controls LED brightness by varying the duty cycle of the switching signal. Substitute parts LT3799IMSE-1#PBF, MP4031GS-Z, and UCC28811D use TRIAC dimming, which controls brightness through phase-angle modulation of the AC input. These represent different dimming methodologies and require different circuit implementations and control strategies.

Q: Why do some substitutes lack internal switching capability?

A: LT3799IMSE-1#PBF, MP4031GS-Z, and UCC28811D are designed as controller ICs rather than integrated switchers. They require external MOSFETs or other switching devices to implement the power conversion function. This approach provides design flexibility and allows optimization for specific power levels and efficiency requirements, but requires additional component count and circuit complexity compared to the LNK413EG's integrated switching solution.

Q: How does operating temperature range affect substitute selection?

A: The LNK413EG operates from -40°C to 150°C (junction temperature). Substitutes LT3799IMSE-1#PBF and MP4031GS-Z are rated to 125°C, while UCC28811D is rated to 105°C (ambient temperature). For applications requiring the full -40°C to 150°C range, only HVLED805TR and TPS92411DDA maintain equivalent thermal specifications. Lower temperature ratings may restrict use in high-temperature environments or require thermal management design modifications.

Q: What packaging considerations apply when selecting substitutes?

A: The LNK413EG uses through-hole eSIP-7C packaging, suitable for wave soldering and through-hole assembly processes. All substitutes use surface-mount packages (16-SOIC, 16-TFSOP, 8-SOIC, or 8-PowerSOIC), requiring reflow soldering and SMT assembly equipment. This necessitates PCB layout redesign, assembly process changes, and potentially different handling and storage procedures based on MSL ratings.

Q: Which substitute offers the broadest supply voltage range?

A: TPS92411DDA provides the widest supply voltage range at 7.5V to 100V, compared to the LNK413EG's 36V to 725V. While TPS92411DDA cannot reach the LNK413EG's maximum voltage, it accommodates lower input voltages and provides greater flexibility for designs operating across diverse input specifications. However, designs requiring the full 36V to 725V range must use the LNK413EG or HVLED805TR.

Q: Are all substitutes RoHS compliant?

A: Yes. The LNK413EG is RoHS Compliant, and all substitute parts are either RoHS Compliant or ROHS3 Compliant, ensuring regulatory compliance with European Union Restriction of Hazardous Substances directives. All parts also maintain REACH Unaffected status.

Q: What does MSL (Moisture Sensitivity Level) mean for component handling?

A: MSL indicates the maximum time a component can be exposed to ambient conditions (typically 30°C, 85% relative humidity) before requiring baking to remove absorbed moisture. LNK413EG, LT3799IMSE-1#PBF, and UCC28811D have MSL 1 (Unlimited), requiring no special moisture control. HVLED805TR has MSL 3 (168 hours), requiring baking if storage exceeds 168 hours. MP4031GS-Z and TPS92411DDA have MSL 2 (1 Year), allowing extended storage without baking.