LNK416LG Equivalent & Substitute Parts

Part Overview

The LNK416LG is an AC DC offline switcher LED driver IC manufactured by Power Integrations, designed for lighting applications requiring PWM dimming control. This device integrates an internal switch and operates across a wide input voltage range of 36V to 725V, delivering 1.5A output current in a compact eSIP-7F package. The part is currently in active production status with 1650 units in stock.

Substitute parts are identified when equivalent functional performance can be achieved within the constraints of the AC DC offline switcher topology, flyback converter design, and PWM dimming capability. Substitution becomes necessary due to component availability, packaging preferences, supply chain requirements, or design revision needs.

Key Parameters

Parameter	LNK416LG Value	Significance for Substitution
Manufacturer	Power Integrations	Defines design architecture and pin configuration
Type	AC DC Offline Switcher	Core functional requirement; all substitutes must match
Topology	Flyback	Converter architecture; all substitutes must match
Internal Switch(s)	Yes	Determines integration level and external component requirements
Number of Outputs	1	Output channel configuration; all substitutes must match
Voltage - Supply (Min)	36V	Minimum operating input voltage
Voltage - Supply (Max)	725V	Maximum operating input voltage
Current - Output / Channel	1.5A	Output current capability
Frequency	66kHz	Switching frequency for EMI and component sizing
Dimming	PWM	Dimming control method; all substitutes must match
Operating Temperature	-40°C ~ 150°C (TJ)	Thermal operating range
Mounting Type	Through Hole	PCB assembly method
Package / Case	7-SSIP, 6 Leads, Exposed Pad, Formed Leads	Physical footprint and pin configuration
RoHS Status	RoHS Compliant	Environmental compliance requirement
Product Status	Active	Ongoing availability and support

Substitute Part Grouping Explanation

Substitute parts for the LNK416LG are identified based on strict adherence to the following core parameters:

Mandatory Matching Parameters:

Type: AC DC Offline Switcher
Topology: Flyback
Number of Outputs: 1
Dimming: PWM

Voltage Range Compatibility: The LNK416LG operates from 36V to 725V input. Substitute parts must either match this range or operate within a subset of this range. Parts with lower voltage ratings (such as 11V to 27V) represent functional alternatives for applications operating within reduced input voltage windows.

Current Output Capability: The 1.5A output current rating is a key differentiator. Substitutes with 1A or unspecified current ratings may be suitable depending on application requirements.

Switching Frequency: The 66kHz switching frequency is specified for the main part. Substitute parts with unspecified or different frequencies may still function in equivalent applications due to the flexibility of flyback topology design.

Package and Mounting: The LNK416LG uses through-hole eSIP-7F packaging. Surface-mount alternatives (SOIC, TSOT-23) represent different assembly methods and require PCB redesign.

Temperature Range: The LNK416LG operates to 150°C junction temperature. Substitutes with 125°C maximum ratings have reduced thermal headroom.

Internal Switch Integration: The LNK416LG includes an internal switch. Substitutes without internal switches require external switching components, affecting circuit complexity and board space.

Parameter Comparison

Parameter	LNK416LG	HVLED805TR	MP4027GJ-Z	MP4030GS	MP4031GS-Z	MP4032-1GS-Z	NCL30082BDR2G
Manufacturer	Power Integrations	STMicroelectronics	Monolithic Power Systems Inc.	Monolithic Power Systems Inc.	Monolithic Power Systems	Monolithic Power Systems	onsemi
Type	AC DC Offline Switcher	AC DC Offline Switcher	AC DC Offline Switcher	AC DC Offline Switcher	AC DC Offline Switcher	AC DC Offline Switcher	AC DC Offline Switcher
Topology	Flyback	Flyback	Flyback	Flyback	Flyback	Flyback	Flyback
Internal Switch(s)	Yes	Yes	No	No	No	Yes	No
Number of Outputs	1	1	1	1	1	1	1
Voltage - Supply (Min)	36V	11.5V	12V	11V	11V	10.3V	8.8V
Voltage - Supply (Max)	725V	23V	28V	27V	27V	27V	20V
Current - Output / Channel	1.5A	—	—	—	—	1A	—
Frequency	66kHz	—	—	—	—	—	—
Dimming	PWM	PWM	PWM	Triac	Analog, TRIAC	Triac	Analog, PWM
Operating Temperature (Max)	150°C (TJ)	150°C (TJ)	125°C (TJ)	125°C (TJ)	125°C (TJ)	125°C (TJ)	125°C (TA)
Mounting Type	Through Hole	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	7-SSIP, 6 Leads, Exposed Pad	16-SOIC (0.154", 3.90mm Width)	SOT-23-8 Thin, TSOT-23-8	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width), 7 Leads	8-SOIC (0.154", 3.90mm Width)
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active	Active	Last Time Buy

Engineering Selection Recommendations

HVLED805TR (STMicroelectronics)

HVLED805TR shares the AC DC offline switcher flyback topology with PWM dimming capability and internal switch integration. Operating temperature range matches the LNK416LG at 150°C junction temperature. However, the input voltage range (11.5V to 23V) is significantly narrower than the LNK416LG (36V to 725V), restricting this substitute to low-voltage applications. HVLED805TR uses 16-SOIC surface-mount packaging, requiring PCB redesign from the through-hole eSIP-7F footprint. RoHS3 compliance and active product status support long-term availability. This substitute is suitable for applications operating within the 11.5V to 23V input window where surface-mount assembly is acceptable.

MP4027GJ-Z (Monolithic Power Systems Inc.)

MP4027GJ-Z is an AC DC offline switcher with flyback topology and PWM dimming. The device lacks an internal switch, requiring external switching components compared to the LNK416LG. Input voltage range (12V to 28V) is narrower than the main part. Operating temperature is limited to 125°C, reducing thermal margin. TSOT-23-8 surface-mount packaging requires PCB redesign. RoHS3 compliance and active status are maintained. This substitute applies to low-voltage PWM dimming applications where external switch integration is acceptable.

MP4030GS (Monolithic Power Systems Inc.)

MP4030GS provides AC DC offline switcher flyback topology but uses TRIAC dimming instead of PWM. Input voltage range (11V to 27V) is narrower than the LNK416LG. No internal switch is integrated. Operating temperature maximum is 125°C. 8-SOIC surface-mount packaging requires redesign. RoHS3 compliance and active status are confirmed. This substitute is applicable only to applications requiring TRIAC dimming control within the reduced voltage range.

MP4031GS-Z (Monolithic Power Systems)

MP4031GS-Z is an AC DC offline switcher flyback device supporting both analog and TRIAC dimming. No internal switch is present. Input voltage range (11V to 27V) is narrower than the LNK416LG. Operating temperature is limited to 125°C. 8-SOIC surface-mount packaging requires PCB redesign. RoHS3 compliance and active status are maintained. This substitute is limited to applications requiring analog or TRIAC dimming within the reduced voltage window.

MP4032-1GS-Z (Monolithic Power Systems)

MP4032-1GS-Z is an AC DC offline switcher flyback device with internal switch integration and 1A output current rating. TRIAC dimming is supported instead of PWM. Input voltage range (10.3V to 27V) is narrower than the LNK416LG. Operating temperature is limited to 125°C. 8-SOIC surface-mount packaging requires redesign. RoHS3 compliance and active status are confirmed. This substitute applies to low-voltage TRIAC dimming applications where 1A output current is sufficient and surface-mount assembly is feasible.

NCL30082BDR2G (onsemi)

NCL30082BDR2G is an AC DC offline switcher flyback device supporting analog and PWM dimming. No internal switch is integrated. Input voltage range (8.8V to 20V) is the narrowest among all substitutes. Operating temperature is limited to 125°C. 8-SOIC surface-mount packaging requires PCB redesign. Product status is Last Time Buy, indicating discontinued production with limited future availability. RoHS3 compliance is maintained. This substitute is not recommended for new designs due to Last Time Buy status, but may be considered for existing inventory management or legacy system support within the 8.8V to 20V input range.

Frequently Asked Questions (FAQ)

Q1: Can HVLED805TR directly replace LNK416LG in a high-voltage application?

No. HVLED805TR operates from 11.5V to 23V input, while LNK416LG operates from 36V to 725V. HVLED805TR is restricted to low-voltage applications and cannot function in circuits designed for the LNK416LG's wide input voltage range.

Q2: What is the primary difference between LNK416LG and MP4027GJ-Z?

The LNK416LG integrates an internal switch, while MP4027GJ-Z does not. This means MP4027GJ-Z requires an external switching element, increasing circuit complexity and component count. Additionally, MP4027GJ-Z operates at lower input voltages (12V to 28V) and has a reduced temperature rating (125°C vs. 150°C).

Q3: Why is NCL30082BDR2G marked as Last Time Buy?

NCL30082BDR2G is in Last Time Buy status, indicating onsemi has discontinued this product line. New designs should not use this part. Existing inventory may be available for legacy system support, but long-term supply cannot be guaranteed.

Q4: Can I use MP4030GS as a direct PWM dimming replacement?

No. MP4030GS uses TRIAC dimming, not PWM dimming. While both are dimming methods, they operate on different control principles. TRIAC dimming is incompatible with PWM dimming circuits. Additionally, MP4030GS lacks an internal switch and operates at lower input voltages.

Q5: What packaging changes occur when substituting from LNK416LG to surface-mount alternatives?

LNK416LG uses through-hole eSIP-7F packaging with formed leads for insertion into PCB holes. All substitute parts listed use surface-mount packages (SOIC, TSOT-23), requiring PCB redesign with surface-mount pads, reflow soldering processes, and different assembly equipment.

Q6: Is the 1A output current of MP4032-1GS-Z sufficient to replace the 1.5A LNK416LG?

MP4032-1GS-Z provides 1A output current versus LNK416LG's 1.5A. This represents a 33% reduction in current capability. Substitution is only valid if the application's LED load current requirement does not exceed 1A. Applications requiring 1.5A output current cannot use MP4032-1GS-Z.

Q7: Why do most substitutes have lower maximum operating temperatures?

Most substitute parts are rated to 125°C junction temperature, while LNK416LG is rated to 150°C. This reflects different design margins and thermal management approaches by each manufacturer. Applications operating near thermal limits may require additional thermal management when using 125°C-rated substitutes.

Q8: Can I use a substitute part with a narrower input voltage range in a wide-input application?

No. If your application requires operation across the full 36V to 725V range, you must use a substitute with equivalent or wider voltage specifications. Using a part rated only to 27V maximum in a 725V circuit will result in component failure.

Q9: What is the significance of RoHS3 compliance on substitute parts?

All listed substitute parts carry RoHS3 compliance, matching the LNK416LG's RoHS compliance status. This ensures environmental and regulatory compatibility for applications requiring RoHS-compliant components. No compliance gaps exist among the listed substitutes.

Q10: How does the absence of an internal switch affect circuit design?

Parts without internal switches (HVLED805TR, MP4027GJ-Z, MP4030GS, MP4031GS-Z, NCL30082BDR2G) require external MOSFETs or other switching elements to complete the flyback converter topology. This increases component count, PCB area, and design complexity compared to integrated-switch solutions like LNK416LG and MP4032-1GS-Z.

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