LNK460VG LED Driver IC Equivalent & Substitute Parts

Part Overview

The LNK460VG is an AC DC offline switcher LED driver IC manufactured by Power Integrations, designed for TRIAC dimming applications with 1A output capability. This device operates in the LinkSwitch®-PL series and is classified as obsolete product status. Due to its obsolete classification, identifying functionally equivalent substitute parts is essential for design continuity, production planning, and long-term component sourcing strategy. Substitute parts must maintain compatibility with AC DC offline switching topology, TRIAC dimming control, and similar electrical operating parameters.

Key Parameters

Parameter	LNK460VG Value	Unit	Substitution Relevance
Product Category	Power Management (PMIC)	-	Critical
Device Type	AC DC Offline Switcher	-	Critical
Number of Outputs	1	-	Critical
Dimming Method	TRIAC	-	Critical
Current Output / Channel	1A	A	Critical
Supply Voltage Maximum	50V	V	Important
Frequency	122kHz	kHz	Important
Operating Temperature Range	-40°C to 150°C (TJ)	°C	Important
Mounting Type	Through Hole	-	Important
Package Type	12-SDIP (eDIP-12)	-	Important
Internal Switch	Yes	-	Important
RoHS Status	RoHS Compliant	-	Compliance

Substitute Part Grouping Explanation

Substitute parts for the LNK460VG are evaluated based on the following critical parameters:

Primary Substitution Criteria (Must Match):

Device Type: AC DC Offline Switcher
Dimming Method: TRIAC dimming capability
Number of Outputs: Single output configuration
Internal Switch Requirement: Presence of integrated switching element

Secondary Compatibility Parameters (Should Align):

Current Output Capability: Minimum 1A or higher
Supply Voltage Range: Support for offline AC DC operation (typically 8V to 550V range)
Operating Temperature: Support for -40°C minimum and preferably 125°C or higher
RoHS Compliance: ROHS3 or equivalent compliance status

Acceptable Variations:

Mounting Type: Surface Mount substitutes acceptable for Through Hole original (design integration required)
Package Type: Different package formats permitted if electrical specifications align
Frequency: Operating frequency variation acceptable within typical LED driver range (20kHz to 1MHz)
Topology: Step-Down (Buck), Step-Up (Boost), or Flyback topologies acceptable if TRIAC dimming maintained

The substitute parts listed below meet the core functional requirements of AC DC offline switching with TRIAC dimming control, enabling direct or design-adapted replacement scenarios.

Parameter Comparison

Parameter	LNK460VG	LM3447MTX/NOPB	CPC9909NETR	LM3445MMX/NOPB	TPS92410D	MP4032-2GS-Z	HV9922N8-G	AL9902FDF-13	MP4068GS	NCL30001DR2G
Manufacturer	Power Integrations	Texas Instruments	IXYS Integrated Circuits	Texas Instruments	Texas Instruments	Monolithic Power Systems	Microchip Technology	Diodes Incorporated	Monolithic Power Systems	onsemi
Device 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	AC DC Offline Switcher	AC DC Offline Switcher	AC DC Offline Switcher
Dimming Method	TRIAC	TRIAC	PWM	TRIAC	Analog, TRIAC	TRIAC	TRIAC	Analog, PWM	TRIAC	-
Number of Outputs	1	1	1	1	1	1	1	1	1	1
Topology	-	Flyback	Step-Down (Buck), Step-Up (Boost)	Step-Down (Buck)	-	Step-Down (Buck), Step-Up (Boost)	Step-Down (Buck)	Step-Down (Buck), Step-Up (Boost)	Step-Down (Buck), Step-Up (Boost)	Flyback, Step-Down (Buck)
Internal Switch	Yes	No	No	No	No	Yes	Yes	Yes	No	No
Supply Voltage Min (V)	-	7.5	8	8	9.5	10.3	20	20	4.1	-
Supply Voltage Max (V)	50	17.5	550	12	450	27	400	500	5	-
Current Output / Channel (mA)	1000	-	-	-	-	-	50	400	160	-
Frequency (kHz)	122	-	30-120	30-1000	-	-	-	300	22	20-250
Operating Temperature Min (°C)	-40	-40	-40	-40	-40	-40	-40	-40	-	-40
Operating Temperature Max (°C)	150	125	85	125	125	125	85	105	-	125
Mounting Type	Through Hole	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	12-SDIP (eDIP-12)	14-TSSOP	8-SOIC-EP	10-VSSOP	13-SOIC	8-SOIC-7A	SOT-89-3	U-DFN6040-12	8-SOIC-7A	16-SOIC
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

The following parts demonstrate the strongest functional alignment with LNK460VG specifications:

LM3447MTX/NOPB (Texas Instruments): Active product status with TRIAC dimming, Flyback topology, single output configuration. Operating temperature range -40°C to 125°C supports thermal requirements. 14-TSSOP surface mount package requires PCB redesign from original through-hole configuration. Supply voltage range 7.5V to 17.5V is narrower than original but suitable for offline AC DC applications. No internal switch; external switching element required.

MP4032-2GS-Z (Monolithic Power Systems Inc.): Active product with integrated internal switch, TRIAC dimming, and Step-Down/Step-Up topology flexibility. Operating temperature -40°C to 125°C. Supply voltage 10.3V to 27V. 8-SOIC-7A surface mount package. Inventory availability 35,400 units supports production continuity.

TPS92410D (Texas Instruments): Active product supporting both Analog and TRIAC dimming modes. Supply voltage range 9.5V to 450V accommodates offline AC DC operation. Operating temperature -40°C to 125°C. 13-SOIC surface mount package. No internal switch; external switching element required.

Secondary Substitutes (Conditional Compatibility):

CPC9909NETR (IXYS Integrated Circuits Division): Active product with PWM dimming (not TRIAC). Step-Down/Step-Up topology. Supply voltage 8V to 550V supports wide offline range. 8-SOIC-EP surface mount. No internal switch. Dimming method differs from original TRIAC specification; application compatibility requires verification.

LM3445MMX/NOPB (Texas Instruments): Active product with TRIAC dimming and Step-Down topology. Supply voltage 8V to 12V is significantly narrower than original 50V maximum. Operating temperature -40°C to 125°C. 10-VSSOP surface mount package. Suitable for low-voltage offline applications only.

HV9922N8-G (Microchip Technology): Active product with TRIAC dimming, Step-Down topology, integrated internal switch. Supply voltage 20V to 400V. Current output 50mA (significantly lower than 1A original). Operating temperature -40°C to 85°C. SOT-89-3 surface mount. Suitable for lower-power lighting applications.

AL9902FDF-13 (Diodes Incorporated): Active product with Analog/PWM dimming (not TRIAC). Step-Down/Step-Up topology. Supply voltage 20V to 500V. Current output 400mA. Operating temperature -40°C to 105°C. U-DFN6040-12 surface mount. Dimming method differs; PWM control requires application compatibility assessment.

MP4068GS (Monolithic Power Systems): Active product with TRIAC dimming, Step-Down/Step-Up topology. Supply voltage 4.1V to 5V is extremely narrow range. Current output 160mA. 8-SOIC-7A surface mount. Suitable only for specialized low-voltage applications.

NCL30001DR2G (onsemi): Active product with Flyback/Step-Down topology. Supply voltage and current specifications not provided. Operating temperature -40°C to 125°C. Frequency range 20kHz to 250kHz. 16-SOIC surface mount. Dimming method not specified; compatibility requires detailed datasheet review.

Compliance and Certification Status:

All substitute parts listed maintain ROHS3 compliance or equivalent RoHS Compliant status, ensuring regulatory alignment with original LNK460VG. All parts carry EAR99 ECCN classification and REACH Unaffected status, matching original compliance profile. Moisture Sensitivity Level (MSL) ratings vary from 1 (Unlimited) to 3 (168 Hours); design considerations for storage and handling may differ from original MSL 1 specification.

Frequently Asked Questions (FAQ)

Q1: Can I directly replace LNK460VG with any of the listed substitute parts?

A: Direct replacement without PCB modification is not possible. The LNK460VG uses Through Hole 12-SDIP (eDIP-12) mounting, while all substitute parts use Surface Mount packages (SOIC, TSSOP, VSSOP, DFN, SOT-89). PCB redesign is required. Additionally, electrical specifications vary; verify supply voltage range, current output capability, and dimming method compatibility with your application before selection.

Q2: What is the primary reason for finding substitutes for LNK460VG?

A: The LNK460VG is classified as Obsolete product status. Obsolete classification indicates the manufacturer has discontinued production and support. Identifying active substitute parts ensures design continuity, maintains production capability, and secures long-term component availability for new designs or production restarts.

Q3: Which substitute part most closely matches the 1A output current specification of LNK460VG?

A: The LNK460VG specifies 1A (1000mA) output current. Among substitute parts, only LNK460VG itself and the listed substitutes provide comparable current ratings. Most substitute parts do not explicitly specify output current in the provided data. AL9902FDF-13 specifies 400mA, HV9922N8-G specifies 50mA, and MP4068GS specifies 160mA. For 1A-level applications, parts without specified current limits (LM3447MTX/NOPB, CPC9909NETR, LM3445MMX/NOPB, TPS92410D, MP4032-2GS-Z, NCL30001DR2G) require datasheet review to confirm current handling capability.

Q4: Are all substitute parts compatible with TRIAC dimming control?

A: No. TRIAC dimming compatibility varies among substitutes. Parts with confirmed TRIAC dimming support: LM3447MTX/NOPB, LM3445MMX/NOPB, TPS92410D (Analog + TRIAC), MP4032-2GS-Z, HV9922N8-G, and MP4068GS. Parts with different dimming methods: CPC9909NETR (PWM only), AL9902FDF-13 (Analog + PWM). NCL30001DR2G dimming method not specified. Application requiring TRIAC dimming must select from confirmed TRIAC-compatible parts.

Q5: What is the significance of "Internal Switch" specification in substitution?

A: Internal Switch indicates whether the IC includes integrated power switching capability. LNK460VG has Internal Switch = Yes. Substitutes with Internal Switch = Yes (MP4032-2GS-Z, HV9922N8-G, AL9902FDF-13) require fewer external components. Substitutes with Internal Switch = No (LM3447MTX/NOPB, CPC9909NETR, LM3445MMX/NOPB, TPS92410D, MP4068GS, NCL30001DR2G) require external switching elements, increasing circuit complexity and PCB area.

Q6: How do supply voltage ranges affect substitution suitability?

A: LNK460VG specifies maximum supply voltage of 50V. Substitutes with wider voltage ranges (CPC9909NETR 8V-550V, AL9902FDF-13 20V-500V, TPS92410D 9.5V-450V) provide greater design flexibility for offline AC DC applications. Substitutes with narrower ranges (LM3445MMX/NOPB 8V-12V, MP4068GS 4.1V-5V) are restricted to specific voltage domains. Application supply voltage must fall within substitute part voltage specification for safe operation.

Q7: What mounting type considerations apply when replacing Through Hole LNK460VG with Surface Mount substitutes?

A: Through Hole to Surface Mount conversion requires complete PCB redesign. Surface Mount packages (SOIC, TSSOP, VSSOP, DFN, SOT-89) use different footprints, pad layouts, and soldering processes compared to 12-SDIP Through Hole. Design changes include: PCB trace routing modifications, solder reflow process implementation (if not already in use), and potential thermal management adjustments. Mechanical assembly procedures differ significantly. Prototype validation is essential before production implementation.

Q8: Which substitute parts maintain the highest operating temperature capability?

A: LNK460VG operates to 150°C (TJ). Substitute parts with comparable or higher maximum operating temperature: LM3447MTX/NOPB (125°C), LM3445MMX/NOPB (125°C), TPS92410D (125°C), MP4032-2GS-Z (125°C), NCL30001DR2G (125°C). Parts with lower maximum temperature: CPC9909NETR (85°C), HV9922N8-G (85°C), AL9902FDF-13 (105°C). Applications requiring operation above 125°C have limited substitute options; detailed thermal analysis required.

Q9: How does product status (Active vs. Obsolete) influence substitution strategy?

A: All substitute parts listed carry Active product status, indicating ongoing manufacturer support, continued production, and long-term availability. LNK460VG Obsolete status means no new production, limited inventory, and potential discontinuation of technical support. Selecting Active substitute parts ensures: design support from manufacturer, availability for future production runs, and access to updated documentation. Obsolete parts should not be selected for new designs.

Q10: What compliance certifications should I verify when selecting a substitute?

A: All listed parts maintain ROHS3 Compliant or RoHS Compliant status, matching original LNK460VG compliance. All carry EAR99 ECCN classification and REACH Unaffected status. Moisture Sensitivity Level (MSL) varies: most parts are MSL 1 (Unlimited), while TPS92410D and MP4032-2GS-Z are MSL 2 (1 Year), and AL9902FDF-13 is MSL 3 (168 Hours). MSL rating affects component storage, handling, and shelf-life requirements. Verify MSL compatibility with your supply chain and manufacturing processes.

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