Power Integrations LinkSwitch-CV | Power Integrations
LinkSwitch-CV series from Power Integrations
Power Integrations LinkSwitch-CV Series Overview
Integrated constant-voltage offline converter with minimal external components.
The LinkSwitch-CV from Power Integrations is a Integrated constant-voltage offline converter with minimal external components. This series includes 8 variants, each tailored for specific application requirements while sharing a common architecture and design ecosystem.
Designed for offline power conversion, the LinkSwitch-CV integrates key power components to minimize external component count, reduce board space, and simplify the design process. these devices help engineers meet increasingly stringent energy-efficiency standards while reducing time to market.
Octatronics stocks LinkSwitch-CV variants in multiple package options. Request a quote for volume pricing, check real-time availability, or contact our engineering team for application support and alternative part recommendations.
Key Features
- Highest IntegrationPrimary, secondary, and feedback circuits integrated on a single IC, reducing external component count by up to 50%.
- Up to 6W Output PowerSupports output power up to Up to 6W with excellent load and line regulation.
- Comprehensive Protection SuiteIntegrated over-voltage, over-current, over-temperature, and short-circuit protection eliminates external protection circuitry.
- Ultra-Low No-Load PowerAdvanced burst-mode operation achieves <30mW no-load power consumption, meeting the strictest standby regulations.
- Simplified Design ProcessReference designs, PI Expert design software, and application notes accelerate time-to-production.
Target Applications
- Appliance controls
- Smart meters
- IoT sensors
- Low-power displays
Compare LinkSwitch-CV Variants
Side-by-side comparison of 6 product variants from Power Integrations
| Parameter | LNK626DG-TL | LNK625DG-TL | LNK623DG-TL | LNK626DG | LNK625DG | LNK623DG |
|---|---|---|---|---|---|---|
| Package / Case | 8-SOIC (0.154", 3.90mm Width), 7 Leads | 8-SOIC (0.154", 3.90mm Width), 7 Leads | 8-SOIC (0.154", 3.90mm Width), 7 Leads | SO-8C | SO-8C | SO-8C |
| Max Operating Temp | - | - | - | 150 °C | 150 °C | 150 °C |
| Min Operating Temp | - | - | - | -40 °C | -40 °C | -40 °C |
| Operating Temperature | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) |
| Breakdown Voltage | - | - | - | 725 V | 725 V | 725 V |
| Control Features | - | - | - | Frequency Jittering, Auto-Restart/Latching Fault Response, On/Off Control | Frequency Jittering, Auto-Restart/Latching Fault Response, On/Off Control | Frequency Jittering, Auto-Restart/Latching Fault Response, On/Off Control |
| Control Scheme | - | - | - | Primary-side | Primary-side | Primary-side |
| Current Pmpp | - | - | - | 520 uA | 480 uA | 440 uA |
| Duty Cycle | 54% | 54% | 54% | 54% | 54% | 54% |
| Duty Cycle Max | - | 54 % | 54 % | 54 % | 54 % | 54 % |
| Fault Protection | Current Limiting, Open Loop, Over Temperature, Short Circuit | Current Limiting, Open Loop, Over Temperature, Short Circuit | Current Limiting, Open Loop, Over Temperature, Short Circuit | Current Limiting, Open Loop, Over Temperature, Short Circuit | Current Limiting, Open Loop, Over Temperature, Short Circuit | Current Limiting, Open Loop, Over Temperature, Short Circuit |
| Input Supply Voltage Max | - | - | - | 265 VAC | 265 VAC | 265 VAC |
| Input Supply Voltage Min | - | - | - | 85 VAC | 85 VAC | 85 VAC |
| Internal Switch | - | - | - | Yes | Yes | Yes |
| Internal Switch S | Yes | Yes | Yes | Yes | Yes | Yes |
| Lifecycle Status | Active | Active | Active | Obsolete | Obsolete | Obsolete |
| Max Input Voltage | - | - | - | 265 V | 265 V | 265 V |
| Maximum Operating Temperature C | - | + 150 | + 150 | + 150 | + 150 | + 150 |
| Min Input Voltage | - | - | - | 85 V | 85 V | 85 V |
| Minimum Operating Temperature C | - | - 40 | - 40 | - 40 | - 40 | - 40 |
| Number of Outputs | - | 3 Output | 1 Output | 3 Output | 3 Output | 3 Output |
| Output Isolation | Isolated | Isolated | Isolated | Isolated | Isolated | Isolated |
| Output Power | - | 8 W | 6 W | 8.5 W | 8 W | 6 W |
| Output Power Max Enclosed 230v | - | - | - | 10.5 W | 8.0 W | 6.5 W |
| Output Power Max Enclosed Univ | - | - | - | 8.5 W | 6.5 W | 5.0 W |
| Output Power Max Open Frame 230v | - | - | - | 17.0 W | 13.5 W | 9.0 W |
| Output Power Max Open Frame Univ | - | - | - | 10.0 W | 8.0 W | 6.0 W |
| Output Profile | - | - | - | CV | CV | CV |
| Over Temperature Response | - | - | - | Hysteretic | Hysteretic | Hysteretic |
| Package | 8-SOIC | 8-SOIC | SO8C | SO-8C | SO-8C | SO-8C |
| Power Watts | 17 W | 13.5 W | 9 W | 17 W | 13.5 W | 9 W |
| Product Family | - | - | - | LinkSwitch-CV | LinkSwitch-CV | LinkSwitch-CV |
| Product Type | - | - | - | IC | IC | IC |
| Protection Features | - | - | - | Overtemperature, Output Short Circuit, Output Open Loop | Overtemperature, Output Short Circuit, Output Open Loop | Overtemperature, Output Short Circuit, Output Open Loop |
| Secondary Response | - | - | - | Auto-restart | Auto-restart | Auto-restart |
| Series | LNK6x | LNK6 | LNK6 | LNK6 | LNK6 | LNK6 |
| Supplier Device Package | SO-8C | SO-8C | SO-8C | SO-8C | SO-8C | SO-8C |
| Switching Frequency | 100kHz | 100kHz | 100kHz | 100kHz | 100kHz | 100kHz |
| Topology | Flyback | Flyback | Flyback | Flyback, Tapped Buck | Flyback, Tapped Buck | Flyback, Tapped Buck |
| Tradename | LinkSwitch-CV | LinkSwitch-CV | LinkSwitch-CV | LinkSwitch-CV | LinkSwitch-CV | LinkSwitch-CV |
| Unit Weight | 0.008113 oz | 0.010229 oz | 0.007055 oz | 0.010512 oz | 0.303356 oz | 0.035274 oz |
| Voltage Breakdown | 725V | 725V | 725V | - | - | - |
| Datasheet | - | - | - | |||
| Request Quote | Request Quote | Request Quote | Request Quote | Request Quote | Request Quote |
Selection Guide
Package
8-SOIC (0.154", 3.90mm Width), 7 Leads→LNK626DG-TLLNK625DG-TLLNK623DG-TL
SO-8C→LNK626DGLNK625DGLNK623DG
LinkSwitch-CV Series Applications
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Automotive ElectronicsAEC-qualified semiconductors and interconnects for ADAS, EV powertrain, BMS, and vehicle networks.
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Vehicle NetworkingCAN, LIN, and automotive Ethernet transceivers and PHYs.
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Telematics & Connected VehicleCellular, GNSS, and gateway devices.
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Energy & PowerPower conversion and protection components for solar, storage, charging, and industrial power.
Base Numbers
| Base Number | Description | Variants | Status | Action |
|---|---|---|---|---|
| LNK623DG | LNK623DG variants from Power Integrations | 2 MPNs | Active | View Details |
| LNK625DG | LNK625DG variants from Power Integrations | 2 MPNs | Active | View Details |
| LNK626DG | LNK626DG variants from Power Integrations | 2 MPNs | Active | View Details |
Technical Specifications
Compare key LinkSwitch-CV specifications across available variants. All parameters are typical values at 25 degC unless otherwise noted.
Power Specifications
Output Power
Up to 6W
Input Voltage Range
85–265 VAC (universal input)
Peak Efficiency
>90%
No-Load Power
<30 mW
Safety & Compliance
Safety Certifications
UL, IEC 62368-1
EMI Standard
EN 55032 Class B
Energy Star
CoC Tier 2 / DoE Level VI compliant
Frequently Asked Questions
Common technical questions about the LinkSwitch-CV series.
The LinkSwitch-CV is a Power Integrations Integrated constant-voltage offline converter with minimal external components. The series includes 8 variants optimized for different application requirements.
The LinkSwitch-CV series currently includes 8 variants. Each variant may differ in package type, operating specifications, and feature set. Browse the product table above to compare available options.
The LinkSwitch-CV series is used in Appliance controls, Smart meters, IoT sensors, and Low-power displays. Contact our applications team for design-in support and recommendation.
Octatronics is an authorized distributor of Power Integrations products including the LinkSwitch-CV series. We provide competitive pricing, fast delivery, and full traceability for all components. Request a quote or contact us for availability and lead times.
Yes, Octatronics supports both prototype and production quantities for the LinkSwitch-CV series. Small-quantity orders are available for design evaluation, with volume pricing for production runs. Contact our sales team for custom pricing.