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LNK305DN
Switching Regulator
LNK305DN
Switching Regulator
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Manufacturer Part # : LNK305DN
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Package/Case: SOIC-7
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Brand: Power Integrations
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Product Categories : AC DC Converters, Offline Switches
Quality Assurance
Quality Assurance
All parts procured from our supply chain network undergo a rigorous incoming inspection process. This meticulous inspection ensures that the parts received by our customers are authentic and meet the required standards. Additionally, we maintain detailed records of these inspections to ensure transparency and traceability throughout the supply chain.
Certification
We have successfully obtained various certification standards and have established our own professional testing laboratory. This ensures that every product we supply to our customers meets the highest quality standards. We adhere to strict testing protocols to maintain the consistency and accuracy of our products. To ensure that our products are original and genuine, we also collaborate with reputable third-party testing facilities to conduct rigorous quality testing. Our commitment to quality extends to meeting industry, legal, regulatory, and ISO 9001:2015 requirements.
Shipping & Payment
Shipping & Payment
About Shipping
We generally ship orders within a few business days through reliable shipping carriers such as FedEx, SF, UPS, or DHL. We also have support for other shipping methods. If you would like to inquire about specific shipping details or costs, please don't hesitate to reach out to us.
About Payment
We accept various payment methods, including VISA, MasterCard, UnionPay, Western Union, PayPal, and other channels.
If you have a specific payment method in mind or would like to inquire about rates and other details, please feel free to contact us.
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Service & Packaging
Service & Packaging
About After Sales Service
All Parts Extended Quality Guarantee
Initiate the application within 90 days from the shipment date.
Confirm the return or exchange with our staff.
Maintain the goods in their original condition as received.
Lastly, please note that the eligibility for return or exchange of goods is subject to an assessment of the actual condition of the returned items. We will evaluate the received goods before finalizing the return or exchange process. If you have any inquiries or require further assistance regarding returns or exchanges, please don't hesitate to contact us at [email protected]
About packaging
Regarding packaging, our products are carefully packed in anti-static bags to provide ESD anti-static protection. The outer packaging is durable with secure closure. We support various packaging methods such as Tape and Reel, Cut Tape, Tube, or Tray.
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LNK305DN DataSheet
Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!
Details
The LNK305DN is a cutting-edge off-line switching IC that combines high performance with energy efficiency, making it an ideal choice for low-power applications where space is limited. With its integrated power MOSFET, PWM controller, and start-up circuit, this versatile IC delivers efficient power conversion in a compact package
Key Features
- Advanced Quasi-Resonant PWM Controller
- Integrated 650V/730V MOSFET
- Lower Standby Power
- Reduced EMI and Higher Efficiency
- Internal HV Start-up Cell
- Auto-restart
- Protection Features: Overload, Short Circuit, Overvoltage, and Overtemperature
- Multiple Package Options
- Green Package with Lead-Free Option
Application
- LED lighting
- AC-DC adapters
- Chargers
- Set-top boxes
- Home automation
- Industrial control
- White goods
- Smart meters
- Audio and video products
- Power supplies for appliances
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Product Category ! | AC/DC Converters | RoHS | Details |
| Mounting Style | SMD/SMT | Package / Case | SO-8C |
| Output Voltage | 12 V | Input / Supply Voltage - Min | 85 VAC |
| Input / Supply Voltage - Max | 265 VAC | Switching Frequency ! | 66 kHz |
| Duty Cycle - Max | 72 % | Operating Supply Current | 220 uA |
| Minimum Operating Temperature | - 40 C | Maximum Operating Temperature ! | + 150 C |
| Output Current ! | 280 mA | Series | LNK30 |
| Brand | Power Integrations | Number of Outputs | 1 Output |
| Product Type ! | AC/DC Converters | Factory Pack Quantity | 100 |
| Subcategory | PMIC - Power Management ICs | Tradename | LinkSwitch-TN |
| Type | Off Line Converter | Unit Weight | 0.070548 oz |
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
What is LNK305DN?
The LNK305DN is a low power off-line switcher IC designed by Power Integrations. It is specifically designed to provide a simple and low-cost solution for power supply applications in a wide range of electronic devices, including TVs, monitors, and household appliances.
How Does LNK305DN Work?
The LNK305DN works by integrating a high-voltage power MOSFET, a multi-mode PWM controller, and a thermal shutdown circuit into a single package. It uses the innovative LinkSwitch-CV technology, which combines the primary, secondary, and feedback circuits into a single-stage device, resulting in highly efficient and compact designs.
How Many Pins does LNK305DN have and What are the Functions of the Pinout Configuration?
The LNK305DN is housed in an 8-pin SOICN (Small Outline Integrated Circuit Narrow) package. The pinout configuration includes:
- BP: Bypass Pin for frequency jittering and brownout detection.
- EN/UV: Enable / Undervoltage Lockout Pin for controlling the IC's operation and protection.
- VIN: Input Voltage Pin for the power supply input.
- D: Drain Pin for the internal power MOSFET.
- FB: Feedback Pin for regulating the output voltage.
- HRNK: Heat Sink and Exposed Pad Pin for thermal management.
- NC: No Connection Pin.
- C: Capacitor Pin for energy storage and snubber capacitance.
What are the Pros and Cons of LNK305DN?
Pros:
- Simple Design: Provides a simple and cost-effective solution for power supply applications.
- Integration: Integrates multiple essential functions into a single IC, reducing external components and board space.
- Efficiency: Utilizes advanced LinkSwitch-CV technology for high efficiency and low standby power consumption.
- Reliability: Includes comprehensive protection features such as thermal shutdown and undervoltage lockout.
Cons:
- External Components: May require careful consideration of external components for optimal performance and EMI compliance.
- Application Specific: Tailored for offline power supply applications and may not be suitable for all power management needs.
- Complexity: Some users may find the integrated functionality challenging to troubleshoot or modify.
Are There Any Equivalents/Alternatives to LNK305DN for Recommendation?
- The LNK304DN and LNK306DN are similar products from Power Integrations with varying specifications.
- Alternatives to the LNK305DN include the FSDM0365RN from Fairchild Semiconductor and the TOP228YN from Power Integrations.
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