LNK501GN

AC/DC Converters with 3 W power when input is in the range of 85-265 VAC and 4 W power when input is 230 VAC
7,161 Effective Inventory

LNK501GN

Effective Inventory7,161

AC/DC Converters with 3 W power when input is in the range of 85-265 VAC and 4 W power when input is 230 VAC

  • Manufacturer Part # : LNK501GN

  • Package/Case: SMD-8

  • Brand: Power Integrations

  • Product Categories : AC DC Converters, Offline Switches

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Shipping & Payment

Shipping & Payment

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Service & Packaging

Service & Packaging

About After Sales Service

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LNK501GN DataSheet
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Rapid Quote

Please submit RFQ for LNK501GN or email to us: Email: [email protected], we will contact you in 12 hours.

Details

Discover the LNK501GN, an all-inclusive off-line switcher IC meticulously tailored for energy-efficient performance in LED lighting applications. Equipped with a 550V power MOSFET, integrated oscillator, simple on/off control scheme, and efficient switching controller, this IC can deliver up to 14W of output power without the need for an external heatsink—making it a perfect fit for small LED lighting fixtures. With built-in features such as auto-restart for fault protection, cycle-by-cycle current limit for overcurrent protection, thermal shutdown for over-temperature protection, and frequency jittering for improved EMI performance, the LNK501GN guarantees reliable operation and protection against common fault conditions. Furthermore, this switcher IC boasts an impressive efficiency of up to 85% and operates over a wide input voltage range of 85V to 265V, rendering it suitable for use in a variety of mains-powered LED lighting applications. Encased in a compact SMD package, the LNK501GN facilitates easy mounting on a PCB, ultimately reducing overall system size and cost. To sum it up, the LNK501GN is a versatile and efficient off-line switcher IC designed to meet the stringent demands of LED lighting applications, offering high performance, reliability, and energy efficiency in one compact package

Key Features

  • Wide input voltage range of 4.5V to 60V
  • Low dropout voltage of 310mV @ 100mA load
  • Output current up to 500mA
  • Integrated with thermal shutdown protection
  • High PSRR and low noise output
  • Available in ultra-thin, low profile SOT-23 package

Application

  • LED lighting applications
  • Smart home devices
  • Appliances
  • Consumer electronics
  • Industrial controls
  • Power adapters
  • USB chargers
  • Battery chargers
  • Motor control
  • Networking equipment

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 SMD-8
Output Voltage 5.6 V Input / Supply Voltage - Min 85 VAC
Input / Supply Voltage - Max 265 VAC Switching Frequency ! 42 kHz
Duty Cycle - Max 80 % Operating Supply Current 1.06 mA
Minimum Operating Temperature - 40 C Maximum Operating Temperature ! + 150 C
Series LNK501 Brand Power Integrations
Moisture Sensitive Yes Product Type ! AC/DC Converters
Factory Pack Quantity 50 Subcategory PMIC - Power Management ICs
Tradename LinkSwitch Unit Weight 0.151461 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.

Preliminary Specification LNK501GN PDF Download

FAQs

What is LNK501GN?

The LNK501GN is a low-power, offline switcher IC designed by Power Integrations. It is ideal for use in offline power supplies and provides highly efficient power conversion for applications such as chargers, adapters, and auxiliary power supplies.

How Does LNK501GN Work?

The LNK501GN operates as an offline switcher IC, integrating a power MOSFET, a multi-mode controller, and a high-voltage startup regulator. It delivers accurate output voltage regulation and works with primary-side regulation, eliminating the need for an optocoupler and an output voltage feedback loop.

How Many Pins does LNK501GN have and What are the Functions of the Pinout Configuration?

The LNK501GN is housed in an 8-pin SOIC (Small Outline Integrated Circuit) package. The pinout configuration includes:

  • VIN: Input voltage pin.
  • GNDA: Analog ground pin.
  • VOUT: Output voltage pin.
  • BP/M: Brownout and frequency modulation pin.
  • FB: Feedback pin.
  • EN/UV: Enable and undervoltage lockout pin.
  • Drain: Power MOSFET drain pin.
  • Bias: Bias pin for internal circuitry.

What are the Pros and Cons of LNK501GN?

Pros:

  • High Efficiency: Provides highly efficient power conversion for energy-saving designs.
  • Primary-Side Regulation: Eliminates the need for an optocoupler and simplifies the design.
  • Low Component Count: Requires fewer external components, reducing overall system cost and size.
  • Integrated Features: Integrates a power MOSFET and a multi-mode controller for compact and reliable operation.
  • Wide Input Voltage Range: Suitable for a variety of input voltage levels and applications.

Cons:

  • External Components: May require additional external components for specific application requirements.
  • Complexity: Design considerations for high-voltage operation and EMI compliance may be needed.

Are There Any Equivalents/Alternatives to LNK501GN for Recommendation?

  • The LNK302/304/305 series from Power Integrations are similar offline switcher ICs with different power ratings and features.
  • Alternatives to the LNK501GN include the FSDM311 from Fairchild Semiconductor and the TNY280 from Power Integrations.

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