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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
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
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製造商零件號 # : LNK501GN
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包裝/封裝: SMD-8
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製造商: Power Integrations
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產品分類 : AC DC Converters, Offline Switches
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LNK501GN 數據表
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詳細說明
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
主要特徵
- 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
應用
- LED lighting applications
- Smart home devices
- Appliances
- Consumer electronics
- Industrial controls
- Power adapters
- USB chargers
- Battery chargers
- Motor control
- Networking equipment
規格
以下是所選零件的基本參數，涉及零件的特性及其所屬類別。
| 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 |
數據表 PDF
數據表記錄了器件的特性、絕對最大額定值、應用等，這對於作為器件特定應用的整體指南大有裨益。
常見問題解答
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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