LNK500PN

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LNK500PN

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IC OFFLINE SWITCH FLYBACK 8DIP

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Spezifikationen

Attribut Wert
Package Tube
Series LinkSwitch®
ProductStatus Not For New Designs
OutputIsolation Isolated
InternalSwitch(s) Yes
Voltage-Breakdown 700V
Topology Flyback
DutyCycle 77%
Frequency-Switching 30kHz ~ 42kHz
Power(Watts) 5.5 W
FaultProtection Current Limiting, Open Loop, Over Temperature, Short Circuit
OperatingTemperature -40°C ~ 150°C (TJ)
Package/Case 8-DIP (0.300, 7.62mm), 7 Leads
SupplierDevicePackage 8-PDIP-B

Übersicht

Description

The LNK500PN is a power integrated circuit (IC) designed for use in low-power, offline switch-mode power supplies. Developed by Power Integrations, it combines a high-voltage power MOSFET with control circuitry on a single chip, offering efficiency and reliability for small power applications. The IC is part of the LinkSwitch-TN series, which targets non-isolated, buck, boost, or flyback power supply designs.
Key features of the LNK500PN include a wide input voltage range, low standby power consumption, and a built-in auto-restart protection mechanism for fault conditions such as overload and open loop. Its design is tailored for simple implementation with minimal external components, reducing overall system cost and complexity.
The LNK500PN is often used in applications like appliances, industrial controls, and consumer electronics, where space and energy efficiency are crucial. Its robust performance and integrated safety features make it a popular choice for engineers looking to design compact, efficient power supplies.

Equivalent

The LNK500PN is a power conversion switcher IC used in low-power applications. Equivalent products to the LNK500PN include:
1. Power Integrations' LNK501 series
2. ON Semiconductor's NCP1014 series
3. STMicroelectronics' VIPer12AS
4. Fairchild/ON Semiconductor's FAN7602
These alternatives offer similar functionalities and are used for efficient power supply designs in compact spaces. Always check the specific requirements and datasheets to ensure compatibility with your application.

Features

The LNK500PN is an integrated circuit from Power Integrations designed for use in non-isolated, off-line power supplies. Key features include:
1. Design Simplicity: It integrates a high-voltage power MOSFET and control circuitry, reducing component count and simplifying design.
2. Efficiency: Delivers high efficiency across a wide load range, crucial for energy-saving applications.
3. Output Power: Typically suitable for low-power applications, providing up to 3 watts without a heat sink.
4. Power Factor: Equipped with a line-side control, it aids in improving power factor.
5. Protection Features: Includes over-temperature, over-current, and over-voltage protection, ensuring reliability and safety.
6. Regulation: Offers tight regulation over a wide input voltage range, making it robust against input fluctuations.
7. Compact Size: Its small footprint allows for space-saving designs in compact applications.
This makes the LNK500PN ideal for use in small appliances, chargers, and LED drivers where efficiency, size, and reliability are critical.

Pinout

The LNK500PN is an integrated circuit from Power Integrations designed for use in low-power, off-line switch-mode power supplies. It comes in an 8-pin DIP (Dual In-line Package). Here is a brief overview of its pin functions:
1. BP/M: This pin is used for the connection of an external bypass capacitor.
2. S: Source pin for the internal power MOSFET, often connected to the common ground of the primary side.
3. FB: Feedback pin, which is used to regulate the output voltage by receiving feedback from the output.
4. D: Drain pin of the internal power MOSFET, connected to the transformer primary winding.
5. N/C: No connection, typically not used.
6. N/C: No connection, typically not used.
7. N/C: No connection, typically not used.
8. N/C: No connection, typically not used.
The device is especially efficient for applications requiring low standby power or for power supplies in electronic devices.

Manufacturer

The LNK500PN is manufactured by Power Integrations, Inc. Power Integrations is a semiconductor company based in the United States. It specializes in the design and development of analog and mixed-signal integrated circuits. These ICs are primarily used for power conversion, including AC-DC power supplies and LED lighting. The company is known for its innovative solutions that enhance energy efficiency in electronic devices.

Application

The LNK500PN is commonly used in low-power AC-DC conversion applications. Its primary application areas include:
1. Consumer Electronics: Powering small appliances, chargers, and adapters.
2. Household Appliances: Used in devices like coffee makers and electric kettles.
3. LED Drivers: Providing efficient power management for LED lighting solutions.
4. Industrial Controls: Used in power supplies for sensors and other control systems.
5. Smart Meters and Home Automation: Powering devices in smart grid and IoT applications.
Its compact size, efficiency, and reliability make it suitable for applications requiring low power and high efficiency.

Package

The LNK500PN is a power integration IC that typically comes in a DIP-8 package, which is a through-hole package featuring 8 pins. This package type is commonly used due to its ease of handling and ability to dissipate heat effectively, making it suitable for various power supply applications.

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