TOP224YN

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TOP224YN

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IC OFFLINE SW MULT TOP TO220-3

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thuộc tính Giá trị
Package / Case Tube
Series TOPSwitch®-II
Part Status Not For New Designs
Output Isolation Isolated
Internal Switch(s) Yes
Voltage - Breakdown 700V
Topology Boost, Buck, Flyback, Forward
Duty Cycle 67%
Frequency - Switching 100kHz
Power (Watts) 75 W
Fault Protection Current Limiting, Over Temperature
Operating Temperature -40°C ~ 150°C (TJ)
Supplier Device Package TO-220-3

Tổng quan

Description

The TOP224YN is a member of the TOPSwitch-II family, a series of high-efficiency, integrated switching power supply ICs. Designed by Power Integrations, it simplifies the design and reduces the component count of switching power supplies. The TOP224YN integrates a high-voltage power MOSFET, PWM control, and fault protection circuitry onto a single chip, enabling efficient energy conversion and compact design.
Key features include a wide input voltage range, high efficiency, and comprehensive protection features, such as over-temperature and over-current protection. It is often used in applications requiring a cost-effective, reliable power supply solution, including chargers, adapters, and standby power systems.
The device supports both flyback and forward converter topologies and operates in either discontinuous or continuous conduction modes. The TOP224YN is typically housed in a TO-220 package, which facilitates heat dissipation, making it suitable for medium power applications. Its design flexibility, coupled with robust performance metrics, makes it a popular choice among engineers working on power electronics projects.

Equivalent

The TOP224YN is a member of the TOPSwitch-II family of integrated offline switcher chips. Equivalent products or alternatives include chips from the same family, like TOP223YN or TOP225YN, which may differ in power output and features. Other equivalent series from different manufacturers could include Power Integrations' TinySwitch or LinkSwitch families, depending on the application requirements. Always check the specific parameters like power rating, switching frequency, and package type to ensure compatibility.

Features

The TOP224YN is a member of the TOPSwitch-II family of integrated offline switchers from Power Integrations, designed for use in AC-DC power conversion applications. Key features of the TOP224YN include:
1. Integration: Combines a high-voltage power MOSFET, PWM control, fault protection, and other vital components into a single IC.
2. Efficiency: Provides high energy efficiency with minimal external components, reducing overall system cost.
3. Flexibility: Supports both discontinuous and continuous mode operations, allowing for various power supply designs.
4. Protection: Includes safety features such as over-temperature protection, over-current limiting, and automatic restart for fault conditions.
5. Design Simplicity: Simplifies the design of flyback, forward, and other topologies with fewer components.
6. Thermal Performance: Offers good thermal performance in a TO-220 package, suitable for heatsinking.
7. Wide Range: Operates over a wide input voltage range, supporting global power supply standards.
The TOP224YN is commonly used in applications like power adapters, chargers, and standby power supplies due to its robust feature set and ease of use.

Pinout

The TOP224YN is a member of the TOPSwitch-II family of integrated off-line switcher ICs. It comes in a TO-220-3 (Y) package with three pins. Here's a brief description of each pin and its function:
1. Source (Pin 1): This pin serves as the ground reference for the power switch and control circuitry. It is one of the main terminals of the internal MOSFET switch.
2. Drain (Pin 2): This pin is connected to the high-voltage DC input and is one of the power MOSFET's drain terminals. It is the main switching terminal that handles the input power.
3. Control (Pin 3): This pin is used for the control of the IC. It provides access to the control circuitry for programming current limit, feedback control, and external synchronization. It also serves as a bypass for the internal high-voltage current source that charges an external bypass capacitor.
The TOP224YN is commonly used in switched-mode power supplies (SMPS) and offers high efficiency while integrating the features necessary for a flyback circuit.

Manufacturer

The TOP224YN is manufactured by Power Integrations, Inc. Power Integrations is a semiconductor company specializing in the development and production of high-performance electronic components for power conversion. The company is known for its innovative solutions in power efficiency, offering products that are used in a wide range of power supply applications, including consumer electronics, appliances, industrial systems, and LED lighting. Power Integrations focuses on integrating high-voltage power conversion and control circuits, which help reduce energy consumption and improve reliability in power conversion systems.

Application

The TOP224YN is a high-efficiency PWM switch designed for use in various power supply applications. Its primary application areas include:
1. AC-DC Power Supplies: Used in adapters and chargers for consumer electronics such as smartphones, laptops, and tablets.
2. Industrial Power Supplies: Employed in powering industrial equipment requiring stable DC output.
3. LED Drivers: Utilized in applications requiring constant current for LED lighting.
4. Standby and Auxiliary Supplies: Used in systems requiring low standby power consumption.
5. Battery Chargers: Suitable for efficient battery charging solutions.
6. Telecommunications: Applied in power supply units for telecom equipment.
These applications benefit from the chip's ability to deliver high efficiency and reliability.

Package

The TOP224YN is a member of the TOPSwitch-II family of integrated circuits, which are used for power conversion. It comes in a TO-220 package type, a through-hole package known for its three-pin configuration and a metal tab for heat dissipation. This package is widely used in power electronics for its durability and thermal management capabilities.

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