Description
The TOP226YN is a member of the TOPSwitch-HX family, produced by Power Integrations. It is an integrated offline switcher IC designed for power supply applications, offering a high level of integration for efficiency and reliability. Key features include a built-in 700V power MOSFET, PWM controller, fault protection, and other control circuitry, allowing it to manage switch mode power supplies with minimal external components. The device is designed for applications such as adapters, chargers, and standby power supplies, providing benefits like reduced component count, higher efficiency, and design simplicity. It supports both flyback and forward topologies, making it versatile for various designs. The TOP226YN can handle high input voltage ranges and offers features such as frequency jittering for lower EMI, soft-start, and cycle-by-cycle current limiting for enhanced operational safety. It is usually packaged in a TO-220 form, facilitating easy integration into standard power supply designs. This IC aims to streamline the design process while ensuring robust performance in various power management applications.
Equivalent
The TOP226YN chip is part of the TOPSwitch-II series by Power Integrations. Equivalent products or alternatives you can consider include other models from the TOPSwitch series such as
TOP223YNTOP224YNand
TOP225YN depending on the specific power and application requirements. Additionally, similar functionalities might be found in other families like the LNK series from Power Integrations or some designs from manufacturers like ON Semiconductor and STMicroelectronics, though specifications should be compared closely.
Features
The TOP226YN is a member of the TOPSwitch-II family of integrated switcher ICs designed for use in off-line power supplies. Key features include:
1. High Efficiency: The IC integrates a high-voltage power MOSFET and control circuitry, reducing power loss and increasing efficiency in power supply designs.
2. Compact Design: Its integration allows for a more compact power supply design by minimizing the need for external components.
3. Thermal Protection: It includes built-in thermal shutdown protection to prevent damage due to overheating.
4. Current Limiting: Features cycle-by-cycle current limiting to protect against overcurrent conditions.
5. Frequency Jittering: This feature helps reduce electromagnetic interference (EMI) by spreading the frequency spectrum.
6. Auto-Restart: In case of fault conditions like output short-circuit or open-loop, the IC automatically enters a low-power mode, periodically checking for recovery.
7. Low Standby Power: It is designed to consume very low power during no-load conditions, making it suitable for energy-efficient applications.
8. Wide Input Voltage Range: Supports a wide input voltage range, making it versatile for various applications.
These features make the TOP226YN a robust choice for applications requiring efficient and reliable power supply solutions.
Pinout
The TOP226YN is a member of the TOPSwitch-II family, which is a series of monolithic high-voltage power conversion integrated circuits. It typically comes in a TO-220 package and features three main pins:
1. D (Drain): This pin is connected to the high-voltage drain of the integrated MOSFET. It is the primary switching element that handles the load current.
2. S (Source): This is the ground reference and the source of the integrated MOSFET. It serves as a return path for the primary-side current.
3. C (Control): This pin is used for control and feedback functions. It manages the power supply operation, including turning the device on or off and adjusting the duty cycle to maintain regulation.
The TOP226YN is commonly used in power supply applications due to its ability to integrate a high-voltage MOSFET with control circuitry, enabling efficient and compact design solutions.
Manufacturer
The TOP226YN is manufactured by Power Integrations, Inc. Power Integrations is a semiconductor company that specializes in developing and marketing high-performance electronic components used in high-voltage power conversion. The company's products are widely used in power supplies for a variety of electronic devices, including computers, televisions, appliances, smart meters, and LED lights. Power Integrations is known for its innovative solutions in the realm of energy efficiency and for its contributions to reducing overall energy consumption through its integrated circuits and related products.
Application
The TOP226YN is a Power Integrations TOPSwitch-II series switch-mode power supply (SMPS) IC. Its primary application areas include AC-DC power supplies, adapters, and chargers. It is commonly used in consumer electronics such as televisions, DVD players, and set-top boxes. The TOP226YN is also suitable for powering networking equipment, office automation products, and industrial systems. It supports efficient power conversion and can be used in designs requiring high reliability and energy efficiency, making it ideal for standby power systems and battery management applications. Its integration of control and power components helps reduce the size and cost of power supply designs.
Package
The TOP226YN is packaged in a TO-220-7B form. This package type typically features a plastic body with metal leads and is commonly used for power semiconductor devices.