TOP233YN

The TOP233YN is a highly integrated power switch designed for use in off-line power supply applications. It is part of the TOPSwitch family from Power Integrations, which is known for its efficiency and reliability in power conversion.

Key Features:

1. Integrated Circuit Design: The TOP233YN combines a high-voltage power MOSFET with a PWM controller in a single package, which simplifies the design and reduces the number of external components required.

2. High Voltage Capability: It can operate with input voltages up to 1000V, making it suitable for a wide range of applications, including those that require isolation from the mains.

3. Output Power: The device is capable of delivering up to 25W of output power in a typical application, making it ideal for low to medium power supplies.

4. Efficiency: The TOP233YN is designed for high efficiency, often exceeding 85%, which helps in reducing heat generation and improving overall system reliability.

5. Built-in Protection Features: It includes several built-in protection mechanisms such as over-voltage protection (OVP), over-current protection (OCP), and thermal shutdown, which enhance the safety and longevity of the power supply.

6. Compact Package: The device is available in a DIP-8 package, which is compact and easy to handle, making it suitable for space-constrained applications.

7. Frequency Operation: The TOP233YN operates at a fixed frequency, typically around 100 kHz, which helps in minimizing the size of the magnetic components in the power supply design.

8. Application Versatility: It is suitable for a variety of applications, including adapters, chargers, and auxiliary power supplies for consumer electronics, industrial equipment, and telecommunications.

Electrical Characteristics:

• Input Voltage Range: 85V to 265V AC
• Output Voltage: Typically designed for 5V to 15V outputs, depending on the application.
• Switching Frequency: Approximately 100 kHz
• Operating Temperature Range: -40°C to +125°C, allowing for operation in harsh environments.

Typical Applications:

• Power adapters for laptops and mobile devices
• LED drivers
• Battery chargers
• Isolated power supplies for industrial control systems

Conclusion:

The TOP233YN from Power Integrations is a versatile and efficient solution for designers looking to create reliable power supplies with minimal external components. Its combination of high voltage capability, built-in protections, and compact design makes it a popular choice in various electronic applications.