TOP266EG

The TOP266EG is a highly integrated, high-voltage power supply controller designed for switch-mode power supply (SMPS) applications. It operates in a current mode, providing excellent regulation and fast transient response. This device is capable of delivering up to 100W of output power, making it suitable for adapters, TVs, and other consumer electronics.
Key features include a built-in high-voltage startup circuit, an internal oscillator for precise frequency control, and various protection mechanisms such as over-voltage, over-current, and thermal shutdown. The TOP266EG also supports both continuous and discontinuous conduction modes, allowing for flexibility in design based on application requirements.
Additionally, it offers a simple and compact solution, reducing the number of external components needed, which can significantly lower overall size and cost. Its efficiency and reliability make it a popular choice among designers seeking to create efficient power supplies while minimizing design complexity.

The TOP266EG is a highly integrated power switch from Power Integrations designed for offline switching power supplies. Key features include:
1. Integrated Circuit: Combines a high-voltage power MOSFET with a current-mode PWM controller to simplify design and reduce component count.
2. Wide Input Voltage Range: Operates from 85V to 265V AC, making it suitable for universal input applications.
3. High Efficiency: Delivers up to 66W output power with high efficiency, minimizing thermal management needs.
4. Built-in Protection: Features over-voltage, over-current, and thermal shutdown protections, enhancing reliability and safety.
5. Low Standby Power: Offers low standby power consumption, complying with energy-saving regulations.
6. Frequency Modulation: Reduces EMI by using frequency jittering, which spreads the emissions spectrum.
7. Compact Size: Ideal for applications where space is a premium, such as adapters and small power supplies.
These features make the TOP266EG suitable for various applications, including consumer electronics, industrial equipment, and LED drivers.

The TOP266EG is housed in a DIP-8 (Dual In-line Package with 8 pins) configuration. This package type is suitable for through-hole mounting on printed circuit boards (PCBs).

The TOP266EG is a power supply controller IC with a total of 8 pins. Here’s a brief overview of its pin functions:
1. Pin 1 (CS): Current sense input for overcurrent protection.
2. Pin 2 (GND): Ground reference for the IC.
3. Pin 3 (VCC): Supply voltage input for the IC.
4. Pin 4 (SW): Switch node for connecting to the external power components.
5. Pin 5 (COMP): Compensation network connection for feedback control.
6. Pin 6 (FB): Feedback pin for voltage regulation.
7. Pin 7 (SENSE): Internal reference for sensing the output voltage.
8. Pin 8 (DRAIN): Connection to the drain of the external MOSFET.
The TOP266EG is commonly used in cost-effective, isolated power supply applications, such as adapters and off-line converters.

The TOP266EG is manufactured by Power Integrations, Inc. This company is a leading provider of high-performance silicon solutions for the efficient conversion of electrical energy. Power Integrations specializes in the design and development of integrated circuits and other components for power supplies, primarily in applications such as consumer electronics, industrial equipment, and renewable energy systems. Founded in 1988 and headquartered in San Jose, California, Power Integrations is known for its innovative technologies that improve energy efficiency and reduce system size and cost. The company focuses on creating environmentally friendly products that comply with global energy regulations and standards.

The TOP266EG is primarily used in power supply applications, including switch-mode power supplies (SMPS), adapter circuits, and LED drivers. Its versatility allows it to serve in low- to medium-power applications, such as consumer electronics, industrial equipment, and telecommunications devices, efficiently converting AC to DC power while offering features like over-voltage protection and thermal shutdown.

The TOP266EG chip is a single-chip power supply controller. Equivalent products include the TOP264, TOP265, and TOP267 series, which share similar specifications. Other alternatives may include the LM2576, LM2675, and TL494, depending on the application. Always check the datasheets for specific requirements to ensure compatibility.