TOP261EN

Product Overview

Belongs to: Power Management ICs
Category: Integrated Circuits
Use: Power supply management
Characteristics: High efficiency, low standby power, integrated protection features
Package: TO-220, TO-263, eSIP-7C
Essence: Efficient power management
Packaging/Quantity: Tube/50 units, Tape & Reel/800 units

Specifications

Input Voltage Range: 85 VAC to 265 VAC
Output Power: Up to 25 W
Switching Frequency: 132 kHz to 150 kHz
Operating Temperature Range: -40°C to 125°C
Standby Power Consumption: <30 mW at 230 VAC input

Detailed Pin Configuration

VDD: Power supply voltage
GND: Ground
FB: Feedback input
D: Drain connection for external MOSFET
S: Source connection for external MOSFET
CS: Current sense input
RT/CLK: Oscillator timing resistor or clock input
BP/MODE: Bootstrap capacitor connection or mode selection

Functional Features

Integrated 700 V MOSFET
Auto-restart for short-circuit and open-loop protection
Frequency jittering for reduced EMI
Accurate over-temperature protection
EcoSmart™ technology for low standby power consumption

Advantages and Disadvantages

Advantages: - High efficiency - Wide input voltage range - Integrated protection features - Low standby power consumption

Disadvantages: - External components required for operation - Limited output power compared to some alternatives

Working Principles

The TOP261EN is a primary-side regulated (PSR) flyback controller designed for isolated power supplies. It utilizes a proprietary EcoSmart™ technology to provide high efficiency across various load conditions while minimizing standby power consumption. The device integrates a 700 V MOSFET, reducing the need for external components and simplifying the design of compact and efficient power supplies.

Detailed Application Field Plans

The TOP261EN is well-suited for a wide range of applications, including: - AC/DC power supplies for home appliances - LED lighting drivers - Auxiliary power supplies in industrial equipment - USB and charger adapters - Standby and auxiliary power supplies in televisions and monitors

Detailed and Complete Alternative Models

Some alternative models to the TOP261EN include: - TOP258PN: Similar PSR flyback controller with lower power capability - TOP266EN: Higher power PSR flyback controller with similar features - L6562A: Boundary mode PFC controller with integrated MOSFET

In conclusion, the TOP261EN offers efficient power management with integrated protection features, making it suitable for a variety of applications in the power supply management domain.

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Sebutkan 10 pertanyaan dan jawaban umum terkait penerapan TOP261EN dalam solusi teknis

Sure, here are 10 common questions and answers related to the application of TOP261EN in technical solutions:

Q: What is TOP261EN? A: TOP261EN is a highly integrated energy-efficient off-line switcher IC designed for low-power applications.
Q: What are the typical applications of TOP261EN? A: TOP261EN is commonly used in power supplies for appliances, industrial systems, LED lighting, and other low-power electronic devices.
Q: What is the maximum output power that TOP261EN can handle? A: TOP261EN can handle output power up to 25 watts, making it suitable for a wide range of low-power applications.
Q: What are the key features of TOP261EN? A: The key features of TOP261EN include integrated 700V MOSFET, frequency jittering for low EMI, auto-restart for short-circuit protection, and more.
Q: How does TOP261EN help in achieving energy efficiency? A: TOP261EN incorporates advanced control and protection features to optimize energy efficiency and minimize standby power consumption.
Q: Can TOP261EN operate in a wide input voltage range? A: Yes, TOP261EN can operate in a wide input voltage range, typically from 85VAC to 265VAC.
Q: What are the thermal considerations when using TOP261EN? A: Proper PCB layout and thermal management are important to ensure optimal performance and reliability when using TOP261EN.
Q: Is TOP261EN suitable for flyback or buck-boost converter topologies? A: Yes, TOP261EN is suitable for both flyback and buck-boost converter topologies, offering flexibility in design.
Q: What are the recommended external components to use with TOP261EN? A: The datasheet provides a list of recommended external components, including capacitors, resistors, and inductors, to optimize the performance of TOP261EN.
Q: Are there any application notes or reference designs available for TOP261EN? A: Yes, the manufacturer provides application notes and reference designs to assist engineers in implementing TOP261EN in various technical solutions.

I hope these questions and answers provide a good overview of the application of TOP261EN in technical solutions. Let me know if you need further information on any specific aspect!