TOP261EG

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TOP261EG is an integrated power integrated circuit designed to assist in the implementation of cost-effective, energy-saving, and high-performance AC-DC or DC-DC power conversion applications. This integrated power integrated circuit features an 800V avalanche rugged avalanche rectifier, an adjustable frequency of up to 450kHz, and up to 2A output current. The TOP261EG is power versatile and suitable for a wide variety of applications including laptop adapters, DC/DC converters, and audio amplifiers. This article will look at the TOP261EG’s application field and working principle.

Application Field

The TOP261EG is a highly versatile range of AC-DC or DC-DC switching controllers capable of driving a range of loads from 1A to 2A with a maximum output voltage of 45V. It is ideal for battery-powered systems and other high-efficiency power supplies. It is suitable for a number of applications, including:

• Battery-powered products.
• DC/DC converter applications.
• Power adapters.
• Audio amplifiers.
• Chargers.

The adjustable operating frequency of the TOP261EG makes it ideal for providing efficient power conversion even in space-constrained environments or with low-noise requirements.

Working Principle

The TOP261EG is a high-efficiency, integrated power integrated circuit (IPIC) designed for effective, reliable and cost-effective switching power conversion applications. Its highly integrated architecture combines an 800V avalanche rugged avalanche rectifier with a switching frequency range from 150KHz to 450KHz. Its integrated gate driver and low gate charge FETs reduce losses, saving power and increasing efficiency. The TOP261EG also features a built-in soft start capability, which eliminates inrush current for start-up applications, as well as configurable under-voltage lockout (UVLO) settings.

The built-in over-voltage protection (OVP) of the TOP261EG allows short-term output voltage subjection to prevent frozen and a safe reset, while over-current protection (OCP) and thermal protection (TPR) also guarantee reliability and safety. Moreover, the TOP261EG’s excellent alignment, power balance and speed loop control result in excellent regulation accuracy and fast transient recovery.

Conclusion

The TOP261EG is a high-efficiency integrated power integrated circuit featuring up to 2A output current and a maximum output voltage of 45V. It is ideal for a wide range of AC-DC and DC-DC switching applications, including battery-powered products, DC/DC converters, power adapters, audio amplifiers, and chargers. The TOP261EG’s adjustable operating frequency and built-in OVP, OCP and TPR capabilities ensure reliable and cost-effective operation even in tough environments. Its integrated gate driver and low gate charge FETs reduce losses and make the TOP261EG an attractive option for power conversion applications.

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