UCC2807N-2

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UCC2807N-2 Application Field and Working Principle

The UCC2807N-2 is a family of high-voltage multipliers. This device is a switching regulator which can operate in either peak current mode or voltage-mode control applications. It can provide flexible design solutions for a wide variety of applications in the field of PMIC – AC DC converters and offline switchers. This device is designed to be used with both universal input (90-265VAC/DC) and low current applications. It is also applicable to designs that require high efficiency, low noise and tight regulation.

Features of UCC2807N-2

• High-efficiency—Up to 97.4% peak efficiency with peak current mode control.
• Wide operating voltage range—+7V to +80V on the input and +2V to +22V on the output.
• Flexible design —Supports both synchronous and non-synchronous PWM operation.
• Compact size —Reduced board space with the 8-lead TSOT-23 package.
• Embedded protection—Controlled Start-Up, Under-Voltage Lock-Out (UVLO), Over-Current Protection (OCP), and Over-Voltage Protection (OVP).

Application fields of UCC2807N-2

UCC2807N-2 is a family of high-voltage high-performance multipliers which can be used in a wide range of applications including digital power supplies and chargers as well as offline switchers and battery chargers. It is suitable for applications with high efficiency requirements, low noise, and tight regulation. Its features, capabilities and attributes make it suitable for applications such as notebook adapters, external power adapters, telecom, lighting, home and industrial consumers, white goods, and power conversion products. It is also suitable for use in distributed power systems, industrial and automotive DC/DC converters and LED lighting.

Working Principle of UCC2807N-2

UCC2807N-2 comprises of a high voltage doubler and a current mode PWM converter. The doubler increases the input voltage to up to 80V. The PWM controller then regulates the output voltage using a peak current mode control technique. In this technique, the output voltage is regulated by comparing the voltage across a sense resistor to the reference voltage. The peak current mode control method enables stable operation over a wide input voltage and output current range.

The device also provides protection features such as controlled start-up, UVLO and OVP circuits to ensure safe operation for applications operating in harsh environments. Additionally, the synchronous PWM mode reduces the power dissipation of the parts externally connected to the supply and increases the efficiency of the system.

Conclusion

UCC2807N-2 is a family of adjustable high-voltage multipliers designed for use in PMIC – AC DC converters and offline switchers applications. It provides high efficiency and low noise and offers flexibility in design. It also provides protection features to ensure safe operation in harsh environments. With its wide range of features and capabilities, UCC2807N-2 is a suitable choice for a wide range of applications.

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