UCC2809D-2

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The UCC2809D-2 is an integrated power management IC that has been embedded with features to monitor, control and regulate operations in the fields of AC/DC converters, offline and LED switchers.

The chip is designed to be used in a wide range of applications, such as mobile phones, computers, chargers, industrial power supplies and more. It provides a variety of operational modes, such as pulse skipper, burst mode, and constant frequency operation, which can be used to build precise and efficient power solutions. This IC also ensures high-speed transient response and continuous current protection.

Application Fields

The UCC2809D-2 is widely used in AC/DC converters, off-line and LED switching applications. This chip is designed to manage, control and regulate AC/DC conversion and switching for precise, efficient solutions. It is highly compatible with a variety of inductors, capacitors and MOSFETs, thus making it suitable for a wide range of applications.

This chip offers a variety of operational modes, such as pulse skipper, burst mode, and constant frequency operation, to ensure precise and efficient solutions in AC/DC converters, off-line and LED switching applications. It offers a wide input voltage range (4.5V to 40V) and can tolerate high temperature operation up to 100°C. This chip also features over-voltage protection, under-voltage protection and short circuit protection to help protect the system components.

Working Principle

The UCC2809D-2 is an integrated power management IC that features a control loop with a PWM controller, a low-power comparator, an oscillator, a soft-start circuit and additional protection circuitry. It monitors and controls the input voltage and provides a regulated output voltage. The PWM controller controls the output voltage by comparing the external resistors and a feedback voltage. The oscillator provides a stable frequency and low ripple operation. The soft-start circuit gradually increases the output voltage after power on. Additionally, the protection circuitry limits the output current and keeps the device safe from the system faults.

In conclusion, the UCC2809D-2 is a high-performance power management IC that is designed for a wide range of AC/DC converters, offline and LED switcher applications. It provides a variety of operational modes and additional protection circuitry to ensure precise and efficient solutions. The chip is highly compatible with a variety of inductors, capacitors and MOSFETs and can tolerate high temperature operation up to 100°C. This makes it an ideal choice for various applications that require power solutions.

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