UCC25706P

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The UCC25706P is a device used in a wide range of offline switcher applications. It is an offline AC-DC buck converter with an efficiency of up to 92%. The device is suitable for applications that require both high efficiency and low power consumption. It can be used in applications such as LED lighting, automotive, industrial, consumer, and communications. The device includes a high-side and low-side drive circuit, a feedback circuit, and a peak current limit circuit.

The UCC25706P is a synchronous buck converter that uses a resonant zero-voltage switching (ZVS) technique, which reduces the switching losses and EMI. The device operates at an adjustable frequency of up to 1MHz and is designed to operate within a wide input voltage range of up to 340Vdc. The device also features an onboard power factor correction circuit, allowing it to achieve up to 0.95 power factor.

The UCC25706P is a multi-mode converter, meaning it can be operated in either constant voltage (CV) or constant current (CC) mode. In CV mode, the device regulates the output voltage via an external resistor divider. In CC mode, the output current is regulated by a sense resistor. In both modes, the device has precise regulation with line and load variations, allowing it to achieve a ±1% line and load regulation accuracy.

The device also features built-in protection features, such as undervoltage lockout (UVLO), overvoltage protection (OVP), and overcurrent protection (OCP). The OCP threshold is adjustable, allowing the device to protect against a wide range of fault conditions. Additionally, the device features internal thermal shutdown, which helps protect against any possible thermal runaway conditions.

The device also has a high peak current limit of up to 6A, allowing it to deliver a large amount of current at a high efficiency. The device provides integrated current sense and feedback {protections, which helps reduce the need for external components and simplifies the power supply design. Additionally, the device has an onboard PWM controller and an oscillator, making it suitable for cost-sensitive designs.

In summary, the UCC25706P is a high-efficiency offline switcher that is used in a wide range of applications. It enables precise voltage or current regulation, and provides a wide range of integrated protection features. The device offers high-performance at a low cost, making it an attractive choice for power supply applications.

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