UCC3808AN-1

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The UCC3808AN-1 device is part of the PMIC AC DC Converters and Offline Switchers category. The device is a single channel high voltage offline switcher which provides a compact, low cost solution with low external component count and ease of design. It utilizes a constant on-time, current mode control scheme, designed to manage power dissipation, provide true prebias start up, and support light load efficiency for energy saving.

The main features of the UCC3808AN-1 device are an integrated 650V totem pole output, low standby power mode and an internal oscillator with an external synchronization option. It works with primary side control, ensuring the device\'s operation in either discontinuous or continuous mode.

The UCC3808AN-1 delivers a range of features that achieve a high degree of protection against both overload and fault conditions, such as output overload, input under voltage lock out, current limitation and thermal overload shutdown protection. The device also offers a load disconnect feature, enabling the instantaneous removal of a current-carrying load among other power-up and power-down sequencing options.

Also important is its self-start feature, designed to allow the device to start operation digitally (i.e. no analog circuit elements), and its Enable/Disable feature which can control a logic signal, providing minimum power dissipation as well as possible additional fault protection.

The UCC3808AN-1 device is designed to work as an offline switcher and it incorporates a 650V power MOSFET. The device includes a peak current-mode PWM controller, with the capability to regulate the output current without any intervening components. This provides the output current regulation for the power stages.

The device\'s main advantages are its stability in both burst mode and continuous current mode operations, along with its frequency jittering feature which reduces EMI effects. Its output voltage accuracy, along with its internal regulation feedback loop, help it to provide a better current waveform, ensuring better efficiency and increased reliability.

The device\'s unique protection features, combined with its low power consumption, make it suitable for a range of applications, including electric vehicles, industrial, consumer and medical equipment, smart meters and a host of other applications. The power level of the UCC3808AN-1 device is suitable for a wide range of AC/DC offline switch mode power supplies in different power ranges.

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