UCC3809PTR-2

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction to UCC3809PTR-2:

UCC3809PTR-2 is a highly integrated AC/DC switch-mode power supply integrated circuit manufactured by Texas Instruments. It features an adaptive on-time/peak current control architecture, typically used for offline, low power applications such as wall adapters and battery-operated equipment. It integrates functions such as: rectifier front-end, power conversion, timer and gate drive, peak current control and open-loop circuit protection.

Application Field:

The UCC3809PTR-2 is suitable for offline, low power applications such as battery charger and wall adapter. The device is an integrated power supply for charging small battery packs and for powering precision small electronics device. The UCC3809PTR-2 is ideal for power supplies that require high efficiency, small size, and low standby power without sacrificing ease of use. With its integrated protection features and active peak current control, the UCC3809PTR-2 is a solid choice for providing a reliable solution for battery-powered applications.

Working Principle:

The UCC3809PTR-2 works on the principle of an AC/DC offline switcher. An AC power source is rectified and filtered to form a DC voltage. This DC voltage is then switched at a predetermined frequency by the internal switch of the UCC3809PTR-2. The switch is driven by an internal oscillator, which can be programmed by external components such as resistors and capacitors to meet the desired power conversion ratio. The peak current of the internal switch is controlled via an internal comparator that monitors the peak current. When the peak current reaches a preset threshold, the internal switch is turned off until the current drops below the threshold.

Conclusion:

The UCC3809PTR-2 from Texas Instruments is a highly integrated AC/DC switch-mode power supply IC that provides high efficiency, small size, and low standby power for offline, low power applications such as battery charger and wall adapter. It features an adaptive on-time/peak current control architecture, typically used for offline, low power applications. The UCC3809PTR-2 works on the principle of an AC/DC offline switcher where an AC power source is rectified and filtered to form a DC voltage, which is then switched at a predetermined frequency. The peak current of the internal switch is controlled via an internal comparator that monitors the peak current.

The specific data is subject to PDF, and the above content is for reference