UCC2809PW-2

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UCC2809PW-2 is an advanced monolithic system component that provides microcomputer control of an AC-to-DC converter or offline switcher with the ability to control multiple rail voltages. The component is specifically designed for low-cost UCC socket solutions, making it ideal for substituting larger, more costly modules with less power consumption. It contains a voltage soft-start system and includes a built-in precision voltage detector, a preset DC voltage limit, and a power-ON reset to enable more reliable and predictable hardware startup.

UCC2809PW-2 features a programmable AC line frequency and a built-in DC sense line for added system accuracy. It allows for diagnostics and offers adjustable soft-start duration, allowing users to set the timing to various nominal power-up times. Additionally, an input voltage sense feature permits low-line detection and differential voltage sensing, allowing for self-protection in the event of under-voltage or over-voltage conditions.

UCC2809PW-2 also features Synchronous Rectification, which helps minimize switching losses and can reduce the need for external heatsinking. The low number of external components helps to reduce design time and eliminate design errors. The highly efficient power conversion system produces a symmetric, low harmonic output with a minimal voltage drop across the main switch.

The component is typically used in PCs, UPS systems, and servers where it can control multiple simultaneously operating rails. In these applications, the UCC2809PW-2 can control up to four power rails in combination with an associated control logic and any necessary peripheral components. The advanced power control capabilities combined with the low number of external components makes for a very cost effective solution.

The UCC2809PW-2 is a highly efficient system component with a wide range of applications and uses. The programmable nature of the device makes it highly versatile and allows the user to customize the device to the application\'s specific requirements. In PC power supply applications, the advanced power control capabilities of the UCC2809PW-2 can help to reduce cost, power consumption, and improve system reliability.

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