UCC38500DW

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

Power Factor Correction (PFC) is an important and critical aspect to ensure that modern electronic systems operate efficiently and reliably. The UCC38500DW is an integrated, single-stage, high-Frequency, synchronous, switched-mode PFC controller specifically designed to maximize power loss reduction, while promising a high level of system integration with improved system performance. Being a Buck-Boost topology, this device support both PFC boost pre-regulator, wide DC Input voltage and power factor correction which allows higher power savings under higher load conditions.

The main working principle of the UCC38500DW is to automatically regulate the ac power line voltage in order to achieve more efficient power transfer. It uses a digital control section to drive either a pair of enhanced MOSFETs, or a NPN output transistor as the main power switch. This device incorporates a sensing section that consists of voltage sense, current sense, power status and temperature sense respectively. The input signal from these sensors are then converted a PWM signal to drive the driver circuit which then drives the power switch. The power switching controller does a good job in minimizing the switching losses to ensure that the power output is as efficient as possible.

The UCC38500DW is capable of delivering a high power density and is ideal for cost-sensitive, high efficiency power systems such as AC-DC or DC-DC, power adaptors, lighting, PDA/other portable electronics, battery-chargers and multiple-output power supplies. It also offers a wide range of integrated features that helps makes the PFC design process simpler. It has several built-in protections such as current limit, overvoltage protection, thermal shutdown etc. It also has multi-mode operational modes to allow the user to fine-tune the system behavior. Additionally, it provides a low-ripple current mode and output voltage derivative feature that improves the dynamic performance of the system and ensures a better system efficiency.

In conclusion, the UCC38500DW is an ideal choice for a single-stage, high-efficiency power supply system and offers better system performance, higher power density and maximum power savings under high load conditions. With its integrated features and protections, this device offers great flexibility and customization for PFC design, thus making it an ideal choice for various power system applications.

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