UCD9240PFCR

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UCD9240PFCR is a specialized power management integrated circuit (PMIC) designed for use in communications infrastructure, video surveillance and data storage applications. The UCD9240PFCR provides programmable active power factor correction (PFC) and a complete regulation and control subsystem for high efficiency power delivery to reduce power dissipation and extend operating time of the system.

At the heart of the UCD9240PFCR is the programmable digital power system (DPMS). DPMS is a combination of proprietary dynamic loop control technology, unique high-precision voltage and current sensor measurement capabilities, and flexible architecture that enable the dynamic response and robust stability control of active PFC systems. With the dynamic control loop of the UCD9240PFCR, the system can respond rapidly to fast changes in load or other operating conditions and reduce output ripple, ensuring efficient and reliable system operations.

Additionally, UCD9240PFCR provides input over-voltage protection, output voltage under/over-voltage protection, and output over-current protection to ensure the power delivery system is reliable and safe. Plus, UCD9240PFCR has an integrated spread spectrum function to reduce electromagnetic interference (EMI), which allows the system to meet international EMI regulatory standards.

The UCD9240PFCR also provides various flexible power control settings to provide system designers with more options when juggling the tradeoffs between efficiency, power delivery, system layout, cost, and product form factor. For example, the power system can be programmed to operate in Continuous Conduction Mode (CCM) or Discontinuous Conduction Mode (DCM) with fast transient response to improve system efficiency in light loading or output current that is relatively low. In addition, the output voltage of the UCD9240PFCR can be programmed to any desired value with a resolution of 0.025V to enable greater flexibility for system design.

Key features of UCD9240PFCR include wide input voltage range from 100VAC to 550VAC, active input power factor correction (PFC) capability, high power efficiency up to 96.5%, accurate, low ripple and noise output voltage regulation, and operating temperature range from -40°C to +105°C. This flexibility, accurate control, and efficiency make UCD9240PFCR the ideal choice for applications such as communications infrastructure, video surveillance, and data storage.

Overall, the UCD9240PFCR provides system designers with key active power factor correction and power control functions in a small, highly integrated, cost-effective package. The UCD9240PFCR delivers excellent dynamic response, robustness and controllability, ensuring reliable and efficient system performance at all times.

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