UCC3957M-2G4

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PMIC or “Power Management Integrated Circuits” are specialized devices used to manage power conversion and distribution on circuit boards. As an essential part of the system’s power architecture, they serve the dual role of controlling power flow and system efficiency. Battery management, a specialization of power management, is the field of managing and optimizing battery life, especially in devices that are powered by a battery or in applications where battery life is important. UCC3957M-2G4 is a battery management integrated circuit (PMIC) developed by ON Semiconductor, which can be utilized to address the need for efficient, reliable and sustainable energy management for a wide range of applications.

UCC3957M-2G4 is based on an innovative low-power process technology, designed to help customersMeet ENERGY STAR® requirements, reduce their system cost and increase battery life. It is a highly integrated battery management solution, featuring a buck-boost controller and various protection features. The device provides an advanced current-mode control circuit, boosting an input voltage from 0.4V to 6V for high efficiency and wide operating parameters. It also features thermal-shutdown and current-limit protections, to help shorten the time-to-market.

The device is well suited for a variety of applications, including USB chargers, PDAs, MP3 players, portable medical equipment and miniature active-matrix OLED display backlighting. It can also be used in low-power computing, such as tablet PCs, MIDs and subnotebooks, as well as off-line AC-to-DC power systems. The device provides an adjustable output voltage and current, enabling precise regulation of outputs without requiring external components, and allowing precise control of output ripple and noise.

The working principle of the UCC3957M-2G4 is based on its internal buck-boost controller. It comprises three stages: Powertrain control; AC/DC converters and Load-direct-float (LDF). Powertrain control is responsible for the power supply design and power loss optimization, and AC/DC converters manage the DC/DC power stage. The LDF stage is then responsible for the final output voltage and current control, combined with fault and safety detection.

The UCC3957M-2G4 is a low-power device, with power losses lower than 0.2 W. With its integrated functionality and advanced release, the device offers a wide range of high-powered applications, such as power supplies and charging systems. It also cooperates with external devices to enhance the efficiency and reliability of their operation. Furthermore, this device can be used in high-power applications, such as servers and renewable energy systems.

In conclusion, the UCC3957M-2G4 is a high-performance PMIC ideal for managing and optimizing battery life in a wide variety of applications, such as USB chargers, PDAs, MP3 players, portable medical equipment and miniature active-matrix OLED display backlighting. Its advanced features and functionality, such as thermal-shutdown and current-limit protections, and the integrated buck-boost controller, promise to reduce the system cost and extend battery life. Furthermore, this device is an efficient, reliable and sustainable energy management solution, providing an adjustable output voltage and current for precise regulation and control of outputs.

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