SC820ULTRT

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The SC820ULTRT is a type of power management integrated circuit (PMIC) belonging to battery chargers, used as power source to charge and protect the batteries of electronic devices. It is a single-output, step up, constantly monitored and internally compensated switching regulator that packs many features and possibilities.

The major features of the SC820ULTRT are its wide input voltage range, high efficiency and accuracy. It provides advanced power control while protecting the battery from overcharging, over discharging and thermal problem, and preventing reverse current flow. It supports low quiescent current, low Standby Power and high power efficiency up to 96%. It also has three configurable resistors that enable the user to adjust the output voltage by merely changing the inputs. It has a wide voltage range which varies from 2.5V to 6.5V.

The application field of the SC820ULTRT is vast, since it has a broad variety of functions that facilitate the power management tasks. It is particularly used for solar and car battery charging applications, like mobile phones, laptop, car navigation systems and portable audio equipment. Also, it can be used in the secondary battery charging power supply of electronic products powered on Lithium-ion battery.

In terms of its working principle, the SC820ULTRT utilizes a constant current/constant voltage (CC/CV) charging algorithm, as well as a true 0V charging voltage detection, which indicates that the battery is fully charged and the charging must be stopped accordingly. It provides a high power buck-boost synchronous rectification buck integrated circuit, with high efficiency and low quiescent current. This synchronous rectification includes technologies such as Soft Start, Charge and Discharge monitoring, Over Temperature Protection, as well as Reverse Current Protection.

The SC820ULTRT is efficient and versatile, allowing an optimal control for charge and for discharge by utilizing an integrated 0 V voltage detection, cutting off the load under rare voltage plunges or disconnecting the power supply when an overvoltage issue occurs. It also provides a Triple Current Protection, which limits the input current to safe levels, providing an protection to the battery from overcurrent. Furthermore, the SC820ULTRT is designed in a low power circuit system which can decrease the power consumption and temperature rise.

Since the SC820ULTRT has a variety of features and functions, it is used in a wide array of applications, like automotive applications, audio systems and portable devices. Its unique features aid in regulating and controlling the battery\'s charging, protecting it from overcharging, over discharging, reverse current, and other potentially harmful conditions. Furthermore, its adjustable voltage and current ratings, as well as its wide input voltage range, make it suitable for various conditions. Therefore, the SC820ULTRT is a widely used PMIC belonging to battery chargers.

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