NCP1855FCCT1G

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NCP1855FCCT1G Application Field and Working Principle:

NCP1855FCCT1G is a type of PMIC (Power Management Integrated Circuit) Battery Chargers suitable for multiple applications. It has a high-efficiency boost topology that enables high current and low consumption of power. The NCP1855FCCT1G is a complete battery charger consisting of a main controller and a voltage reference. The main controller employs controlled current balancing and load line tracking to provide maximum efficiency. The voltage reference ensures that the battery is charged to a stable and safe level.

The NCP1855FCCT1G provides excellent temperature stability and long term reliability. Its operating temperature range is from -40°C to +85°C. The maximum input voltage is 15V and the maximum output current is 1000mA. It provides an adjustable voltage output range from 1.4V to 4.4V and is capable of charging single Li-Ion, Li-Polymer and NiMh battery packs. It also features a wide range of features including resistor programming and pull-up resistors for charging management, switching frequency and LED lighting control.

The working principle of NCP1855FCCT1G is based on the principle of buck-boost topology. This is a voltage step-up followed by a voltage step-down operation. The battery is first charged by supplying a current to the positive terminal of the battery, while the negative terminal is connected to ground. The boost regulator steps up the voltage and supplies it to the load. The buck regulator then steps down the voltage and charges the battery to the desired level. In this way, the battery gets charged while keeping the voltage regulated.

In addition to its charger functionality, NCP1855FCCT1G also provides current-limit protection and over-voltage protection. It also supports remote ON/OFF control and low voltage control. This battery charger can also be used for overflow protection, providing a safe and reliable solution for battery charging applications. The main advantage of using NCP1855FCCT1G is its wide operating temperature range, making it suitable for a variety of applications.

To summarize, NCP1855FCCT1G is a highly efficient PMIC Battery Chargers with excellent temperature stability and a wide range of features. It has a buck-boost topology for charging and also features current-limit protection, over-voltage protection, remote ON/OFF control and low voltage control. This makes it suitable for a variety of applications, including high current battery charging or overflow protection.

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