NCP802SAN1T1

PMIC - Battery Management

The NCP802SAN1T1 is an application device within the battery management category of the Power Management Integrated Circuit (PMIC) family. A PMIC is an integrated circuit that consolidates and manages power related functions on a single device in a system. Battery management refers to the monitoring and control of charge and discharge of batteries as part of a larger system. NCP802SAN1T1 devices provide a practical, cost-effective solution for protection and charging control for lithium-ion and lithium-polymer batteries.

Overview of NCP802SAN1T1

The NCP802SAN1T1 is a shift register register-based Battery Management IC that provides ESD protection, over temperature protection and input current limiting. The device supports a single-cell Li-ion and Li-polymer battery system. It also supports various protection functions such as undervoltage lockout (UVLO), overvoltage protection (OVP), input over current limiting, and reverse current protection. The device provides four charge modes, voltage regulation, and current sensing. The NCP802SAN1T1 operates with input voltages from 4.0V to 28V, making it ideal for applications that require wide input voltage range.

Features & Benefits

The features and benefits of the NCP802SAN1T1 include:

• Compatible with single-cell Li-ion and Li-polymer batteries, providing a wide input voltage range (4.0V to 28V)
• Provides continuous protection from overvoltage, temperature and ESD events to the battery
• Enables up to four charge modes (fast, pre-charge, top-off, and balance), providing efficient and safe charging of the battery
• Features low quiescent current (2mA typical operating current) for a longer battery life
• Offers current sensing for charging and discharging, preventing the battery from damage due to over-charging, over-discharging and short-circuit

Applications & Working Principles

The NCP802SAN1T1 can be used in a variety of applications due to its high-efficiency, high-accuracy and high-reliability. The device is ideally suited for portable and consumer applications, such as laptops, tablets, digital cameras, and smartphones. It is also applicable for automated power management systems, such as solar chargers, battery-based products, and DC/DC charge controllers.

The device operates by providing continuous protection to the battery from over-voltage, temperature, and ESD events. It also enables four charge modes (fast, pre-charge, top-off, and balance) to ensure efficient and safe charging of the battery. The device features an input current-limiting circuit, which helps control the charging current to the battery and prevents it from over-charging and short-circuiting. The device is also equipped with a current sensing function, which monitors the charging and discharging status of the battery and prevents it from over-discharging.

Conclusion

The NCP802SAN1T1 is an application device within the Battery Management category in the PMIC family. The device provides efficient and safe charging of the battery, continuous protection from over-voltage, temperature, and ESD events. Its wide input voltage range (4.0V to 28V) makes it ideal for a variety of applications, such as laptops, tablets, digital cameras, and smartphones. Additionally, the device features an input current-limiting circuit and current sensing function, which prevents over-charging, over-discharging and short-circuiting.