AAT3681AIJS-4.1-5-T1

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The AAT3681AIJS-4.1-5-T1 is a highly integrated power management IC (PMIC) and battery charger that fits a wide range of lithium-based battery applications. This device is designed to enable systems to charge, monitor, and protect Li-ion based battery packs, capable of supporting various battery chemistries, such as Li-ion, Li-polymer, LiFePO4, and LiCoO2.

The AAT3681AIJS-4.1-5-T1 operates in two modes, namely constant voltage (C) charging and constant current (ACC) mode. This PMIC contains two charge pumps, two low-dropout (LDO) regulators, an error detect circuit, and three logic control pins. It also features a trickle charge function, as well as over-temperature, over-voltage, and over-current protections. Its wide variety of features and flexibility allow for the design of robust, efficient, and safe battery charging systems.

The AAT3681AIJS-4.1-5-T1 charger is usually configured to the system\'s specification. This can include the selection of input voltage range, output voltage, current and range, termination voltage, and charge current. The charger is designed to start charging at the input voltage level and maintains the charging current according to the set levels as long as the voltage remains at a safe level. The charger also shuts off if it detects an over-voltage, over-temperature, or over-current condition, to ensure safety of the system.

The PMIC contains an error detect circuit that monitors the battery voltage and current. This circuit can alert the system either when the battery has reached its peak charging capacity or when it is no longer able to accept additional current. The system can then shut off the charge when this is detected, protecting the battery. The charger also features dual temperature compensation modes, allowing it to automatically adjust the termination voltage according to the temperature.

The AAT3681AIJS-4.1-5-T1 charger can be used in a wide range of portable devices. This device is useful in lithium-based battery applications, such as cell phones, mobile phones, PDA\'s, digital cameras, and other portable devices. It can also be used in automotive, industrial and military applications.

The AAT3681AIJS-4.1-5-T1 charger has a high integration and is easy to use, making it a valuable building block for various battery charging systems. This PMIC is ideal for efficiently and safely charging a wide range of Li-ion, Li-Polymer, LiFePO4, and LiCoO2 based battery systems.

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