AAT3683IVN-4.2-4-T1

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The AAT3683IVN-4.2-4-T1 is a power management integrated circuit (PMIC) battery charger targeted at applications powered by aLi-ion or Li-pol rechargeable batteries. It enables rapid, accurately controlled charging while providing protection to the battery. This PMIC consists of a high accuracy voltage regulator, current regulation and an extensive array of safety features. It is capable of charging single cell Li-Ion/Li-Pol batteries up to 4.2V in either linear or high current buck mode.

The charger comprises a wide input voltage range, from 4.5V to 25V, making it ideal for use in automotive infotainment systems and portable devices that require a higher input voltage, ensuring compatibility with the widest range of power sources.

The device integrates several safety features, such as over charging and over discharging, to ensure protection of the battery from damage and circuit shorts. It also features an input current limit, configurable via a resistor, to provide overload protection for the system, and an adjustable-delay timer to provide protection against accidental connection of a charger for an excessive time.

The AAT3683IVN-4.2-4-T1 has a wide range of adjustable temperature control, which is adjustable over a temperature range of 0°C to 85°C. This device can deliver a high charging current up to 4A and protects the battery from overcharging using controlled current regulation with over temperature warranty mechanism.

The AAT3683IVN-4.2-4-T1 works in three modes: constant voltage (CV) mode, constant current (CC) mode and pre-conditioning mode. In the CV (or trickle) mode, the charger delivers a constant voltage of 4.2V to the battery. In the CC mode, the charger is enabled to deliver a constant charging current through the output. The pre-conditioning mode enables the charger to recharge batteries that have dropped below their minimum voltage and get them ready to be charged normally. The device also supports an optional charge cycle complete signal, which can be used to indicate the battery has been fully charged.

In summary, the AAT3683IVN-4.2-4-T1 PMIC charger is a powerful, easy-to-use and cost-effective way to charge single cell Li-Ion/Li-Pol batteries. It can quickly and accurately charge at up to 4A and is provided with safety features such as temperature control and overcharging protection. It also features an adjustable-delay timer and a charge cycle complete signal. It is highly suitable for applications that necessitate the charging of rechargeable batteries such as automotive infotainment systems and portable devices.

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