AAT4687IJQ-1-T1

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AAT4687IJQ-1-T1 belongs to PMIC - Battery Management category, is a next-generation battery-protection IC, including charge, charge and gas protection circuit,DC/DC step-down circuit, high-degree integration, and low-voltage low-power responses to keep the battery safe during charging and discharging process.

The application field of AAT4687IJQ-1-T1 is wide, such as wireless charging power supply, battery pack protection and system-level battery management for cellular devices, BLDC motors, e-bikes, robots and other electronic applications. It can give various electronic devices and systems highly protected from overcharge and discharge or other abnormal states occurred during the charging or discharging process.

As for the working principle of AAT4687IJQ-1-T1, it consists of two parts, Charge/Gas Protection and Discharge Protection.

The Charge/Gas Protection part consists of three loops: pre-charge, fast charge and gas pressure maintaining loop. The pre-charge loop provides a controlled low-level current to the battery to speed up the charge process, while the fast charge loop provides maximum allowed current so as to fasten charging. The gas pressure maintaining loop helps to protect the battery from gas overpressure in case of unexpected overcharge.

The Discharge Protection part provides an over discharge protection, which would cut off the discharge if the charge exceeds the factory-pre-set threshold. It works with all Li-ion/ Li-Po battery type cells, allowing for optimal protection against excessive charge and discharge.

In conclusion, AAT4687IJQ-1-T1 is a highly integrated and efficient battery protection IC, which can provide a high-level protection to various electronic devices and systems. It has wide application field and can efficiently protect the battery from overcharge, discharge, and other abnormal states occurred during the charging or discharging process.

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