S-8254AAJFT-TB-U

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The S-8254AAJFT-TB-U is a battery management component from ROHM Semiconductor specifically designed for use in automotive applications. It is a 4-channel integrated Li-ion/ Li-polymer battery charger IC, with a wide input voltage range (2.2 V to 6 V), high-efficiency (up to 92%) and low noise operation (3.3 μA quiescent current). This Battery Management component is with a wide range of features for improved protection during battery charging, and flexible charging profile control for improved charging operation and efficiency. It also offers superior temperature protection, over-charge/over-discharge protection, over-voltage/under-voltage protection, and short-circuit protection.

Application fields

The S-8254AAJFT-TB-U can be used in a variety of automotive applications, such as fuel cell vehicles, hybrid electric vehicles, electric vehicles, and energy storage systems. This battery management component works great for these applications due to its low noise operation, high-efficiency, and wide input voltage range. Additionally, this battery management component offers superior temperature protection, over-charge/over-discharge protection, and USB compatibility. It also offers a dedicated GPIO pin for an alarm output, sleep mode, and direct control from the host system if necessary.

Working Principle

The working principle of the S-8254AAJFT-TB-U follows the basic charging cycles of the Li-ion/ Li-polymer battery. Before the charging process can start, it is necessary to determine if the battery is in a good condition and safe to charge. This process is known as the safety check. This Battery Management component also makes sure that the charging process follows the proper charging cycle of Li-ion/ Li-polymer batteries to ensure a longer battery cycle life.

During the charging process, the S-8254AAJFT-TB-U constantly monitors the battery temperature and the charging current. This ensures that the proper amount of current is supplied to the battery while keeping the temperature regulated. The S-8254AAJFT-TB-U is equipped with temperature sensing and monitoring function, so it can detect if the temperature within the battery is too high. When this happens, the S-8254AAJFT-TB-U will adjust the current to maintain a safe temperature. If the temperature continues to rise, the S-8254AAJFT-TB-U will shut off the current supply.

When the battery is fully charged, the S-8254AAJFT-TB-U will automatically switch to a trickle charge mode. This mode slowly decreases the amount of current supplied to the battery, gradually extending the battery life. The S-8254AAJFT-TB-U also offers other features such as over-voltage and over-discharge protection. This ensures that the battery is safely charged and prevented from potential damage.

Conclusion

The S-8254AAJFT-TB-U is a battery management component from ROHM Semiconductor specifically designed for use in automotive applications. Its wide input voltage range, high-efficiency, and low noise operation make it an ideal choice for these applications. It also offers superior temperature protection, over-voltage/under-voltage protection, and over-charge/over-discharge protection. The S-8254AAJFT-TB-U also follows the proper charging cycles of the Li-ion/ Li-polymer battery to ensure a longer battery cycle life and safe charging process. This battery management component is the perfect choice for automotive applications that require superior protection and efficient charging.

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