S-8204BAX-TCT1U

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The S-8204BAX-TCT1U is an advanced performance multi-chemistry battery charge management integrated circuit, mainly used in the portable device market. It is an important component of a battery-powered system, providing comprehensive protection and accurate control.

The main features of this chip are as follows:

• Provides linear charge current control
• Monitors battery voltage and temperature
• Adopts pulse frequency modulation (PFM) operation mode
• Integrated N-channel MOSFETs for over-current protection
• Integrated input power FETs for overload protection
• Programmable charge preconditioning and pulse top-off periods

The battery charge management chip of S-8204BAX-TCT1U belongs to PMIC - Battery Management. It adopts advanced power management technology, with enhanced accuracy and power efficiency, making it ideal for portable devices or mobile devices. It is designed to provide the following protection and shutdown functions:

• Over voltage protection
• Under voltage protection
• Over current protection
• Over temperature protection

The working principle of the S-8204BAX-TCT1U chip starts with the pulse frequency modulation (PFM) mode. In PFM mode, the device periodically monitors the input voltage and the battery voltage, and then compares the two values to determine the current condition. For example, if the input voltage is higher than the battery voltage, the battery is considered to be full and needs to be stopped. On the other hand, if the input voltage is lower than the battery voltage, the battery is considered to be in charge and needs to be enabled.

When the battery is in charging mode, the S-88204BAX-TCT1U chip provides linear charge current control by periodically evaluating the voltage. The device can detect the battery temperature, and then adjust the charging current dynamically according to the temperature. This eliminates the danger of overcharging caused by excessive heat, shortens the charging time, and prolongs the battery life. The chip also supports pre-conditioning charging and pulse top-off feature.

Apart from providing battery charging and protection, the S-88204BAX-TCT1U chip also integrates N-channel MOSFETs and input power FETs. These FETs are connected to the over-current and overload protection circuits to protect the battery from being damaged by excessive current or higher input voltage. This enhances the safety of the battery powering system.

In conclusion, the S-88204BAX-TCT1U chip is a state-of-the-art battery charge management integrated circuit. It is designed to provide precise control and protection of portable devices or mobile devices, and is an ideal component for a battery-powered system. With advanced power managing technology, it can ensure a longer battery life, more safety and increased power efficiency.

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