S-8205AAC-TCT1U

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The S-8205AAC-TCT1U is a system power management integrated circuit (PMIC) specially designed for use in battery-powered applications, such as electronic apparatuses, fitness tracking devices and wireless devices. This PMIC supports single-cell Lithium- ion/polymer batteries with highly-integrated protection and power-management functions that strengthen system performance and extend battery lifetime.

Key features of the S-8205AAC-TCT1U include a single-buck converter, 3- channel current-sensing circuit, advanced battery protection, a wide operating temperature range (−40 °C to 85 °C), and an integrated safety timer. The device also has an integrated I2C slave port and eight different input voltage options.

Application Field of S-8205AAC-TCT1U

The S-8205AAC-TCT1U is suitable for use in a wide range of battery-powered applications. It can be used to power gadgets with low to medium power consumption like fitness trackers, smart-lock systems, medical analyzers, environment monitoring devices, fuel cells and other remote control systems. It is also well-suited to power mobile devices such as smartphones, tablet PCs, and portable media players.

Working Principle of S-8205AAC-TCT1U

The S-8205AAC-TCT1U integrates two high-efficiency, low-dropout (LDO) and one buck converters. The LDOs are used to produce the voltage for system core logic and I/O, while the buck converter is used to step down voltage to generate secondary power supplies. An additional feature of the S-8205AAC-TCT1U is its ability to quickly resume output supply when power-on reset (POR) occurs, due to its low inrush current.

The device also integrates a 3-channel current-sensing circuit, which can detect the output current, charge current, and discharge current profiles. This current-sensing circuit enables the system to monitor the battery status and protect it from overcharge and undercharge. In addition, the device has an integrated safety timer circuit, which cycles through the system\'s loads, preventing destructive behaviors in overcurrent conditions.

To support high-performance operations and energy efficiency, the S-8205AAC-TCT1U integrates temperature-control functions for both the PMIC and the battery. Its temperature switch circuit generates a signal to trigger the external thermal protection circuit (TCP). The device also supports up to 10A of output current, enabling the system to be powered continuously without any interruptions. Finally, the S-8205AAC-TCT1U supports both USB and AC adapters, as well as an adjustable output voltage.

Conclusion

The S-8205AAC-TCT1U is a high-performance power management integrated circuit (PMIC) developed to provide reliable power supply to battery-powered applications. It integrates two high-efficiency LDOs and one buck converters, 3-channel current-sensing circuit and safety timer functions to enable stable and efficient power supply. It also supports an I2C slave port and temperature switch circuit, allowing for efficient heat management in a variety of applications. With its low inrush current, overcurrent protection, wide temperature range and high output current, the S-8205AAC-TCT1U is an ideal choice for battery-powered projects.

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