S-8205BAZ-TCT1U Integrated Circuits (ICs)

PMIC - Battery Management

The S-8205BAZ-TCT1U is a highly efficient, dedicated low-dropout (LDO) linear regulator that is specifically designed to address the growing needs of the battery management market. It offers an ultra-low quiescent current of 20uA, up to 40V operation and 3% regulation accuracy, allowing it to efficiently meet the rigorous requirements of battery management field. The S-8205BAZ-TCT1U also provides excellent tolerance of capacitive loads, power sequencing and input voltage ripple.

The S-8205BAZ-TCT1U is built on a BiCMOS process and optimized for low standby power to enable long-term battery life. Its integrated power management is designed to save board space and improve design flexibility. The device is pre-programmed with several parameter settings, so no external resistors are needed. This feature simplifies designs, reduces system size, and improves design efficiency.

The Application of the S-8205BAZ-TCT1U

The application of the S-8205BAZ-TCT1U mainly lies in the battery management system field. This device is used to precisely control the voltage supply of battery cells, batteries and dual batteries. The main advantages of using S-8205BAZ-TCT1U are low power output, excellent voltage accuracy and thermal stability, high capacitive load tolerance and low internal resistance. Hence, it can be used for high efficiency and low power consumption applications, for example in mobile devices, smart meters, wearables, battery management and other applications.

Working Principle of the S-8205BAZ-TCT1U

The S-8205BAZ-TCT1U has two operating modes. In the constant current mode, the device will maintain a constant output voltage regardless of input voltage variations, thus providing excellent voltage stability. In the constant voltage mode, the device will keep the output voltage within a set limit to protect against overload. This helps to protect the device and its connected load against any form of possible damage caused by excessive input voltage.

At the heart of the S-8205BAZ-TCT1U, lies a cascade compensation network, consisting of an error amplifier, voltage reference and a feedback divider. This allows hysteresis margin and helps to reduce output voltage ripple. The device also includes an integrated thermal protection circuit to detect any excessive temperature and shut down the device to prevent damages.

In addition, the S-8205BAZ-TCT1U also features two advanced protection functions, including Reverse-Current Protection (RCP) and Dual-Mode Over-Voltage Protection (DOP). The RCP guards against reverse current flow from the output to the input and prevents a short circuit from forming, while the DOP guards against over-voltage conditions, protecting the connected system from possible harm.

Conclusion

In conclusion, the S-8205BAZ-TCT1U is a highly efficient, dedicated low-dropout (LDO) linear regulator specifically designed to address the needs of the battery management market. It offers excellent voltage accuracy and thermal stability, high capacitive load tolerance and low internal resistance. It is pre-programmed with several parameter settings, so no external resistors are needed. With its wide range of features and benefits, the S-8205BAZ-TCT1U is an ideal choice for various battery management applications.