S-80838CNY-B2-U

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The S-80838CNY-B2-U is a small 4mm x 4mm QFN package power management integrated circuit (PMIC) designed to provide efficient power supply to a range of electronic devices. It is also known as a supervisor chip for its ability to control the power and order of components in a circuit. This article takes a closer look at the application field and working principle of the S-80838CNY-B2-U.

Applications

The S-80838CNY-B2-U can be used in a variety of applications to provide power management, such as smartphones, tablets, digital televisions, set-top boxes and other low-power mobile devices. It features 12V input and 3.3V output, and is designed to reduce power supply noise and power supply ripple to improve system performance and reduce electromagnetic interference (EMI). The chip provides multiple monitoring functions, including inrush current, over current, over voltage and power failure, which provide an excellent driver reliability. Additionally, the chip can function as a system reset or system shutdown agent when the voltage of the power supply is abnormal, helping to protect electronic devices.

Working Principle

The S-80838CNY-B2-U is designed to provide an extremely low power supply noise and power supply ripple, while maintaining a stable output voltage. The chip\'s main components are a main regulator, a voltage detector, and a reset generator. The main regulator is responsible for the steady voltage supply to the outputs, while the voltage detector monitors and controls the voltage over a range of 1.5V to 5.5V. When this voltage falls outside the specified range, the reset generator sends an interrupt signal to indicate the low voltage condition and help protect the system from power failure.

The S-80838CNY-B2-U also includes a power-on reset function (PB). This function will reset the system automatically when the power is applied, helping to ensure a safe start-up of the electronic device. The chip also has a low drop-out regulator which helps in suppressing interference and reducing the overall power consumption. Coupled with other features like a watchdog monitor, thermal shutdown switch and frequency monitor, the S-80838CNY-B2-U can ensure total protection and stability while the device is running.

Conclusion

In conclusion, the S-80838CNY-B2-U is a power management integrated circuit designed to provide efficient power supply to low-power devices. It is also known as a supervisor chip for its ability to control the power and sequence of components in a circuit. The chip features 12V input and 3.3V output, and is designed to reduce power supply noise and power supply ripple to improve system performance and reduce EMI. Additionally, the chip can function as a system reset or system shutdown agent when the voltage of the power supply is abnormal, helping to protect electronic devices. With its various features and functions, the S-80838CNY-B2-U is a reliable and cost-effective solution for power management applications.

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