S-80821CLPF-B6GTFG

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Power Management Integrated Circuits (PMICs) are essential components in all modern electronic systems. PMICs provide a reliable power supply to the microcontrollers, peripherals, and other integrated circuits (ICs) within the system, allowing them to operate and function as intended. One type of PMICs are known as supervisory ICs (Supervisors), and are used to monitor the power supply to ensure that it is within the design parameters. This article focuses on one particular supervisor, the S-80821CLPF-B6GTFG, and outlines its application field and working principle.

The S-80821CLPF-B6GTFG chip is a low voltage supervisor IC designed with a power consumption of less than 10µA @1.8V. It is specifically designed for battery-powered applications with a supply voltage range of 1.2V to 3.6V. It can operate with no load current, providing flexibility as it can be used in both low power and high power applications. Additionally, it is designed with a NMOS push-pull output, allowing it to deliver 350mA drive current and a 5ms cycle time.

The chip has multiple features that make it well suited for use in battery-powered applications, such as its programmable reset output, an active-low reset circuit and a backup function. The reset output allows the chip to reset the system at a predetermined voltage level, preventing the system from entering an unstable state. The active-low reset circuit also has a programmable output active-high, which allows for reset timing and delay control. To prevent unexpected power loss, the chip also comes with a backup function, which enables emergency operation if necessary.

The main purpose of the S-80821CLPF-B6GTFG is to monitor the power supply and detect any changes that occur. When the power supply falls below or rises above a predetermined level, the chip will output a signal to indicate the condition of the supply. This output can then be used to reset the system should that be required. The chip is also able to detect a rapid fall in the supply voltage, and can output a signal within 5ms from detection, allowing for fast and reliable power management.

Overall, the S-80821CLPF-B6GTFG is a reliable and power efficient chip suitable for use in battery-powered applications. Its low power consumption and fast response times make it an excellent choice for monitoring the power supply, ensuring that the system stays within its design parameters and remains stable.

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