S-80818CLY-B-G

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Power management integrated circuit (PMIC) is a kind of system-level integrated circuit that integrates voltage regulator, power switch, DC-DC converter, battery charging, reset circuit and other functions. PMICs play the role of peripheral devices in a system, providing a complete power supply solution. PMICs can be divided into three categories: voltage regulators, power switches and supervisors. This article will discuss the application fields and working principle of S-80818CLY-B-G, which belongs to the supervisors category.

Application Field

S-80818CLY-B-G supervisors can be used in a variety of different applications, such as microprocessors and microcontrollers, digital signal processors, memories and logic circuits. It monitors the voltage level of the system and provides a reset signal when the voltage is too low or too high. It also provides an over-temperature protection function to protect the system from overheating. Moreover, it has a built-in delay circuit to prevent the reset signal from being generated too frequently.

S-80818CLY-B-G can also be used in low power applications. It has an ultra-low power consumption of just 300nA, making it ideal for battery-operated or energy-harvesting applications. Moreover, its wide operation voltage range from 2.2V to 5.5V makes it suitable for almost any application from the low voltage side.

Working Principle

S-80818CLY-B-G monitors the system voltage and sends out a reset signal when the voltage is too high or too low. It compares the voltage level with a preset voltage threshold. When it is above the upper threshold or below the lower threshold, the pin will output a reset signal. The reset signal length can be set using an on-chip 3-bit time-out counter. The time-out counter value is programmable by external resistors.

The S-80818CLY-B-G is equipped with an over-temperature protection function. It has a built-in temperature sensor and an over-temperature threshold voltage. When the temperature is above the set threshold, the pin will output a reset signal. The output reset signal length can also be programmed using external resistors. Additionally, the S-80818CLY-B-G is built-in with a programmable delay circuit which can help to prevent the system from resetting too frequently.

Conclusion

S-80818CLY-B-G belongs to supervisors PMIC category, and it provides a complete power supply solution. It monitors the voltage level of the system and sends out a reset signal when the voltage is too high or too low. It also provides an over-temperature protection to protect the system from overheating. Moreover, it has a built-in delay circuit to prevent the reset signal from being generated too frequently. It is suitable for microprocessors, microcontrollers, digital signal processors, memories and logic circuits, and its ultra-low power consumption and wide operating voltage range makes it an ideal choice for low power and energy-harvesting applications.

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