S-80818CLPF-B6DTFU

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Modern integrated circuits (ICs) are essential components in electronic systems. Used in a wide range of products, they provide multiple functions, ranging from complex logic and memory operations to simple data processing or power management. The S-80818CLPF-B6DTFU is a linear voltage supervisory IC targeted at microprocessors, digital and analog circuits, cellular phones, and other electronic systems. This paper provides an overview of the S-80818CLPF-B6DTFU\'s application field and working principle.

Application Field

The S-80818CLPF-B6DTFU is designed to detect supply voltage drops and overtemperature conditions in microprocessors, digital and analog circuits, cellular phones, and other electronic systems. It alerts the system microprocessor to prevent further operation if the supply voltage drops or the temperature becomes too high to protect the system components. Additionally, the IC can generate reset signals when two external resistor values form a voltage divider and monitor the voltages of VCC and VBAT. The IC can be used to supply power management and fault control in many products.

Working Principle

The S-80818CLPF-B6DTFU is a linear voltage supervisory IC. The IC is based on a voltage tolerant and precision voltage reference circuit comparing with the voltage of VCC and VBAT. The voltage of VCC is compared with an internally-fixed threshold voltage 2.05V. The voltage of VBAT is compared with two externally adjustable resistor values, which form a voltage divider and the voltage of VBAT is compared with the voltage got from VDIV. Under normal conditions, a reset signal is not generated. The Overtemperature signal is monitored via a threshold detector, which will activate when the ambient temperature is higher than its threshold of 150℃.

In general, the S-80818CLPF-B6DTFU monitors the supply voltage and temperature of the electronic systems and generates reset signals if there is overvoltage or overtemperature condition exists. This ensures that the system components are protected against potential damages.

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