S-80918CNNB-G8NT2U

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PMIC – supervisors provide an integral part of chipset power delivery systems, making them one of the components essential in modern electronic designs. The S-80918CNNB-G8NT2U is a member of this family of supervisors, providing a highly integrated solution for monitoring power supplies of 3.3V to 5.5V systems. This can be utilized to enhance system reliability and extend battery life in a variety of applications such as consumer, industrial and automotive, including portable devices, sensor networks, electric appliances, and automotive electrification.

S-80918CNNB-G8NT2U Application Field

The S-80918CNNB-G8NT2U was designed with easy-to-use features to effectively protect against various problems that can be caused by improper power management. This protection includes monitoring and controlling the system voltage to prevent undervoltage or overvoltage conditions, which can potentially damage the IC or system. It also provides a wide range of features that enable it to be used in a variety of different applications. This supervisor can be used for applications where reliable system monitoring and power supply stability is required, such as portable devices, industrial and automotive electronics, and sensor networks.

In particular, this IC can be used in a variety of applications for motor vehicles. The S-80918CNNB-G8NT2U’s monitoring capabilities enable it to detect voltage fluctuations in the power supply and trigger a fault signal if the supply voltage falls below or rises above the set tolerance, which helps ensure system reliability. Additionally, this IC can aid in improving the efficiency of a vehicle’s powertrain and assist with maintaining a vehicle’s power budgeting. The S-80918CNNB-G8NT2U can also be used in automotive applications to protect against surges in voltage that could potentially damage electronic components.

S-80918CNNB-G8NT2U Working Principle

The S-80918CNNB-G8NT2U is a three-channel device, featuring two linear low-dropout (LDO) regulators and a supervisor circuit for detecting voltage abnormalities. The LDO regulators can provide a regulated voltage of up to 1.8V from an unregulated input voltage of up to 5.5V. The output voltages of the two regulators can be adjusted within a range of 0.9V to 1.8V. The supervisor circuit is designed to monitor voltage abnormalities from the two regulators. When an abnormality is detected, the supervisor will pull its output pin low and indicate a “fault” condition.

The S-80918CNNB-G8NT2U uses a unique architecture that allows it to track changes in the input voltage, as well as its own output voltage. This allows the device to accurately detect even small changes in the system voltage. The IC also features integrated thermal protection and a power-on reset generator that enables it to protect against unexpected power-up conditions.

In addition, this device also incorporates a watchdog timer that can be used to prevent system lock up or CPU hang up due to software anomalies. The watchdog timer is adjustable between 30ms and 8192ms, providing flexibility in system monitoring.

Overall, the S-80918CNNB-G8NT2U provides a highly-integrated solution for monitoring and controlling power systems ranging from 3.3V to 5.5V. Its robust features and monitoring capabilities help protect against system malfunctions to ensure system reliability and extend battery life in a wide range of applications.

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