S-80920CNNB-G8QT2U

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PMIC (Power Management IC) refers to a chip that is capable of managing power flow, in a precise and efficient way, within an electronic unit. Supervisors are integrated circuits that monitor, supervise and protect a system against power supply abnormalities and varying supply voltages. The S-80920CNNB-G8QT2U is a fixed voltage supervisor IC which is used to protect multiple voltage levels in various applications. In order to ensure consistent monitoring and protection of various voltages, the circuit functions in a preset voltage range specified in the datasheet.

Applications

The S-80920CNNB-G8QT2U system is an ideal processor for protecting critical functions in a broad range of industrial and automotive applications. The IC is commonly used in monitoring +12V and -12V system power supplies in critical hardware appliances powered by CPUs, FPGAs and complex logic devices. In addition, the IC is also suitable for applications in industrial machinery, instrumentation, vehicles, aircraft and telecommunications equipment.

The IC begins monitoring the system when power is initially applied and remains active even when the system is in sleep mode. It is also capable of resetting the system when the supply voltage is abnormal and disabling power to the system during overvoltage conditions.

Working Principle

The S-80920CNNB-G8QT2U IC is an integrated, precision power-monitoring system that accurately monitors the voltage level at each power rail. This circuit supports two independent voltage supply levels and includes a voltage window detector, reset generator, and a power disable circuit. The IC has an adjustable and precision operating voltage range of +4.75V to +5.25V and -4.75V to -5.25V, and is capable of accurately monitoring the supply voltage between these two levels with a resolution of 1.12V and 2.25V.

The IC monitors the + and - voltage levels by sensing the voltage difference between the two levels. In normal operation, the two levels should remain within the preset range. However, if either of the levels stumbles outside of the preset range, the IC triggers a reset signal. This reset signals the system to enter reset mode, and shut off the power to the system.

In addition, the IC also includes a power disable circuit that shuts off the power to the system during abnormal supply voltage conditions. This ensures safe operation of the system in the event of an unexpected power disruption.

Conclusion

The S-80920CNNB-G8QT2U IC is an integrated, precision power-monitoring system that accurately monitors and protects the system against various supply voltages. The IC is used in a broad range of industrial and automotive applications, such as monitoring +12V and -12V system power supplies in critical hardware appliances powered by CPUs, FPGAs and complex logic devices. The voltage window detector of the IC can precisely monitor a supply voltage between the two preset voltage levels and is capable of resetting the system in case of an abnormal supply voltage. In addition, the IC also includes a power disable circuit that shuts off the power to the system during abnormal supply voltage conditions. The S-80920CNNB-G8QT2U makes an ideal processor for any industrial or automotive systems Critical protection needs.

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