S-80831CLUA-B6QT2G

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PMIC (Power Management IC), also known as power supply IC, is the core component for power management in electronic systems. Power management Integrated Circuits (PMICs) play an important role in controlling the voltage and current of direct current (DC) on a power supply line and converting the AC-DC energy into usable direct current. The S-80831CLUA-B6QT2G is a PMIC Supervisor specifically designed for voltage detection applications, state machine logic with event control, and status flag register logic. The features of this product are designed to facilitate the design of power-on reset (POR) logic, system reset logic and manual reset logic.

Application Field of the S-80831CLUA-B6QT2G

The S-80831CLUA-B6QT2G is a high-performance voltage detection supervisor with a threshold voltage accuracy of ±2.5%, a detection voltage range from 10V to 80V and outputs to power drain and standby circuitry which are independently responsive, making it ideal for use in wide band gap power supply applications, particularly in automotive systems. This supervisor can detect imbalance of primary-auxiliary power and automatically control the power on/off switching or analog power/output characteristics of a system.

It can handle a wide range of applications including battery-driven or solar-powered systems, automotive electronics requiring voltage detection, standby processors and other power management applications. For example, an automotive system utilizing the S-80831CLUA-B6QT2G supervisor would be capable of automatically switching the 12V power supply to an auxiliary power supply at low voltage while the car is inactive and resuming the 12V supply when the car is operational. This contributes to improved fuel efficiency by reducing the number of times the car must switch between auxiliary and main power.

Working Principle of the S-80831CLUA-B6QT2G

The S-80831CLUA-B6QT2G makes use of internal circuit structures and logic to detect and respond to voltage changes. It comprises a Window Comparator, a POR Circuit, an INTERNAL CLOCK, a Status Flag Register and a Reset Output that facilitate the design of reset logic in portable and/or battery-driven applications. The Window Comparator detects the voltage and compares it to the internally programmed trip points in order to generate a Warning Flag. The Warning Flag then triggers the POR Circuit to enable the power ON and OFF logic. When theINTERVENTIONAL CLOCK detects a low voltage, it will cause the PORCircuit to close, which will then generate the reset flag. This flag notifies the system of the low voltage condition, thus allowing the system to act accordingly.

The Status Flag Register contains the System Reset Flag, the Manual Reset Flag and the Warning Flag. These Flags are used to report the power status of the system to an external system. The System Reset Flag is used to report the normal power status of the system, the Manual Reset Flag to report a forced reset, and the Warning Flag to report any voltage anomalies.

Finally, the Reset Output can be used to help manage the power up and power down sequence for the system. It will output a low level signal when there is an under-voltage condition in order to reset the system. When there is a normal voltage condition, the Reset Output will output a high level signal.

Conclusion

The S-80831CLUA-B6QT2G is a versatile, high performance, low power consumption “power supervisor” designed for a variety of applications that require voltage and power monitoring. The Window Comparator, POR Circuit, INTERNAL CLOCK, and Status Flag Register support a variety of voltage detection and reset logic capabilities while the Reset Output provides the desired reset signals in order to control the power up and power down sequence and maintain desired system function. This makes the S-80831CLUA-B6QT2G an ideal choice for systems that need to monitor, detect and respond to various voltage measurements including primary-auxiliary imbalance and undervoltage conditions.

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