S-80941CNNB-G9BT2U

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PMIC - Supervisors Explained

PMIC - Supervisors, or Power Management Integrated Circuits Supervisors, are electronic devices that monitor, detect and regulate the various power supply levels and voltages in any given system. They are usually used in high-voltage applications where safety is of utmost importance and costs must be kept to a minimum. The S-80941CNNB-G9BT2U is an example of a PMIC Supervisor, and it is often used in applications ranging from automotive and aviation, to industrial and consumer electronics.

Overview of the S-80941CNNB-G9BT2U

The S-80941CNNB-G9BT2U is a low-profile ultra-low power PMIC Supervisor, developed and manufactured by Macronix. This device is designed to provide comprehensive support for and protection of a wide range of converters, switches and voltage sources. The device offers both analog and digital control, and it is capable of monitoring and suppressing output overvoltage, as well as undervoltage.

Key Features of the S-80941CNNB-G9BT2U

The S-80941CNNB-G9BT2U has multiple features that make it suitable for a range of applications. Firstly, it has a wide input voltage range (3V to 28V) and it offers extremely accurate (within 0.2%) monitoring of input voltages. Moreover, it has a low quiescent current (only 24uA typical) which makes it suitable for use in battery operated applications. It also has a wide adjustable output voltage range (3V to 28V), and a programmable output voltage accuracy of 0.4%. The device also provides adjustable over-voltage protection and under-voltage lockout protection, which is adjustable within 1% of the desired voltage.

Advantages of Using a PMIC Supervisor

The main advantage of using a PMIC Supervisor is that it can protect a system\'s circuitry from dangerous output overvoltage and undervoltage, which can often lead to system-wide damage and even permanent failure. Furthermore, PMIC Supervisors can provide precise voltage control, allowing the user to set the exact voltage the system needs. This precision often leads to longer life spans for the system and its components. Finally, PMIC Supervisors use very little power and are extremely low-profile, making them ideal for use in space- and power-constrained applications.

Applications of the S-80941CNNB-G9BT2U

The S-80941CNNB-G9BT2U has a wide array of potential applications, thanks to its features, advantages and low cost. It is particularly suited for automotive and aviation applications, as the need for precise voltage controls and overvoltage/undervoltage protection is often greater in these industries. Additionally, its low quiescent current makes it ideal for use in battery operated applications, such as consumer electronics and embedded systems. The S-80941CNNB-G9BT2U is also suitable for industrial applications, due to its precision and wide adjustable ranges.

Working Principle of the S-80941CNNB-G9BT2U

The S-80941CNNB-G9BT2U has two main components- the main circuit and the reference. The main circuit contains the monitoring, controlling and regulating aspects of the device, while the reference provides a reference voltage for the output voltage. The device is controlled by an internal Voltage Supervisor (VSP) block, which monitors and compares the input voltage with a reference voltage. In case of undervoltage or overvoltage, the VSP will take action and adjust the output voltage accordingly. Additionally, the output voltage can also be adjusted manually, by selecting the desired voltage from the on-chip menu.

Conclusion

The S-80941CNNB-G9BT2U is a robust and reliable PMIC Supervisor, designed to provide comprehensive monitoring and protection of a wide range of converters, switches and voltage sources. It has a wide adjustable range and very low power consumption, making it suitable for use in a variety of applications, including automotive and aviation, as well as consumer and industrial electronics.

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