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PMIC - Supervisors

The LM8364BALMF30/NOPB is an advanced microprocessor supervisor with several useful features. This low-power device is ideal for applications where battery-powered, small footprint supervision is desired. The device monitors important signals and resets the microprocessor or other systems when the signals go outside the predetermined ranges. This can increase the reliability of the overall system by preventing its operation under undesired conditions.

Application Field

The LM8364BALMF30/NOPB is typically used in battery powered systems, telecom systems, and handheld portable devices. This device is ideal for use in applications such as cellular phones, pagers, remote alarms, security systems, and medical equipment. It also works well in network applications such as routers, switches, and access points. The device works best in low voltage applications and can provide power-down reset signals for embedded systems.

The LM8364BALMF30/NOPB is a cost effective solution for adding reliability and safety to a system. It is capable of monitoring supply voltage, power supply connections, and battery voltage. The device can be used to detect short circuits, under-voltage, and over-voltage conditions. It can be used to detect fault conditions in power supplies and also to control circuit breaker and/or switch disconnects for optimized power management.

Working Principle

The LM8364BALMF30/NOPB has two basic modes of operation – Watchdog or Supervisor mode.

In Watchdog mode, the device monitors the status of an external circuit, such as the microprocessor, through the use of a timer. If the circuit fails to send a signal to the device within a predetermined period of time, the device will generate a reset signal. The reset will force the microprocessor or other system to reinitialize and start again. This helps prevent unintended operation and provides a safer environment for the system.

In Supervisor mode, the device continuously monitors the state of several external signals. If any of the signals stray outside of the predetermined ranges, a reset signal is generated. This feature can help safeguard a system if the voltage or other signals drop to unsafe levels.

The LM8364BALMF30/NOPB is an ideal device for applications where low-power operation and fast reset are desired. With its low-voltage operation and watchdog/supervisor functions, this device can improve system reliability and safety.

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