ADM12914-2ARQZ

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ADM12914-2ARQZ is a standard system-level supervisor integrated circuit (IC) device from Analog Devices. It is part of the Supervisors category of PMICs, or Power Management Integrated Circuits.

Supervisors are electronic devices that are used for monitoring and controlling various aspects of a system\'s operations. They are designed to provide robust system surveillance, prevent damage to critical components or circuits, and protect against unauthorized access or changes to important parameters. The main function of the ADM12914-2ARQZ is to serve as a system monitor and supervisor. It prevents damage to components or circuits due to voltage or current overshoots.

The ADM12914-2ARQZ is a single-supply operation supervisor IC and features a programmable threshold of 2.4V – 5V. The device is available in a compact ultra-small thin SOT-23-3 package, making it suitable for various mobile applications and other space or weight-limited designs.

The main feature of the ADM12914-2ARQZ is its reset delay capability, which ensures that system power-up sequences are performed in the correct order and that there is sufficient time to allow the system to stabilize after reset is de-asserted. After a given reset delay, the IC will monitor proper supply voltage operation and reset if a fault occurs. This monitoring feature is important to ensure that the system has the proper protection during power-up or power-down operations.

The watchdog feature included in the ADM12914-2ARQZ checks for system activity and can be used as a reset pulse distributor in both active-low and active-high reset modes. The watchdog’s timeout period is programmable from 1.9ms to 10sec, ensuring enough time to diagnose and troubleshoot any system issues that may arise.

The ADM12914-2ARQZ also provides both a manual reset pin (MR) and a programmable manual reset event interval. This interval can be configured to last from 1ms to 10min, improving system reliability by providing an additional layer of manual reset control.

In terms of power management, the ADM12914-2ARQZ has a low power-off current feature, which reduces power consumption in standby mode. The low power-off current threshold is 20nA with a wide operating voltage range, making the device suitable for use in battery-powered applications.

In summary, the ADM12914-2ARQZ is a versatile and reliable system-level supervisor IC. It provides strong system protection and surveillance and can help address a variety of system-level problems. Its features, such as reset delay and manual reset capability, provide additional control and flexibility for integrated systems. Additionally, its low power-off current feature ensures efficient power management for mobile applications.

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