ADM8321WAX30ARJZR7 Integrated Circuits (ICs)

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Introduction

The ADM8321WAX30ARJZR7 is a member of Analog Device’s family of PMIC supervisors. This device is the third generation of the company’s Supervisory Sorcery System, a series of integrated power management and supervisor ICs. This system features on-die power management that reduce component count, cost, and area on the board layout.

Application Field

The ADM8321WAX30ARJZR7 is designed to operate in applications that need to monitor power such as fire alarm or residential alarm systems, access control systems, security systems, HVAC systems, white goods, medical equipment, industrial controllers, access control systems and microcomputer boards. It is ideal for use in applications that require low power consumption, such as Wearables, IoT and other embedded applications.

The ADM8321WAX30ARJZR7 provides many of the features that are needed in today’s systems, including system power status monitoring, voltage drop protection, adjustable power-on reset threshold, system clock monitoring, on-chip linear regulator and undervoltage lockout. The device can also support digital power supply sequencing and remote sensing.

Working Principle

The ADM8321WAX30ARJZR7 performs power management on three power paths. When power is supplied to the device, it will start-up and then monitor the power inputs for any sudden drop in the supply voltage. If the supply voltage drops below the adjustable threshold, it will reset the system and ensure a proper power-on sequence. The device is also capable of monitoring the system clock to ensure that it is synchronised with the processor.

The ADM8321WAX30ARJZR7 also provides voltage drop protection. This feature helps to protect the system against sudden voltage drops and helps to reduce overall system breakdowns. The device also contains a linear regulator to ensure that the system supply voltage is within the required tolerance.

The device also includes an adjustable power-on reset voltage threshold. This feature allows the user to adjust the power-on reset voltage according to the power conditions of the system. The device also supports digital power sequencing and remote sensing to further help reduce system downtime.

The ADM8321WAX30ARJZR7 also features an on-chip watchdog timer. This timer can be used to reset the system if it does not receive any valid clock pulses for a certain period of time. The watchdog timer can help reduce system downtime and help prevent system crashes due to runaway code.

Conclusion

The ADM8321WAX30ARJZR7 is a PMIC supervisors with a variety of features to monitor, protect and regulate the power supply. It is ideally suited for applications that require low power consumption due to its high efficiency and on-die power management. The device has a number of features such as voltage drop protection, adjustable power-on reset threshold, system clock monitoring, on-chip linear regulator and watchdog timer that are intended to help reduce system downtime and improve system reliability and stability.

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