ADM8322WC46ARJZR7

Series:	Automotive
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Watchdog Circuit
Number of Voltages Monitored:	1
Output:	Open Drain, Push-Pull
Reset:	Active High/Active Low
Reset Timeout:	140 ms Minimum
Voltage - Threshold:	4.63V
Operating Temperature:	-40°C ~ 125°C (TA)
Mounting Type:	Surface Mount
Package / Case:	SC-74A, SOT-753
Supplier Device Package:	SOT-23-5
Base Part Number:	ADM8322

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ADM8322WC46ARJZR7 application field and working principle

ADM8322WC46ARJZR7 is a 3.3V supervisor circuit IC which belongs to PMIC (Power Management Integrated Circuit) - Supervisors. It is mainly used in Microcontroller- or Microprocessor-based systems. Its working principle is to monitor the VCC (power supply) voltage and ensure that the microcontroller/processor is not operated outside its safe operating conditions.

Overview

ADM8322WC46ARJZR7 is an integrated circuit manufactured by Analog Devices that is used as a reset supervisor for microcontroller- or microprocessor-based systems. It monitors the power supply voltage and produces a reset pulse when the power supply voltage goes below a predetermined value. Additionally, it has a built-in watchdog timer to allow the system to be periodically reset by an external device.

Application Field

ADM8322WC46ARJZR7 is primarily used as a reset supervisor for microcontroller- or microprocessor-based systems. It is used in applications that require an extended hold-on period with a fixed threshold after power-up. Examples of applications include power-up sequencing, power-down sequencing, system monitoring and resetting, protection of memory and data, and security and authentication.

Working Principle

ADM8322WC46ARJZR7 works by monitoring the power supply voltage and producing a reset pulse when the power supply voltage goes below a predetermined value. The device has an adjustable threshold, allowing the user to select the desired reset voltage. The reset pulse has an adjustable width, allowing the user to select the desired reset duration. Additionally, there is a built-in watchdog timer which allows the system to be periodically reset by an external device.The device also has an active-low reset output and an active-low watchdog output. The active-low reset output is used to detect power failures and reset the microcontroller/processor. The active-low watchdog output is used to detect reset failures and to reset the system.

Conclusion

ADM8322WC46ARJZR7 is an integrated circuit used in microcontroller- or microprocessor-based systems as a reset supervisor. It monitors the power supply voltage and produces a reset pulse when the power supply voltage goes below a predetermined value. Additionally, it has a built-in watchdog timer that allows the system to be periodically reset by an external device.

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