ADM809ZAKSZ-REEL

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PMIC - Supervisors

ADM809ZAKSZ-REEL is a supervised reset IC, a type of power management integrated circuit (PMIC) that is used to monitor various supply voltages and reset the system when any monitored parameter falls outside the expected range.

application field

ADM809ZAKSZ-REEL is predominantly used in PC and portable electronic equipment, smartphones, industrial systems, servers, and gaming platforms. The device package options make them suitable for space-constrained applications.

The device is a flexible system supervisor, allowing monitoring of multiple power supply rail voltages with independent voltage thresholds and debounce delays, plus an adjustable reset to maintain proper system integrity.

Working principle

ADM809ZAKSZ-REEL works by monitoring multiple power supply voltages and detecting conditions when they are outside of their expected range. When an abnormality is detected, the device will initiate a reset signal in order to maintain proper system integrity.

The IC offers six independent voltage monitor comparators that can be used to monitor different supply voltage rails. The independent voltage thresholds and debounced delays can be configured to meet the user’s desired reset times. When any monitored parameter falls outside the expected range, a reset signal is initiated to reset the system.

The ADM809ZAKSZ-REEL also provides monitoring for manual resistor programmable reset timeout, in which the device will set a reset timeout duration. If the monitored voltage does not return to acceptable levels within the set duration, a reset will be initiated. The reset timeout can be customized to meet the user’s desired reset requirements.

The ADM809ZAKSZ-REEL also features an adjustable undervoltage lockout feature. This feature prevents the system from powering on when the voltage of one of the supply rails is below the set threshold. This can help prevent damage to components due to improper power supply voltages.

Finally, the device includes an overvoltage monitoring feature, which allows the user to monitor their supply rail voltage and set a maximum voltage limit. If the voltage of one of the supply rails exceeds this limit, the device will initiate a reset sequence.

In summary, the ADM809ZAKSZ-REEL is an advanced system supervisor IC designed to monitor multiple supply voltage rails and initiate a reset sequence when an abnormality is detected. The device provides a wide range of adjustable features to meet the user’s reset requirements, helping to maintain optimal system integrity.

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