ADM809SAKSZ-REEL7

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Push-Pull, Totem Pole
Reset:	Active Low
Reset Timeout:	140 ms Minimum
Voltage - Threshold:	2.93V
Operating Temperature:	-40°C ~ 125°C (TA)
Mounting Type:	Surface Mount
Package / Case:	SC-70, SOT-323
Supplier Device Package:	SC-70-3
Base Part Number:	ADM809

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ADM809SAKSZ-REEL7: Application Field and Working PrincipleADM809SAKSZ-REEL7 is one of the most popular types of PMIC – Supervisors, which consist of an analog supervisor, a watchdog timer and a voltage supervisor. The device is used in a wide range of applications, including automotive electronics, consumer electronics, industrial electronics and communication systems.Analog SupervisorIn the analog supervisor, an accurate voltage reference and two series-connected comparators are used to detect out-of-tolerance conditions. This is achieved by comparing the input voltage against the reference voltage and then taking the appropriate action. The ADM809SAKSZ-REEL7 can provide up to six protection points, allowing it to monitor multiple input voltages.Watchdog TimerThe watchdog timer is used to detect faults in the system and reset it if there is an error. The watchdog timer has an adjustable timeout period, which can be set from 1 ms to 14 seconds. The timer detects any abnormal conditions in the system and it is able to reset the system if the timeout period is exceeded. This is especially important in industrial applications when the system must be kept running at all times.Voltage SupervisorThe voltage supervisor is used to monitor the voltage levels of the system and to ensure that input and output voltages remain within acceptable limits. This is done by comparing the input and output voltages to the reference voltage, and then taking the appropriate action if the voltage is out of tolerance. If the voltage is out of range, the voltage supervisor will trigger a reset or interrupt.ConclusionAs one of the most popular types of PMIC – Supervisors, the ADM809SAKSZ-REEL7 is suitable for a wide range of applications. It has an analog supervisor and a watchdog timer, as well as a voltage supervisor, all of which are designed to detect and correct out-of-tolerance conditions. By using this device, it is possible to increase the reliability of a system and ensure that it stays operational at all times.

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