ADM1817-R23AKS-RL7

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Push-Pull, Totem Pole
Reset:	Active High
Reset Timeout:	100 ms Minimum
Voltage - Threshold:	2.31V
Operating Temperature:	-40°C ~ 105°C (TA)
Mounting Type:	Surface Mount
Package / Case:	SC-70, SOT-323
Supplier Device Package:	SC-70-3
Base Part Number:	ADM1817

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ADM1817-R23AKS-RL7 Application Field and Working Principle Power management integrated circuits (PMICs) are a type of integrated circuit that is used to manage different processes in an electronic system. PMICs are used to regulate the power supply, monitor voltage levels, manage power resources, and convert power from one form to another. PMICs play an important role in protecting a system and its components from excessive voltage, current, and temperature.One type of PMIC is a supervisor IC or power-on reset (POR) IC. Supervisors are used to monitor the system’s power supplies and reset the system when necessary. Supervisors typically consist of a voltage monitor, timer, and reset control circuit.The ADM1817-R23AKS-RL7 is a supervisor IC from Analog Devices that is designed to monitor a single power supply and generate a reset output when the supply voltage falls below a predetermined threshold. The device has an adjustable reset threshold of 2.10V to 5.50V and a reset timeout period of 10 µs to 10.7 s. It is available in a 4-Pin LLP (leadless leadframe package) package.The ADM1817-R23AKS-RL7 operates by comparing its input voltage with a fixed reference voltage and determining if the input is below the defined threshold. If the input voltage is below the threshold, the device will start a timer and a reset will be issued once the timeout period expires. The reset can also be manually triggered by pulling the reset input low.The ADM1817-R23AKS-RL7 provides reliable reset assurance for systems requiring accurate voltage monitoring. It can be used in a variety of systems such as microprocessors, CPUs, automotive electronics, microcontrollers, and other embedded applications.The ADM1817-R23AKS-RL7 includes a built-in frequency-compensated voltage comparator and a reset generator. The comparator monitors the input voltage and compares it against a reference voltage. If the monitored voltage drops below the reference voltage, the comparator will trigger a reset pulse. The reset generator then generates a reset pulse that is sent to the reset output. The reset output will remain asserted until the reset condition is cleared and the reset timeout period expires. The device features an adjustable reset timeout period which can be set using external resistors and is designed to allow for different reset timeout periods across different product configurations. It also features an open drain active-low reset output and a push-pull active-low clear output that is used to manually clear the reset condition.In addition, the ADM1817-R23AKS-RL7 has a low operating current of 6µA and is capable of operating over a wide range of temperature, making it suitable for use in industrial, medical, and automotive applications.The ADM1817-R23AKS-RL7 supervisor IC from Analog Devices provides reliable reset assurance for systems requiring accurate voltage monitoring and is suitable for a wide range of applications. Its adjustable reset threshold and reset timeout period make it ideal for use in microprocessors, CPUs, microcontrollers, automotive electronics, and other embedded applications.

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