ADM1816-5AKSZ-RL7 Integrated Circuits (ICs)

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Open Drain or Open Collector
Reset:	Active Low
Reset Timeout:	100 ms Minimum
Voltage - Threshold:	3.06V
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:	ADM1816

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ADM1816-5AKSZ-RL7 Application Field and Working Principle

The ADM1816-5AKSZ-RL7 is a programmable Supervisory Circuit (SVC) from Analog Devices Inc. It helps protect sensitive microprocessor systems from crashes or malfunctioning states due to negative factors like insufficient power supply, system compliance and/or integrity of the microprocessors.The ADM1816-5AKSZ-RL7 belongs to the PMIC – Supervisors family. It is an integrated circuit that provides multiple functions such as system reset, power-on reset, power-good/supervisory, zero-power/power guard, and others. This SVC also provides voltage and temperature monitoring, Brownout protection, a power watchdog timer and power supply voltage scaling.The primary function of the ADM1816-5AKSZ-RL7 is to monitor power supply, core voltage and temperature levels. If the voltage or temperature falls outside of a predetermined range then the SVC will initiate an external reset, aborting the current operation and resetting the system.The ADM1816-5AKSZ-RL7 is usable in a variety of applications such as laptop, tablet, embedded systems and medical equipment. It is also suitable for battery-operated systems as it is capable of providing robust protection across a wide range of power rails and is power efficient.The SVC is designed to be highly configurable and is easy to implement. It has an internal low-voltage detection circuit that can detect the power rail voltage and initiate a system reset. The SVC also features two integrated voltage comparators, two configurable power-on reset circuits and a temperature sensor interface for voltage and temperature monitoring. It also includes an integrated watchdog timer for system level reset.The ADM1816-5AKSZ-RL7 also offers a range of protection features such as a deterrent against inrush current, a watchdog timer, and reverse current detection. Inrush current protection prevents sustained overcurrent, protect the system from supply line disturbances and an open drain output for notification. The watchdog timer, which is adjustable in the range of 4ms-32s, triggers a system reset on a timeout condition, and the reverse current detection feature prevents reverse current throughout the power rail. This in turn, prevents the system from failing due to incorrect hot-swap operation.The ADM1816-5AKSZ-RL7 features a power-good/supervisory and zero-power/power guard architecture. The power-good/supervisory architecture helps ensure that the power supply is functional and within spec, while the zero-power/power guard helps ensure that there is no current consumption by the system during power off. This SVC also offers an open collector output for external system reset and a test-mode input for user-defined test conditions.The ADM1816-5AKSZ-RL7 is available in the small RoHS SOIC (Small Outline-Integrated Circuit) 8 package with a 0.150-inch pitch as used in most portable and embedded applications. This SVC is also available in TSOP-4, Gull-Wing and TDFN packages.In conclusion, the ADM1816-5AKSZ-RL7 is an ideal SVC for protecting microprocessor systems from negative events such as insufficient power supply, compliance issues, and microprocessor integrity. It offers a range of features such as voltage and temperature monitoring, reverse current detection, inrush current protection, watchdog timer, and power supply scaling. This SVC is built-in to a highly configurable and easy-to-implement platform with programmable reset thresholds and integrated open-drain outputs for user-defined requirements. Furthermore, it is available in a range of packages to suit most portable and embedded applications.

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