ADM1816-5AKSZ-REEL

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PMIC – Supervisors are specialized ICs that have the role of protecting both the microcontroller or DSP and the external circuitry from overcurrent and overvoltage. Devices of this type are designed with the purpose of detecting outlier signals like those created by voltages or currents significantly above or below the programmed threshold.ADM1816-5AKSZ-REEL is a precise Micro-Power Supervisory Circuit from the Analog Devices Incorporated series. It is a simple and easy-to-use single-chip microcontroller/DSP as well as external circuitry protection device. The methodology of this precise supervisory circuit helps to provide accurate monitoring of voltage conditions. It is a reliable solution for applications demanding precise voltage monitoring and remote-sensing over a wide range of supply voltages.This Supervisory Circuit is designed to protect microprocessors, DSPs, and peripheral chips from enduring or supplying unsafe voltage or current amounts. The device utilizes a low-power circuit that has the ability to accurately detect different voltage and current levels. ADM1816-5AKSZ-REEL has a reset that is reliable and independent of power supplies and microprocessor operating volatilities, settings and temperatures. Additionally, it has a very low supply current of typically 0.5 µA (typ) allowing it to be purposely used in battery-backed applications.ADM1816-5AKSZ-REEL has an input voltage range of 1.34 V to 5.5 V and a typical reset delay time of 35/38/60 ms. It is an active high circuit with reset output provided by N-channel MOSFET helping in applying an external load to the reset output. The reset assertion is also provided by Open drain N-Channel MOSFET. The severity of the reset output doesn’t depend on the application supply voltage.ADM1816-5AKSZ-REEL typically exhibits an accuracy of 2.5% for both reset and trip points located above 2 V meaning that a 2V trip point voltage can range from 1.95V to 2.05V. There is also a Power Monitor-Output (PMO) that monitors the VCCvoltage stating whether it is above or below the reset or trip point voltage, opening a window for further observation for the PMIC to provide timely alerts.This Supervisory Circuit generally finds applications in sectors demanding exact voltage protection and sensing. Applications such as digital cameras, LED displays, portable audio players, digital picture frames, in the car entertainment markets, industrial control systems, smart meters, and various security systems are all sectors that benefit from this unique, low-power, precise and reliable microcontroller/DSP as well as external circuitry protection device.In summary, ADM1816-5AKSZ-REEL is a reliable, accurate and low-power Supervisory Circuit offering microcontroller/DSP as well as external circuitry protection devices. It offers precise voltage detections, reset output and active high output. Additionally, it can be used for a wide range of supply voltages in applications like digital cameras, LED displays, portable audio players, digital picture frames and many more.

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