ADM1818-10AKS-RL7

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PMIC (Power Management Integrated Circuit) is a circuit that integrates more than one power management functions in a single integrated circuit (IC). The PMICs are broadly classified into three categories: DC-DC, LDOs, and Supervisors. The ADM1818-10AKS-RL7 belongs to the Supervisors category and it is a low-cost, low-power reset and power-on reset supervisor for monitoring voltage and temperature conditions in applications with dual-voltage supplies.

Application Field of ADM1818-10AKS-RL7

The ADM1818-10AKS-RL7 is specifically designed for Systems that need to monitor their power supply to guarantee safe operation. Additionally, this supervisor is suitable for applications where power sequencing requires that a predetermined set of power supply voltages are applied before allowing the system to operate. Examples of such applications include servers, PCs, and gaming consoles. The ADM1818-10AKS-RL7 is also suitable for microcontroller-based applications that require a reset signal for different power domains, like automotive or industrial automation.

Working Principle of ADM1818-10AKS-RL7

The ADM1818-10AKS-RL7 works by adjusting the reset delays and conditions using external timing components to the Reset Low (RSTL) or the Reset Out (RETR) pins. It has two independent power supplies to provide dual voltage-on and voltage-off monitoring. If a power fail or brownout is detected on either supply, a reset signal will be generated. The ADM1818-10AKS-RL7 also monitors an external temperature sensor, and if the temperature exceeds the designated threshold, a reset signal will be generated.

Originally, the ADM1818-10AKS-RL7’s pins can be configured via the 16-lead LQFP (Low-Profile Quad Flat Package), with multiple configurations requiring more than one device. The ADM1818-10AKS-RL7 offers numerous features to reduce the board space, including an integrated crystal oscillator and an adjustable reset threshold voltage. The adjustable reset threshold voltage minimizes the selection of external components and allows for different resistor cascades.

The ADM1818-10AKS-RL7 is also equipped with a low-power noise filter for improved device noise immunity, reducing the need for external noise filters. Additionally, the built-in power-on reset condition eliminates the need for an external reset circuit. With its easy reset configuration and wide temperature operating range, the ADM1818-10AKS-RL7 provides an optimal solution for various power-on reset and power-fail conditions.

In summary, the ADM1818-10AKS-RL7 is a low-cost, low-power supervisor for monitoring voltage and temperature conditions in applications with dual-voltage supplies. It is suitable for systems that need to monitor power to ensure safe operation, as well as for applications requiring a reset signal for different power domains. Thanks to its integrated crystal oscillator, adjustable reset threshold voltage, low-power noise filter, and wide temperature range, the ADM1818-10AKS-RL7 is an optimal solution for various power-on reset and power-fail conditions.

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