APX803L05-36SA-7

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The APX803L05-36SA-7 device is a type of PMIC (Power Management IC) – Supervisors. This device is a polyphase supervisor that simplifies system level power sequencing. It consists of 3 independant power domains operating with a system master and two slaves. The System Master and Slave cores independently supervise slew rate, voltage and over-current (OC) protection.

The System Master and Slaves each contain a trickle charge circuit and a separate OC protection circuit. Through the configured settings and the input of a reference voltage, the APX803L05-36SA-7 will detect a high OC condition on the connected bus, and can then disconnect a Fault signal to the system. This helps provide greater system stability and protection when large loads are placed on the connected circuits.

The APX803L05-36SA-7 device can also provide sequencing functionality to assure power stability during start up and shutdown. Through a user provided, externally generated signal, the system master and slaves will sequentially power up and down, with the system master acting as the controlling source. This helps ensure that the required power profile is followed, and the specific power components will only power on when their specified conditions are met.

Both the OC protection and power sequencing circuitry are integrated into the APX803L05-36SA-7 device. This integrated device provides a single solution for systemic power management, simplifying system design and robustness.

Due to its integrated nature, the APX803L05-36SA-7 device is well suited for applications requiring a higher degree of power protection and sequencing. An example application could be a multi-core processor design, where multiple processor cores need to be independently powered up and down, in sequence. This can reduce system disruption during failure states and power transitions.

The APX803L05-36SA-7 device is well suited for industrial, consumer, and automotive applications. High reliability and a wide operating temperature range make it ideal for harsh environments. This integrated device provides a single solution for control, sequencing, and protection of multiple power domains, simplifying power management and reducing the overall system cost.

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