APX810S05-31SR-7

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PMIC (Power Management ICs) understands the criticality of power delivery requirements in today’s sophisticated embedded systems. They offer a package of components from a wide range of different ICs to address the needs of various embedded designs, no matter its size or complexity.

Supervisors are one of the most important elements of Power Management ICs because they are responsible for providing system accuracy, flexibility, safety and reliability. Supervisors are circuitry that watch RAM, ROM and I/O for specified conditions, and may be programmed to initiate system reset or other actions upon occurrence of those conditions. For instance, in some cases, supervisors are designed to reset the system when the power supply rails are out of their normal ranges. Hence, they are used to prevent system irregularities and ensure system stability.

The APX810S05-31SR-7 is a robust, high-accuracy, single reset supervisor offering a wide variety of features to meet the requirements of diverse embedded applications. This device has an active-high, open-drain reset output that is activated whenever the monitored voltage falls outside its reset voltage window, as well as when the time-out period elapses. This reset can then drive a reset signal to the processor or microcontroller.

The APX810S05-31SR-7 can be used to monitor a supply voltage with a range from 0.7V up to 5.5V. It provides a windowed reset monitoring for double protection of the digital circuits, with the first reset being triggered when the monitored voltage falls outside its window, and the second being triggered by a timeout period. This ensures optimum reliability for the complete system.

Under off-state, the APX810S05-31SR-7 has a low current draw, which is ideal for embedded applications where power saving is of utmost importance. It also has built-in reverse polarity protection, which prevents against back-channel current flow and makes it virtually immune to accidental overvoltages or reverse bussing. The device also has an adjustable watchdog timeout of 1.5 ms-32 s.

The APX810S05-31SR-7 can upgrade almost any embedded system with a wide degree of protection, making it ideal for a variety of applications such as Remote/Universal Switching Applications, Industrial PC/Network/Embedded System Applications, CPU Board/Server/I/O Board Applications and more.

The working principle of the APX810S05-31SR-7 is fairly simple. It is designed to monitor a supply voltage, with a range from 0.7V up to 5.5V, and has a programmable windowed reset monitoring for double protection of the digital circuits. This is done by activating two reset events: the first event is triggered when the monitored voltage falls outside its window, and the second event is triggered when the pre-set time-out period elapses. In case of voltage irregularities, the device will drive a reset signal to the processor or microcontroller. When the system is in off-state, the APX810S05-31SR-7 has a low current draw, and it is virtually immune to back-channel current flow or accidental overvoltages.

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