APX809S00-26SA-7

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Power Management Integrated Circuit (PMIC) is a type of device used to manage electric power and improve the performance of devices such as embedded systems and mobile phones. The most common application of a PMIC is in devices that have low-power requirements, such as laptop computers. PMICs can be used to reduce the power consumption in these devices, as well as to provide the necessary voltage and current output required for higher-powered systems. In this article, we will discuss the application field and working principle of the APX809S00-26SA-7, which is a widely used PMIC – Supervisors.

APX809S00-26SA-7 is a voltage supervisor device which can sense the power supply voltage and generate a reset signal when the power supply voltage drops below a certain set threshold. It functions as an external voltage supervisor for a microprocessor, providing reset and warning signals to the microcontroller when the voltage levels drift outside of the pre-defined levels. In addition, this PMIC – Supervisors can also provide power sequencing, undervoltage lockout, safe operating area protection, and brown-out protection. It features a 5-pin SOT-23 package and has a power-on reset time of 60 ms.

The working principle of the APX809S00-26SA-7 can be divided into two stages: the input stage and the output stage. In the input stage, the device’s external power supply is monitored, and the input voltage is compared to an internally set threshold voltage. If the voltage level falls below the threshold voltage, the input stage provides an active signal to the output stage. In the output stage, an N-channel MOSFET output is activated, which is driven by a current source that is adjustable through an external resistor. The output stage also provides a reset signal to the microcontroller or other devices, depending on how it is configured.

APX809S00-26SA-7 is used in applications where it is necessary to regulate the voltage levels of a microprocessor or other devices. It is especially useful in portable and embedded applications, where power supply voltage variations are normal. It also provides protection against overvoltage and undervoltage, as well as short and open circuit protection, during power up and power down conditions. Additionally, the device can be programmed to generate a warning signal in advance of a reset threshold, in order to provide more timely warning of any potential problems.

APX809S00-26SA-7 is a cost-effective and highly reliable PMIC – Supervisors device. It is also relatively easy to configure, making it suitable for a wide range of applications. In addition, it is supported by a number of development tools and documentation, including a product leaflet, user’s guide, and application notes. In summary, APX809S00-26SA-7 is a powerful and cost-effective voltage supervisor device suitable for use in a wide range of applications.

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