APX809S00-29SA-7

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Power management integrated circuits (PMICs) are integrated circuits in electronic devices that manage how power is delivered and smoothed to other devices. PMICs come in a variety of types including supervisors, DC/DC regulators, LDOs and controllers. The APX809S00-29SA-7 is a supervisor that aids in providing reliable, high-precision power protection for a wide range of applications.

A supervisor, also known as a voltage supervisor and line guard, is a device that monitors and manages the voltage of the system. The APX809S00-29SA-7 is considered a “robust” supervisor, offering a number of features that extend its applications compared to other PMICs. This supervisor features a full-integrated watchdog timer and a reset output, enabling it to act as a timer in order to monitor the normal operation of a system, issuing a reset signal when needed. It is equipped with a resistive-programmable precision voltage-detection circuit and can operate on a wide input voltage range from 2.4V to 6V, making it suitable for low-voltage applications.

The APX809S00-29SA-7 has two configurable strobe inputs that can be used to output two independent strobe signals as interrupts. These interrupts can be used in power management and system control applications. Furthermore, this supervisor offers an adjustable reset timeout that can be programmed via an external resistor. It has a built-in power-on reset (POR) circuit and is capable of resetting or delaying reset for various protection functions and fast power-up operations. The APX809S00-29SA-7 also features a low power-I/O retention mode and a low average power consumption of just 4uA in power-down mode, making it ideal for battery-powered operations.

As a supervisor PMIC, the APX809S00-29SA-7 offers versatile control capabilities and is suitable for a number of applications. It can be used in a variety of embedded systems, such as in automotive powertrain, automotive body control, IoT gateway systems and wireless base station monitoring systems. It is also suitable for industrial, medical and consumer electronics applications. This supervisor can be used to monitor voltage levels in the system, issue a reset signal if needed, and output interrupts for power management and system control applications.

The working principle of the APX809S00-29SA-7 is simple and straightforward. This supervisor uses an external resistor to detect the system voltage, and then compares it with its own reference voltage. If the system voltage is lower than the reference voltage, it will issue a reset signal and output a strobe signal. The two strobe signals can be used by other devices in the system for control purposes, such as powering up other components, programming other components, and controlling system functions. Additionally, the APX809S00-29SA-7 can be used to detect power faults, helping the system to identify and correct problems before they occur.

In conclusion, the APX809S00-29SA-7 is a high-performance supervisor that is well-suited for a variety of applications. This supervisor offers reliable power protection by monitoring and managing the voltage of the system, as well as issuing reset and strobe signals to other components in the system. It has a wide input voltage range and a low power consumption, making it suitable for battery-powered operations. This supervisor is easy to use and can be used to prevent power faults before they occur, making it an ideal choice for power management integrated circuits.

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