APX823-46W5G-7

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The APX823-46W5G-7 has been designed as a single-channel microprocessor reset supervisor solution for advanced applications of the power supply management ICs, often referred to as PMICs (Power Management Integrated Circuits). The APX823-46W5G-7 is a multi-function device, providing several features and functions, such as a watchdog timer, a manual reset input, a manual reset output, and a low voltage detector. The purpose of the APX823-46W5G-7 is to monitor microprocessor activity, inform the microprocessor when it\'s not working correctly and reset the microprocessor system when it fails.

The APX823-46W5G-7 supervisor is considered to be a PMIC supervisor because it has many of the features that are typically associated with PMICs. The most important feature of a PMIC supervisor is its ability to protect the system from any unexpected or uncertain events such as power loss, overvoltage, and/or undervoltage. The APX823-46W5G-7 provides all these features, as well as other features such as adjustable reset thresholds, manual reset input, and manual reset output.

The working principle of the APX823-46W5G-7 supervisor is quite simple. The APX823-46W5G-7 is designed to monitor the input voltage of the microprocessor, then compare it to the adjustable reset threshold voltage. If the input voltage is lower than the reset threshold voltage, it will trigger an internal timer and assert the manual reset output signal. The reset signal will cause the microprocessor to be reset and restart its normal operations.

The reset duration of the APX823-46W5G-7 supervisor can be adjusted using the internal timer. The reset duration is variable and can be adjusted via external inputs like voltage or logic levels. The internal timer can also be bypassed, allowing for a “one-shot” reset only. Lastly, the reset signal can be asserted via a manual reset input and reset output for additional functions like reset postpone, pure hold, reset delay, etc.

The main applications for the APX823-46W5G-7 supervisor include PDAs, cell phones, digital cameras and many other electronic systems that require high-reliability, low-power and low-voltage systems. The APX823-46W5G-7 is also suitable for systems with limited board space, because the IC is in a very small package. It is ideal for applications that require a low supply voltage, which is determined by the reset flag logic levels. The APX823-46W5G-7 is also tolerant of electrical transients, making it ideal for industrial and automotive applications.

The APX823-46W5G-7 supervisor is an excellent choice for many advanced power management applications. Its features make it suitable for a wide range of applications, from low voltage systems to industrial and automotive applications. The reset flag logic levels allow for a high-reliability, low-voltage solution for within a limited board space. Additionally, the adjustable reset threshold, manual reset input, and manual reset output make it a very attractive option for protection against unexpected or uncertain events.

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