APX803L05-38SA-7

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Power ICs, such as the APX803L05-38SA-7, have emerged as a major component in the microprocessor and microcontroller-based systems. This specific IC address the engineering requirements of many advanced systems, thus providing much-needed design flexibility. This article seeks to shed more light on theAPX803L05-38SA-7\'s application field and working principle.

The APX803L05-38SA-7 is part of the PMIC (Power Management Integrated Circuit) Supervisor family. It is a low-power single chip supervisory circuit that can provide industry-standard reset/watchdog and power-fail functions in one package. The chip supports 100KHz- 33 MHz clock and can be used in battery- and AC- powered systems.

The APX803L05-38SA-7 can be used to perform three different functions. The first one is the generation of a system reset signal. This signal is triggered in the instance of an attempt of CPU shutdown. The second function is the generation of alert signals. The third is the control of power supply. The chip has an integrated power-fail comparator which acts as a reset source when the voltage of the power supply is outside a preset range.

The APX803L05-38SA-7 has several features which make it suitable for multiple power management applications. For example, it has a temperature sensor for monitoring die temperature, an integrated ±2% accurate bandgap reference, and an integrated low-dropout voltage regulator (LDO). in addition, it features programmable reset/watchdog timers and delay elements.

The APX803L05-38SA-7 is an ideal choice for battery-operated systems because it has extremely low power consumption (as low as 0.36µA in sleep mode). Its high precision architecture makes it suitable for use in a variety of temperature ranges. Moreover, it can be used in a mixed power source environment.

The working principle of the APX803L05-38SA-7 consists of a few simple steps. First, the device will detect any power fluctuation that occurs in the power supply. Then, the internal circuits will take it from there. Depending on the conditions, the chip will generate a system reset signal to reset the system. An alert signal will be sent to the microcontroller when the power supply is outside the preset range. Lastly, the LDO will control the supply voltage.

In conclusion, the APX803L05-38SA-7 is a low-power integrated single chip that can provide reset/watchdog and power failure functions to microcontrollers. With its low power consumption and wide range of temperature tolerance, it is an ideal choice for battery-operated systems. Furthermore, it can detect power fluctuations and generate reset signals and alert signals accordingly.

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