APX803-26SAG-7

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PMIC (Power Management Integrated Circuit) is a type of integrated circuit mainly used in the power management of electronic systems. The APX803-26SAG-7 belongs to the class of PMIC - Supervisors. It offers a complete power management solution with an additional feature of providing voltage protection, on-chip supervision, ultra-low power and wide range of voltage detection. This article explains the application field and working principle of APX803-26SAG-7.

Application Field

The APX803-26SAG-7 is mainly used in portable devices, where battery\'s current position is accounted for. It is used for maintaining the supply voltage rail for optimal system performance. It is used for preventing the device from the risk of voltage swings due to the variation in the power rail. Furthermore, it prevents the device from abruptly shutting down or resetting while changing the power supply type. It is also used in embedded systems such as consumer appliances such as smart TVs, digital video recorders and wearable devices.

The APX803-26SAG-7 is also suitable for applications such as motor control, power supply sequencing and power system management in industrial automation. It is also used for powering low power peripherals such as RF communications, barcode readers and for supplying the power for arrays of LEDs. Additionally, it can also be used for portable device applications such as laptops, tablets and smartphones, where battery’s current position is accounted for.

Working Principle

The APX803-26SAG-7 integrated circuit provides a variety of functions for power management. It can be used for monitoring the voltage level of a power rail and providing protections for over-voltage and under-voltage conditions. Its control signals are generated using an on-chip bandgap reference. It includes an integrated voltage supervisor which generates a reset pulse when the voltage on the supply rail drops below the specified threshold. This reset pulse helps in preserving the device’s state during power failure.

The APX803-26SAG-7 also includes an array of comparators that monitor the output voltage and generate the power-good signal. If the output voltage is within the specified range, the power-good signal is activated. Additionally, it includes an integrated timer circuit, which is used to prevent the device from resetting during device startup. The APX803-26SAG-7 integrates ultra-low power consumption, providing an extended system lifetime.

The APX803-26SAG-7 also has an on-chip LED which indicates the status of the power rail. It also includes a temperature sensor which is used to monitor the system’s temperature and to protect the device from overheating. It further includes an array of analog-to-digital converters which are used to measure various system parameters such as current and temperature. The APX803-26SAG-7 provides a wide range of features, enabling it to be used in a variety of applications.

In conclusion, the APX803-26SAG-7 belongs to the class of Power Management Integrated Circuits called Supervisors. It provides a complete power management solution with an additional feature of providing voltage protection, on-chip supervision, ultra-low power and a wide range of voltage detection. It is mainly used in portable devices, consumer appliances, industrial automation, motor control, power supply sequencing and power system management. It includes a variety of features such as on-chip reset circuits, voltage monitoring, power-good signal, LED and temperature sensor.

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