APX803L-34SA-7

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PMIC Supervisors are used to protect and manage the power supply lines in integrated circuits. The APX803L-34SA-7 is a supervisor and power management integrated circuit, or PMIC. It is designed to improve the protection and management of power supply lines within power-sensitive applications. This article provides an overview of the APX803L-34SA-7\'s application fields and working principles.

Application Fields for the APX803L-34SA-7

The APX803L-34SA-7 is designed to manage and protect power supplies within high-voltage and low-voltage integrated circuits used in various electronic systems. It is suitable for applications such as digital cameras, computer systems, and microcontrollers. This supervisor monitors and manages the power supply systems available in these systems and ensures that power sources remain within the specific operational parameters to ensure accurate performance. The supervisor also provides protection to these power supply systems if fluctuations outside of the expected range occur.

Working Principles of the APX803L-34SA-7

The APX803L-34SA-7 monitors and manages multiple power supply lines. It features two high-voltage (HV) pins and four low-voltage (LV) pins. The HV pins are used to give +5V, +3.3V, +2.5V, or +1.8V to the integrated circuit. The LV pins are used to give +1.5V, +1.2V, +1.0V, or +0.9V to the integrated circuit. Each LV pin also has an associated enable pin that is used to enable or disable power flow to the corresponding LV pin.

In operation, the APX803L-34SA-7 uses a combination of its monitoring and protection features to maintain power supply levels within acceptable ranges. It monitors the levels of the HV and LV pins and compares them against a set of preset operational levels. If any of the monitored levels stray outside of the acceptable range, the supervisor triggers one of its protection mechanisms.

The first type of protection is called overcurrent protection. This protection mechanism works by cutting off the power to the integrated circuit if the current draw exceeds a certain threshold value. The second type of protection is an over-temperature protection mechanism. This feature detects when the temperature of the integrated circuit rises too high and then shuts off the power to the circuit in order to protect it from further damage.

Finally, the APX803L-34SA-7 also has under-voltage protection. This feature will cut off the power to the circuit if the voltage falls below a certain threshold. This feature is typically used when a power supply is not able to supply enough power and the voltage drops too low.

Conclusion

The APX803L-34SA-7 is a power management and protection integrated circuit (PMIC), designed for integration into high-voltage and low-voltage applications in order to improve their protection and power management. Its application fields include digital cameras, computer systems, and microcontrollers. The internal workings of the APX803L-34SA-7 involve monitoring the power supply lines and comparing it to preset operational levels. In the event that any of the monitored levels stray outside of the acceptable range, the supervisor triggers one of its protection mechanisms such as overcurrent, over-temperature, or under-voltage protection.

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