APX803L20-43SA-7

PMIC - Supervisors are widely used in many applications, from consumer electronics to industrial control systems. The APX803L20-43SA-7 is an example of a supervisor IC (Integrated Circuit) used for a variety of purposes, from providing voltage control to over-voltage protection. In this article, we will discuss the application field and working principle of the APX803L20-43SA-7.

Application Field

The most common application for the APX803L20-43SA-7 is in controlling the voltage of a circuit. The built-in voltage reference circuit and on-chip regulators provide accurate voltage control with a wide input voltage range. This allows the APX803L20-43SA-7 to operate in a variety of conditions, such as in automotive applications or in computer/embedded systems. In addition to voltage control, the APX803L20-43SA-7 can also provide overvoltage protection for sensitive circuits. This ensures that the voltage in a circuit does not exceed a certain value, which can help prevent damage from accidental power surges.

Working Principle

The APX803L20-43SA-7 operates by adjusting the voltage applied to a circuit according to a reference voltage. This reference voltage can be set to different values depending on the application. Once the voltage applied to the circuit reaches this reference voltage, the APX803L20-43SA-7 automatically adjusts the voltage by either increasing or decreasing it. The built-in voltage regulator provides accurate voltage control while the on-chip overvoltage protection feature helps protect the circuit from power surges or other unexpected voltage spikes.

The APX803L20-43SA-7 also includes an on-chip watchdog timer, which helps detect abnormal conditions in the circuit. When triggered, the watchdog timer can reset the voltage to its reference level or take some other action to help protect the circuit. This helps ensure that the circuit is operating as expected and helps reduce damage caused by unexpected voltage spikes or issues with the circuit design.

Conclusion

The APX803L20-43SA-7 supervisor IC is a powerful device for voltage control, overvoltage protection and watchdog timer for various applications. Its wide input voltage range, accurate voltage regulation and built-in protection features make it an ideal choice for controlling and protecting sensitive circuits.