APX809S05-44SR-7

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Power management integrated circuits, or PMICs, are ubiquitous in the electronics industry. From cell phones to server farms, PMICs are essential for controlling and regulating the power supply to a given device. Supervisors are a particular class of PMICs that are designed to safeguard against any sudden power supply or voltage regulation issues. This article will discuss the various features, application fields, and working principles of the APX809S05-44SR-7 PMIC supervisor.

Designed as a low-voltage supervisor, the APX809S05-44SR-7 provides flexible reset/supplyline protection and control functions that are essential for reliable system operation. It is equipped with an active low reset line and a selectable active high/low supply line. With the active low reset line, the device can be configured to assert a reset signal when the supply voltage drops below some predefined threshold. The selectable active high/low supply line can also be configured to enable or disable power to the system when the input voltage exceeds or falls below a threshold respectively.

Given its unique feature set, the APX809S05-44SR-7 can be applied in a variety of scenarios. For example, it can be used in automotive applications such as battery power monitoring and voltage rail over/under-voltage protection. It can also find application in industrial and consumer electronics such as power supply regulator failure detection. In addition, its low-power consumption and low operating/reset voltage threshold make it a suitable replacement for existing PMICs in a variety of designs.

The working principle of the APX809S05-44SR-7 is relatively straightforward. It operates on a two-stage process wherein the device first monitors the supply voltage. If the voltage drops below a certain threshold, the device will assert a reset signal to the system. The device also has a selectable active high/low supply line which can be configured to enable or disable power to the system when the input voltage exceeds or falls below a predefined threshold. The device can also be configured to adjust its reset threshold as the supply voltage changes.

In conclusion, the APX809S05-44SR-7 supervisor is a low-voltage PMIC which provides flexible reset/supplyline protection and control functions essential for reliable operation. It is suitable for use in a variety of applications such as automotive, industrial, and consumer electronics. The device operates on a two-stage process whereby it first monitors the supply voltage and then can be configured to assert a reset signal or change its reset threshold when the voltage drops below a certain threshold. The selectable active high/low supply line can also be configured to enable or disable power to the system when the input voltage exceeds or falls below a predefined threshold.

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