APX809-46SAG-7 Integrated Circuits (ICs)

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PMIC (Power Management Integrated Circuit) supervisors are a type of integrated circuit that functions primarily as a device for monitoring and controls the voltage and current of a power supply. The APX809-46SAG-7 is a type of PMIC supervisor that is specifically designed for automotive applications. It offers precise protection for audio line applications and has a safe cutoff mode for complete safety.

The APX809-46SAG-7 is a single-channel PMIC supervisor that provides overvoltage protection, overcurrent protection, and thermal shutdown protection. It is designed to protect automotive audio systems from overvoltage, overcurrent, and overheat events. The device has an adjustable overvoltage protection threshold (OVP) range of 4.50V to 5.50V and an adjustable overcurrent (OCP) protection range of 3.7V to 7.6V. The thermal shutdown temperature can be configured between 150 °C and 170 °C. It is packed in a 6-pin LLP (Leadless Leadframe Package).

The APX809-46SAG-7 is designed for use in automotive audio systems such as radio, amplifiers, and MP3 players. It is also suitable for other consumer electronics such as digital cameras, portable media players, and cell phones. The device offers precise protection for audio line applications and has a safe cutoff mode for complete safety.

The working principle of the APX809-46SAG-7 is quite simple. The device constantly monitors the input voltage and current, and if the monitored values exceed the preset thresholds, the device will activate its protection circuit, and cut off the power supply. For overvoltage protection, the device will shut off the output voltage as soon as the output voltage exceeds the preset OVP threshold. For overcurrent protection, the device will shut off the output voltage as soon as the output current exceeds the preset OCP threshold. For thermal shutdown protection, the device will shut off the output voltage as soon as the internal temperature of the device exceeds the preset temperature limit.

The APX809-46SAG-7 is a highly efficient and reliable device for protecting automotive audio systems from overvoltage, overcurrent, and overheat events. It features a wide range of adjustable parameters, allowing it to be tailor-made for each application. It is packed in a small 6-pin LLP (Leadless Leadframe Package), making it suitable for automotive applications.

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