ACT8937QJ205-T

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A PMIC is a type of integrated circuit (IC) which regulates power and supplies multiple power rails and output voltages with various features used in various applications. The ACT8937QJ205-T is a highly integrated single-channel PMIC with many features, making it a suitable choice for a range of applications.

Applications using the ACT8937QJ205-T PMIC can include various types of mobile devices where portable power sources are essential. Some of the target applications include, but are not limited to, audio amplifiers, portable computing devices such as laptop computers, and other embedded systems. The ACT8937QJ205-T also has low quiescent current which makes it an ideal choice for battery-powered applications.

The ACT8937QJ205-T is a flexible, low-cost PMIC with numerous functions. It includes a buck-boost regulator with two output voltage channels, an input supply supervisor for monitoring system power and a highly accurate thermistor interface. It also provides other supporting features such as a low shutdown current and an ultra-low power anti-wrong pin system. The wide operating temperature range of -40°C to +85°C makes the device ideal for portable and embedded applications.

The ACT8937QJ205-T PMIC offers numerous protection features to protect the load device from hazards like over-temperature, over-current, and short circuit. This PMIC also offers an adjustable soft start for the buck-boost regulator which helps to limit inrush current and reduce the possibility of output voltage drooping. Additionally, the PMIC provides high current internal drive capability up to 5A.

The buck-boost regulator of the ACT8937QJ205-T operates in two operating modes: in buck or boost mode. When the input voltage is higher than the desired output voltage, the buck mode is activated in which the voltage is reduced by using a PWM signal. On the other hand, when the input voltage is lower than the desired output voltage, the boost mode is activated in which the voltage is increased using an inductor. The application of the right mode to the right situation is important to ensure a stable output voltage.

The ACT8937QJ205-T PMIC also provides a highly accurate thermistor interface which can accurately measure system temperature. This feature can be used to monitor the thermal performance of the system, as well as to protect it from over-temperature conditions. The thermistor interface also has an adjustable set-point delay so that the system can take corrective action before it reaches the over-temperature condition. Moreover, system can adjust the temperature measurement threshold for power management.

Finally, the ACT8937QJ205-T PMIC has a unique anti-wrong pin feature which prevents damage to the PMIC due to incorrect connection. This feature detects mis-connections and can disable the power supply areas in the PMIC, unlike other devices which can get multiple contaminations due to incorrect connection.

In conclusion, the ACT8937QJ205-T is a highly integrated PMIC which is suitable for various applications due to its features and flexibility. It offers highly accurate temperature measurement, over-temperature protection, low power consumption and an anti-wrong pin feature. The adjustable soft start and buck-boost operating modes make it extremely useful for battery powered applications. Therefore, the ACT8937QJ205-T PMIC is an ideal choice for mobile and embedded devices looking for reliable power supply and management.

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