KA5M0965QTU

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Power management integrated circuits (PMICs) are electronic circuits that are designed to manage and regulate the flow of power from one source to multiple outputs. PMICs are used in a variety of applications, from smartphones and tablets to medical instruments and industrial machinery. The KA5M0965QTU PMIC is an offline switcher specifically designed for low-power applications. This article will discuss the application field and working principle of the KA5M0965QTU.

Overview of the KA5M0965QTU

The KA5M0965QTU is a low-power switching regulator designed specifically to meet the needs of applications such as portable and standby circuits, industrial appliances, and low-power consumer electronics. The device integrates many of the traditional switching regulator components such as an adjustable voltage reference, a current-mode control loop, an under-voltage lockout circuit, an over-voltage protection circuit, a soft-start function, thermal protection, and other analog circuits. The device also has a built-in Power Management Unit (PMU), which allows for the efficient and accurate management of power.

Application Fields

The KA5M0965QTU is designed for low-power applications. It is suitable for a wide range of applications, such as power supplies for portable electronic devices, industrial plant systems, and consumer electronics. The device is also suitable for applications such as automotive DC-DC converters, power adapters, battery-powered systems, and other related products.

Working Principle

The KA5M0965QTU is a low-power offline switcher (LPS) that operates in either a synchronous or delayed off-time mode. In synchronous mode, the device switches its output at a fixed frequency, based on a reference voltage provided by an adjustable voltage reference. In delayed off-mode, the device will switch its output at the same frequency but with a slightly delayed off-time to reduce switching losses and decrease output ripple. The device is then able to supply a steady output current, responding quickly to changes in input voltage.

The device is protected from overvoltage and undervoltage conditions by a built-in high-voltage MOSFET and an under-voltage lockout circuit. In the event of an overvoltage condition, the device will automatically shut down until the voltage level drops below a predetermined level, allowing it to continue operating safely. The device also features a thermal protection circuit that will shut down the device if it exceeds a predetermined temperature threshold.

The device also features a self-protection mode that is designed to protect the device from over-current events. In this mode, the device will shut down if it detects an over-current condition in order to prevent damage to the device or system. Additionally, the device features a soft-start function, which ensures a smooth start up, and decreases in-rush current.

Conclusion

The KA5M0965QTU is a low-power offline switcher specifically designed for low-power applications. The device provides efficient, accurate power management for a variety of applications, including automotive DC-DC converters, power adapters, battery-powered systems, and other related products. Its built-in protection features ensure a safe and reliable operation, even in the event of overvoltage and undervoltage conditions. With its low-power design, the KA5M0965QTU can be used in a wide range of applications to provide reliable and efficient power supply.

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