MC33341PG

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Battery chargers are an essential part of many modern devices, such as laptops and mobile phones. They allow the device to be powered from an external source, such as a wall outlet or car charger. The MC33341PG is a battery charger designed specifically for devices that require high-current charging, such as tablet computers, notebooks and portable media players. This application note provides an overview of the MC33341PG, including its application field, working principle and operation.

Application Field

The MC33341PG battery charger is a high-efficiency, 3-stage charge controller with an input range of 6 to 28V. It is designed to provide a safe and reliable charging solution for lithium-ion and lithium-polymer batteries in applications such as tablet computers, notebooks and portable media players. The MC33341PG features low input current ripple and high output current accuracy. It utilizes a synchronous buck boost current control method, allowing it to regulate the output current over a wide load range.

Working Principle

The MC33341PG is a 3-stage charge controller which utilizes a synchronous buck boost current control method. This method of control allows for a low input current ripple and high output current accuracy. The MC33341PG is able to regulate the output current over a wide load range, allowing for a highly efficient and reliable power delivery solution.

The MC33341PG utilizes a Charge Hub Interface (CHI) for communication with the host device. This allows for a wide variety of functions to be controlled, such as the charge current, charge voltage and charge time.

Operation

The MC33341PG utilizes a 3-stage charge control method. During the Pre-charge stage, the charger increases the input current slowly in order to prevent high inrush current. This reduces the stress on the battery cells and helps to reduce battery aging. The Constant Current stage is then initiated, allowing the battery to be charged at a constant current. The last stage is the Constant Voltage stage, where the charger reduces the current as the battery approaches its full charge. This allows for a fast and efficient charge of the battery.

The MC33341PG is designed to provide an easy to use yet highly efficient and reliable charging solution for tablets, notebooks and other portable media devices. It provides a safe and reliable charging method while ensuring maximum battery longevity. With its synchronous buck boost current control, the MC33341PG is able to deliver high current accuracy and low input current ripple to the battery, allowing for a quick and efficient charge.

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