MP2678EG-104-LF-P

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A PMIC – Battery Chargers, is a type of electronic device that is used to charge a battery. The charge can be for rechargeable and primary batteries. It is usually a combination of a power source and a charging regulator. On the other hand, the MP2678EG-104-LF-P is one of the devices in this type and is designed to deliver low-noise and high-efficiency charging solution for the charging of single-cell Li-ion batteries. Let’s find out more about its application field and working principle.

The MP2678EG-104-LF-P is predominantly used to manage the charging of lithium-ion and lead-acid batteries in portable devices such as smart phones, tablets, and other multi-functional mobile devices that require high-efficiency, low noise, low power consumption and space-saving performance. It can also excel in low-voltage applications like smart meters and handheld medical devices, while utilising its versatile features such as programmable input current, output voltage, and under-voltage lockout.

The MP2678EG-104-LF-P employs both linear and switching regulator technologies. A linear regulator is used for low-noise, high-efficiency charging, while a switching regulator is used for processing large currents and improving total system efficiency. The device also features power-saving sleep mode, adjustable fast current charger and safety protection.

At the heart of the MP2678EG-104-LF-P is its MCU – a low-cost 8051-compatible microcontroller with a programmable flash memory. This MCU provides an easy way to customize the charger, while maximizing system performance and ensuring safety of the device and the batteries. The MCU has a built-in temperature sensing function, low battery warning function and an over-voltage protection to protect the batteries against overcharging and excessive current.

The MP2678EG-104-LF-P operates on either direct- or alternating-current power which is supplied by the mains or charger. It then converts this power into the regulated voltage and current that the batteries need for optimal charge. The charging current is adjustable to meet the requirements of the application and the battery, allowing for maximum flexibility. The maximum input current is 4A, maximum output current is 1A, and the maximum output voltage is 5V.

The MP2678EG-104-LF-P integrates an Independent Discharge Control (IDC) that helps optimize the battery lifetime. It also features an advanced power-save sleep mode for high efficiency and low noise, for extended battery life. The device also has a JEITA temperature sensing feature for safety protection. This feature allows for the temperature of the Li-ion battery to be monitored, avoiding the risk of overcharging or fire during charging.

The MP2678EG-104-LF-P is packaged in a small 16-pin QFN package and is designed to operate over the -40°C to 85°C temperature range. It is an ideal choice for low-power, low-profile charging systems that require low-noise and high-efficiency performance.

All in all, the MP2678EG-104-LF-P is a low-power, low-noise and high-efficiency charging solution suitable for a variety of mobile devices and other applications. With its adjustable current and voltage output, it offers maximum flexibility while ensuring optimal charging of the batteries. Additionally, its advanced power management, temperature sensing and protection features guarantee safe and reliable operation while minimizing the power consumption.

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