DS2712E+

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The DS2712E+ is a power management integrated circuit (PMIC) designed to provide charging, level translation, and protection of a single cell Li-ion or Li-polymer battery. It features a switching buck converter to regulate the most efficient current into the battery during charging. Its very small 8 Lead MicroPak package is designed for reduced board space and higher integration potential. This product is ideal for mobile applications such as smart phones, PDAs and portable MP3 players, since it is available in multiple package types and requires only few external components. Additionally, the DS2712E+ includes status and protection circuitry to further enhance the safety of the system.

This product also provides safety features that protect against overvoltage, temperature and current conditions. The overvoltage protection feature shuts down the charger when the output voltage exceeds its preset threshold. The device also has temperature protection that monitors both the battery and charging die temperature, and a current protection feature that shuts down when the charging current exceeds the preprogrammed limit. Combined, these features protect the system from damage during an unexpected event.

The DS2712E+’s buck converter is designed to optimize the current limits to ensure the battery won’t be overcharged. The device automatically controls the output voltage, allowing a tight regulation of the charge current to match battery specifications. The buck converter can also be used to power any system components with the same output voltage used for charging, eliminating the need for a secondary voltage regulator for system power.

The DS2712E+ features programmable charge termination and recharge capabilities. The charge termination is adjustable to guarantee a complete charge cycle, while the recharge is adjustable in order to resume cycling after a deep discharge event. Both of these features not only provide improved run-time and performance but also increase the life of the battery.

The adaptive recharge option of the DS2712E+ reduces the amount of time needed to recharge the battery to its full capacity. This is possible by decreasing the recharge current once the battery is nearly full. This decreases stress on the battery and conserves energy, in turn prolonging the battery’s life.

The DS2712E+ also offers many helpful diagnostic features. It includes analog output pins which monitor current into or out of the cell, allowing the user to see the status of the battery and the system at any given time. The battery charge status can also be readout digitally to further verify the battery\'s life, state-of-health, and remaining capacity.

In summary, the DS2712E+ is a versatile and reliable PMIC which allows the user to monitor battery and system status, as well as control charge and discharge, in a highly integration environment. Its advanced features, like adaptive recharge, temperature and overvoltage protection, optimize the battery\'s life and help to ensure system stability. This makes the DS2712E+ an invaluable tool when it comes to protecting and extending battery life in mobile applications.

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