BQ25100AYFPR

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Power management integrated circuit (PMIC) is essential for modern electronic system. Battery chargers, one type of PMIC, include the control, regulation, and optimization of power supply to rechargeable battery. In this article, we will focus on Texas Instruments’ BQ25100AYFPR battery charger, which has wide application from low-power handheld systems to higher power industrial solutions.

As an integrated circuit, BQ25100AYFPR is capable of providing single battery charging and host power supply, incorporating safety features such as over voltage, over current, and short circuit. Small package size and low component count of the chip greatly reduces design complexity and help designers to quickly develop their product.

BQ25100AYFPR is designed to meet a wide variety of battery charging requirements. It offers a programmable switch mode charging current from 30mA to 3000mA and up to 5.0V charging voltage, which allows it to be used in a variety of applications from supercapacitor charging to Li-ion/Li-poly charging. Other features include thermal monitoring and low power consumption for applications which require low quiescent current.

Further, BQ25100AYFPR is one of the most advanced battery charger, which has an integrated input current monitor to provide precise data on the source of input current, allowing the user to accurately measure the total power consumption of the application. This feature further enhance its robustness, making it one of the ideal choice for a wide variety of battery charging application.

BQ25100AYFPR works by controlling the input current and voltage fed to the lithium-ion battery through a switching mode, regulating the charging current and voltage errors in order to optimize the charging process. The charging current is limited by the external resistor, while the voltage is limited by an internal reference voltage, making the BQ25100AYFPR a more reliable, robust, and cost efficient solution for charging applications.

BQ25100AYFPR also provides safety features to protect the battery from overvoltage, overcurrent, and short circuit conditions. Its integrated over-temperature protection shuts down the device during extreme temperatures. with the integrated overvoltage protection, the BQ25100AYFPR safely terminates the charging process if the input voltage is too high, which helps to protect both the battery and the source of the power. Additionally, the device provides full protection from reverse insertion of Li-Ion cells.

In summary, Texas Instruments’ BQ25100AYFPR is an advanced, cost efficient battery charger for a wide variety of applications. It offers a programmable switch mode charging current, high voltage charging voltage, thermal monitoring, and low power consumption which makes it an ideal choice for battery charging applications. With embedded protection circuitry and an integrated input current monitor, BQ25100AYFPR provides robust performance, protection, and optimization for battery charging.

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