BQ25910YFFT

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The BQ25910YFFT is a smart charge controller with an embedded serial presence detect memory. It is able to interface with a DC or AC power source and then detect, regulate and manage the charging process to charge a variety of batteries. Many sensors and protection circuits are available for monitoring and safeguarding the power source and battery energy system. It is targeted for applications such as smart phones and tablets, as well as wearables, medical devices and other battery-powered systems. This power management integrated circuit (PMIC) belongs to the Battery Chargers category.

At the heart of the BQ25910YFFT lies a Charge Module that offers several charge modes to fine-tune the charging performance. It features an adaptive pre-qualification mode that modulates the current based on voltage, a boost/battery pre-charge mode that allows it to operate at 24V, a constant current/constant voltage (CC/CV) charging mode, a fast charge mode that supports up to 2A charging current, and a trickle charging mode. The Charge Module is able to detect the battery temperature and automatically determine whether to enter fast charge mode or switch to trickle charge. Safety features such as over-voltage, thermal, and short-circuit protections are available to ensure against over-discharge and overheating.

In addition, the BQ25910YFFT offers an intelligent status and safety monitoring system with a range of sensing and protection circuits. It allows the user to monitor various parameters such as battery voltage, shielding current, charger current, protection status, and cell discharges. The protection circuitry has independent temperature monitoring and alarms, cell balancing, and discharge protection with adjustable current limit thresholds. Furthermore, the device also has an adjustable input voltage range and an adjustable current limit setting for improved flexibility.

This multifunctional device also supports a range of communication protocols, enabling communications with PMICs in the same application. It has an I2C interface and a dedicated control I/O pin which enable users to control and monitor the charging process through suitable embedded systems. The I2C bus can be used to send diagnostic data and make status/protection reports over a communication network. Furthermore, it supports an adjustable power-up delay to further help reduce power surges.

The BQ25910YFFT can be used for a wide range of applications requiring battery charging and power management. Its adaptive pre-qualification and CC/CV charging modes allow it to charge any type of lithium-ion and lithium-polymer battery. It is also compatible with smart phones, tablets, wearables, and a variety of other battery-powered devices. In addition, its robust protection features and communication protocols make it a reliable and cost-effective solution for high-powered battery charging applications.

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