BQ25120AYFPR

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The BQ25120AYFPR is a high-performance, high-efficiency Battery Charger Integrated Circuit (IC) from Texas Instruments. It is part of TI’s power management integrated circuits (PMICs) portfolio, and it is specifically designed for charging single-cell Li-ion or Li-polymer batteries. This PMIC is ideal for handheld and portable consumer electronic applications, such as automotive infotainment, soundbars, tablets, gaming devices, and battery-powered devices.

The BQ25120AYFPR integrates charge current, voltage and temperature monitoring, as well as battery protection, automatic charging, and power-sourced functions. It also includes reverse current protection and over-voltage protection features to reduce power dissipation, as well as a power-saving shutdown mode.

The BQ25120AYFPR can be configured in a variety of ways, depending upon the system requirements. It can accept either a constant voltage (CV) or a constant current (CC) for charging the battery. The device has five input voltage configurations and can be programmed for charging voltages as high as 4.75 V, with programmable input current limiting up to 2.6 A.

The BQ25120AYFPR also includes a unique hysteresis control feature, which eliminates the thermal runaway problem associated with traditional charging circuit designs. Hysteresis control allows the device to maintain a constant temperature while charging, even if the voltage or current is changed. This eliminates the need for a battery thermistor and reduces power dissipation.

The BQ25120AYFPR works in conjunction with a battery safety IC, such as TI\'s BQ24650, to protect the battery from overcharge and other potential hazards. When the battery temperature rises above a preset temperature, the safety IC will shut down the charging process. The BQ25120AYFPR then resumes charging the battery once the temperature has dropped below the preset level.

The BQ25120AYFPR also includes an AC Monitor feature that allows the device to detect mains-connected AC sources. If the charger is connected to a mains-powered source, the AC Monitor will detect this and shut down the power to the charging circuit. This prevents any damage to the battery or charger due to overcurrent or overheating.

The BQ25120AYFPR also includes a pre-charge function, which is a safety feature that prevents the battery from being overcharged. During the pre-charge stage, the device limits the charging current to low levels to ensure that the battery is not charged too quickly, which could cause damage to the battery cells. The pre-charge period is usually set to a time interval of 10 minutes.

In summary, the BQ25120AYFPR is an ideal PMIC for a variety of portable and handheld devices due to its flexibility, feature set, and safety features. It allows for a wide range of charging parameters, as well as provides robust battery protection and automatic charging functions. Furthermore, the device is highly efficient, with minimal power dissipation and low thermal footprint. To ensure maximum safety, the device includes a pre-charge function and an AC Monitor, as well as reverse current protection and over-voltage protection.

The specific data is subject to PDF, and the above content is for reference