BQ24022DRCR

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BQ24022DRCR Application Field and Working Principle

Classified as Power Management Integrated Circuit (PMIC), the BQ24022DRCR battery charger stands as an innovative, advanced charging solution from Texas Instruments. It consists of a linear charge management unit with a programmable current and thermal regulation, accompanied with a high-accuracy voltage regulation loop. Its primary purpose is for fast charging lithium-ion batteries found in mobile devices, notes computers, portable media players and many others.

The BQ24022DRCR\'s integrated charge management unit (CMU) enables users to supply both power and charging source to the device via USB, making it highly versatile in usage. Boasting a wide input voltage range from 3.65 V to 5.5 V, it uses a selectable low-side power switch to completely disconnect charging when the input voltage is below 4.25 V or above 5.5 V, resulting in an enhanced battery life.

The BQ24022DRCR is built with safety and protection features that prevent overheating and over-voltage to the battery, reducing the risk of damaging the charging devices. The DC/DC boost converter is able to maintain a stable voltage on the battery during long term discharging, allowing the charger to fully charge the battery without negative effects.

The boost converter can also be used to adjust the output voltage to various levels such as 5 V, 6 V and 9 V, with support for up to 1.5 A current in order to meet the needs of various applications. The boost converter further provides wide voltage compensation range and low start up current to enable accurate and reliable charging.

The BQ24022DRCR charger is also equipped with a multi-mode protection feature that allows it to detect any situation that may produce a fault current and take action accordingly by reducing the output current to safe values. It also has a load disconnect that can be used to shut off power automatically when the connected device is exceeding certain current and time limits.

The BQ24022DRCR\'s combined linear CMU and high-accuracy voltage regulation loop make it the ideal choice for battery charging applications. Its fast and safe charging capabilities, together with its wide input voltage range, multi-mode protection and load disconnect features keep it a step ahead from competitors.

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