The BQ24075TRGTR is a highly integrated, single-chip linear charger IC designed for 4.2V Li-ion and Li-polymer battery charging applications. This component is manufactured by Texas Instruments and offers a wide range of features that make it suitable for various portable electronic devices.
One of the key features of the BQ24075TRGTR is its ability to provide a regulated voltage output of up to 4.2V, which is ideal for charging Li-ion and Li-polymer batteries. The IC has a pre-charge current of 60 mA, and a fast-charge current of up to 1A, allowing for efficient and quick charging.
The device supports USB input power sources, with an integrated power-path management feature that allows for simultaneous charging and system operation. This power-path management ensures that the system receives power while the battery is being charged, optimizing the overall system performance.
To protect the battery and the device, the BQ24075TRGTR features various safety mechanisms. It has a thermal regulation system that prevents excessive heat generation during charging, ensuring safe operation. The IC also incorporates reverse current flow protection, preventing discharge from the battery back to the input when the USB or adapter power is disconnected.
Furthermore, the BQ24075TRGTR offers a built-in charge indication feature, where an external resistor connected to the PROG pin determines the charging current status
