BQ24745RHDT

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PMIC - Battery Chargers

Texas Instruments’ BQ24745RHDT synchronous buck-boost charger is an ideal solution for fast, reliable charging of Li-Ion and Li-Polymer batteries in portable electronics. With an input current up to 7A and a programmable termination current up to 2A, the device provides a complete charging solution to applications with a maximum battery voltage of 20V. The device is highly efficient, supports multiple charging profiles, and features integrated over-temperature protection and output voltage monitoring.

The BQ24745RHDT is a highly integrated battery charge controller for portable applications. This device includes a buck-boost converter, battery protector, status monitor, and a high efficiency PowerPath technology. The buck-boost topology supports a wide input voltage (4.5V to 31V) and a wide battery voltage range (2.2V to 20V). This feature helps reduce the number of external components.

The BQ24745RHDT works in current and voltage mode, depending on the application needs. In current mode, the converter will limit the output current to the programmed limit while in voltage mode, the converter will maintain a regulated voltage and limit the output current depending on the load. The device also supports non-zero termination and trickle charge. This feature helps reduce power consumption and extends battery life. Additionally, the device can automatically resume charging when the battery voltage drops below a pre-defined threshold.

The BQ24745RHDT can be used in applications such as, but not limited to, smartphones, tablets, digital cameras, portable media players, mid-range devices, wearables, and smart home devices. With its high efficiency and low component count, the BQ24745 is an ideal solution for applications where energy efficiency, space savings, and cost are of key importance.

The BQ24745RHDT provides a number of protection features to ensure safety and reliability. It includes short circuit protection, over temperature protection, reverse current protection, over current protection, and under-voltage protection. The device also features a programmable timer to terminate the charge cycle if it exceeds the programmed time. Additionally, the device can disconnect the battery from the system in the event of a fault.

In conclusion, the BQ24745RHDT is a highly integrated, efficient, and reliable battery charge controller for portable applications. The device provides multiple charging profiles and protection features to ensure safety and reliability. With its wide input voltage range, low component count, and high efficiency, the device provides an ideal charging solution for applications such as smartphones, tablets, digital cameras, and smart home devices.

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