Texas Instruments provides a recommended PCB layout in the datasheet, but it's also recommended to follow the guidelines in the application note 'BQ24721 PCB Layout Guidelines' (SLUAUH7) for optimal performance and thermal management.
The selection of the inductor depends on the specific application requirements, such as the input voltage, output voltage, and output current. Texas Instruments provides a inductor selection guide in the datasheet, but it's also recommended to use the WEBENCH Power Designer tool to find the optimal inductor for your design.
The maximum ambient temperature for the BQ24721CRHBTG4 is 85°C, but it's recommended to derate the device's performance at higher temperatures to ensure reliable operation.
The BQ24721CRHBTG4 has a built-in OVP feature that can be enabled by connecting the OVP pin to a voltage divider network. The OVP threshold can be set by adjusting the voltage divider ratio. Refer to the datasheet for more details.
The recommended input capacitor type is a low-ESR ceramic capacitor, such as an X5R or X7R dielectric capacitor. The recommended value is 10uF to 22uF, depending on the input voltage and output current requirements.
BQ24721CRHBTG4 datasheet
by Texas Instruments
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