Texas Instruments provides a recommended PCB layout in the datasheet, but it's essential to follow good PCB design practices, such as keeping the input and output capacitors close to the IC, using a solid ground plane, and minimizing trace lengths and widths to reduce EMI.
The inductor value depends on the input voltage, output voltage, and desired output current. A good starting point is to use the inductor selection guide provided by Texas Instruments or to consult with an applications engineer. Typically, a 2.2 μH to 4.7 μH inductor is suitable for most applications.
The BQ25896RTWT is rated for operation from -40°C to 125°C, but the maximum ambient temperature range depends on the specific application and the device's power dissipation. It's essential to ensure the device operates within its thermal limits to prevent overheating and ensure reliability.
The BQ25896RTWT has a built-in overcurrent protection feature that can be enabled by connecting the OCP pin to a resistor divider network. The resistor values determine the overcurrent threshold. Consult the datasheet for more information on implementing overcurrent protection.
The BQ25896RTWT is rated for input voltages up to 18 V, but it's not suitable for high-voltage applications above 24 V. For high-voltage applications, consider using a different device or adding external voltage regulation to ensure the input voltage remains within the device's rating.
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About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.
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