Texas Instruments provides a recommended PCB layout in the application note SLUA451, which includes guidelines for component placement, routing, and thermal management to ensure optimal performance and minimize electromagnetic interference (EMI).
The selection of external components depends on the specific application and design requirements. Texas Instruments provides a component selection guide in the application note SLUA451, which includes formulas and guidelines for selecting the inductor, capacitor, and resistor values based on the input voltage, output voltage, and output current requirements.
The BQ24401DR is rated for operation from -40°C to 125°C ambient temperature range. However, the device's performance may degrade at higher temperatures, and the output voltage may drop. It is recommended to follow the thermal management guidelines in the application note SLUA451 to ensure optimal performance and reliability.
The BQ24401DR has built-in OVP and UVP features, but they can be adjusted or customized using external resistors and capacitors. The application note SLUA451 provides guidelines for implementing OVP and UVP using the device's internal comparators and external components.
The recommended input capacitor type is a low-ESR ceramic capacitor, and the value depends on the input voltage and output current requirements. A minimum of 10uF is recommended, but a larger value may be required for high-input-voltage or high-output-current applications. The input capacitor value affects the device's stability, output voltage ripple, and transient response.
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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.
