BQ24230RGTR datasheet by Texas Instruments

BQ24230RGTR Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for the BQ24230RGTR to ensure optimal performance?
  A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the input and output capacitors close to the IC, and use short, wide traces for the power paths. Refer to the TI application note 'BQ24230RGTR PCB Layout Guidelines' for more details.
• How do I select the right input and output capacitors for the BQ24230RGTR?
  Choose X5R or X7R ceramic capacitors with a voltage rating of at least 1.5 times the maximum input voltage. For the input capacitor, a 10uF to 22uF capacitor is recommended. For the output capacitor, a 10uF to 47uF capacitor is recommended. Ensure the capacitors are placed close to the IC and have a low ESR.
• What is the maximum ambient temperature range for the BQ24230RGTR?
  The BQ24230RGTR is rated for operation from -40°C to 85°C. However, the device can be operated up to 105°C with derating. Refer to the datasheet for thermal derating curves.
• How do I configure the BQ24230RGTR for a specific output voltage?
  The output voltage is set using the FB pin and an external resistor divider network. The resistor values can be calculated using the formulae provided in the datasheet. For example, for a 5V output, R1 = 10kΩ and R2 = 2.2kΩ.
• What is the purpose of the EN pin on the BQ24230RGTR, and how do I use it?
  The EN pin is an active-high enable input that allows the device to be turned on and off. Connect the EN pin to a logic high (e.g., VCC) to enable the device, and connect it to a logic low (e.g., GND) to disable the device.