L6574 datasheet by STMicroelectronics

L6574 Frequently Asked Questions (FAQs)

• What is the maximum operating frequency of the L6574?
  The maximum operating frequency of the L6574 is 100 kHz, but it can be adjusted up to 500 kHz with an external resistor.
• How do I choose the right value for the bootstrap capacitor (CBOOT)?
  The bootstrap capacitor (CBOOT) should be chosen based on the maximum voltage and current requirements of the application. A general rule of thumb is to use a capacitor with a value between 10 nF to 100 nF.
• What is the purpose of the EN (enable) pin, and how do I use it?
  The EN (enable) pin is used to enable or disable the L6574. When the EN pin is high, the device is enabled, and when it's low, the device is disabled. This pin can be used to implement power-saving modes or to shut down the device when not in use.
• How do I calculate the output voltage of the L6574?
  The output voltage of the L6574 can be calculated using the formula: Vout = (1 + R2/R1) * Vin, where R1 and R2 are the feedback resistors, and Vin is the input voltage.
• What is the maximum input voltage that the L6574 can handle?
  The maximum input voltage that the L6574 can handle is 40 V. Exceeding this voltage may damage the device.