L6561 datasheet by STMicroelectronics

L6561 Frequently Asked Questions (FAQs)

• What is the recommended input capacitor value for the L6561?
  The recommended input capacitor value for the L6561 is 10uF to 22uF, depending on the input voltage and current requirements. A larger capacitor value can help to reduce input voltage ripple and improve overall system stability.
• How do I set the output voltage of the L6561?
  The output voltage of the L6561 can be set using the feedback resistors R1 and R2. The output voltage is determined by the ratio of R1 to R2, according to the formula: Vout = 2.5V x (1 + R2/R1).
• What is the maximum input voltage that the L6561 can handle?
  The maximum input voltage that the L6561 can handle is 18V. Exceeding this voltage can damage the device.
• How do I protect the L6561 from overcurrent conditions?
  The L6561 has a built-in overcurrent protection feature that can be enabled by connecting a resistor (Roc) between the OC pin and ground. The value of Roc determines the overcurrent threshold.
• Can I use the L6561 in a synchronous rectification configuration?
  Yes, the L6561 can be used in a synchronous rectification configuration to improve efficiency. This requires an external N-channel MOSFET and a few additional components.