TLC2558IDWR datasheet by Texas Instruments

TLC2558IDWR Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that can be used with TLC2558IDWR?
  The maximum clock frequency for the TLC2558IDWR is 40 MHz. However, it's recommended to use a clock frequency of 20 MHz or less to ensure reliable operation and to minimize power consumption.
• How do I properly terminate the output of the TLC2558IDWR?
  The TLC2558IDWR has a high-impedance output stage, so it's recommended to use a pull-up or pull-down resistor to terminate the output. A 1 kΩ to 10 kΩ resistor is typically used, depending on the specific application requirements.
• Can I use the TLC2558IDWR in a 5V system?
  The TLC2558IDWR is a 3.3V device, but it can tolerate 5V inputs. However, the output voltage will still be limited to 3.3V. If you need a 5V output, you may need to use a level translator or a separate 5V buffer.
• How do I handle the power-on reset (POR) of the TLC2558IDWR?
  The TLC2558IDWR has a built-in POR circuit that resets the device during power-up. To ensure proper operation, make sure to provide a clean power-up sequence with a stable voltage supply. You can also use an external reset signal to reset the device if needed.
• What is the maximum output current of the TLC2558IDWR?
  The maximum output current of the TLC2558IDWR is 24 mA per channel. However, it's recommended to limit the output current to 10 mA or less to ensure reliable operation and to minimize power consumption.