TLC5628CDWG4 datasheet by Texas Instruments

TLC5628CDWG4 Frequently Asked Questions (FAQs)

• What is the recommended power-on sequence for the TLC5628?
  The recommended power-on sequence is to apply VCC first, followed by VREF, and then the digital inputs. This ensures proper device operation and prevents latch-up.
• How do I ensure accurate DAC output voltage levels?
  To ensure accurate DAC output voltage levels, make sure to use a low-impedance voltage reference (VREF) and decouple it with a capacitor to ground. Also, use a low-noise power supply and minimize digital noise on the device.
• What is the maximum clock frequency for the TLC5628?
  The maximum clock frequency for the TLC5628 is 40 MHz. Exceeding this frequency may result in incorrect data transfer and device malfunction.
• Can I use the TLC5628 with a 3.3V power supply?
  Yes, the TLC5628 can operate with a 3.3V power supply. However, the output voltage range will be limited to 0-3.3V. If you need a wider output voltage range, use a 5V power supply.
• How do I handle the power-down mode (PD pin) in my application?
  When the PD pin is low, the device enters power-down mode, and the DAC output is disconnected from the output pin. To exit power-down mode, bring the PD pin high. Ensure that the PD pin is properly debounced to prevent unwanted mode transitions.