UCD7100PWPR datasheet by Texas Instruments

UCD7100PWPR Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance?
  A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the analog and digital sections separate, and use a star-connection for the power supplies to minimize noise.
• How do I ensure accurate voltage regulation with the UCD7100PWPR?
  Use a high-quality output capacitor with low ESR, and ensure the input voltage is within the recommended range. Also, use a low-noise, low-ESR input capacitor to filter the input voltage.
• What is the maximum output current capability of the UCD7100PWPR?
  The maximum output current is 1.5A per channel, but it's recommended to derate the output current based on the ambient temperature and the desired output voltage.
• How do I configure the UCD7100PWPR for a specific output voltage?
  Use the VOUTx pins to set the output voltage. Connect a resistor divider network between VOUTx and GND to set the desired output voltage. The ratio of the resistors determines the output voltage.
• What is the purpose of the ENx pins on the UCD7100PWPR?
  The ENx pins are active-low enable inputs that allow you to turn on or off individual channels. When ENx is low, the corresponding channel is enabled, and when ENx is high, the channel is disabled.