TLC5917QDRQ1 datasheet by Texas Instruments

TLC5917QDRQ1 Frequently Asked Questions (FAQs)

• What is the maximum current rating for each output channel?
  The TLC5917QDRQ1 has a maximum current rating of 120mA per output channel, making it suitable for driving LEDs, relays, and other loads.
• How do I ensure that the device is properly powered and configured?
  To ensure proper operation, connect VCC to a 3.3V or 5V power supply, and make sure the EN pin is tied high or connected to VCC. Also, configure the device using the I2C interface by sending the correct commands and data to the device.
• What is the purpose of the OE (Output Enable) pin?
  The OE pin is used to enable or disable all output channels simultaneously. When OE is low, all outputs are disabled, and when OE is high, all outputs are enabled according to their individual output registers.
• How do I handle thermal protection and overcurrent protection?
  The TLC5917QDRQ1 has built-in thermal protection and overcurrent protection. If the device exceeds the maximum junction temperature (TJ) or output current, it will automatically shut down to prevent damage. Once the device has cooled down or the fault is removed, it will automatically restart.
• What is the recommended layout and routing for the device?
  To minimize electromagnetic interference (EMI) and ensure reliable operation, follow good PCB layout practices, such as keeping the device's power and ground pins close together, using a solid ground plane, and minimizing trace lengths and loops.