TLC5951DAPR datasheet by Texas Instruments

TLC5951DAPR Frequently Asked Questions (FAQs)

• What is the maximum frequency of the clock input?
  The maximum frequency of the clock input is 25 MHz, but it's recommended to keep it below 10 MHz for reliable operation.
• How do I handle the thermal shutdown feature?
  The TLC5951DAPR has a built-in thermal shutdown feature that turns off the device when it overheats. To handle this, ensure good thermal design, use a heat sink if necessary, and implement a thermal monitoring system to detect and respond to thermal shutdown events.
• What is the recommended layout for the device's power supply pins?
  To minimize noise and ensure reliable operation, it's recommended to use a star topology for the power supply pins, with a single point of connection to the power plane, and to use decoupling capacitors close to the device.
• How do I program the grayscale data?
  The TLC5951DAPR uses a 5-bit grayscale data format. To program the grayscale data, use the GSCLK pin to clock in the data, and ensure that the data is latched on the rising edge of the GSCLK signal.
• What is the purpose of the OUTEN pin?
  The OUTEN pin is an output enable pin that allows the device to tri-state the output pins. When OUTEN is low, the output pins are enabled, and when it's high, the output pins are tri-stated.