The recommended power-on sequence is to apply VCC first, followed by VREF, and then the input signals. This ensures proper device operation and prevents latch-up.
The TLC5628 has a built-in current limiting feature that protects the device from excessive output current. However, it's recommended to add external resistors to limit the output current to the specified maximum value to prevent damage to the device or the load.
The maximum clock frequency of the TLC5628 is 50 MHz. However, the actual clock frequency may be limited by the specific application and the quality of the clock signal.
Proper thermal management is crucial to ensure reliable operation of the TLC5628. This can be achieved by providing adequate heat sinking, using a thermally conductive PCB material, and keeping the device away from heat sources.
The recommended layout and routing for the TLC5628 involves keeping the analog and digital signals separate, using short traces, and avoiding vias and right-angle bends. A good layout and routing practice can help minimize noise and ensure reliable operation.
TLC5628IDWR datasheet
by Texas Instruments
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