Hi there,
I've recently designed a board using the new TLC5955 LED controller IC. What bothers be however is that when supply power to the device (i.e. I connect only the VCC & GND lines), the power consumption shoots up to about 800mA, even though none of the LEDs are being driven. There are no shorts/low impedance paths between the VCC & GND lines. Is this normal for this IC?
Also, at the moment power is applied, all the LEDs turn on briefly and before reverting to an all-off state. Again, is this normal for this device?
I'm on a rather strict deadline to get this project completed, so any help would be greatly appreciated....
Kind regards,
Heinrich