SLUS652E March 2005 – April 2020 UCD8220
PRODUCTION DATA.
Refer to the PDF data sheet for device specific package drawings
The UCD8220 device has a built-in handshaking feature to facilitate efficient start-up of the digitally managed power supply. At start-up the CLF flag is held high until all the internal and external supply voltages of the UCD8220 device is within its operating range. When the supply voltages are within acceptable limits, the CLF flag goes low and the device processes the CLK signals. The digital controller should monitor the CFL flag at start-up and wait for the CLF flag to go low before sending CLK pulses to the UCD8220 device.