JAJSET8B June 2014 – February 2018 DLPA2000
PRODUCTION DATA.
DLPA2000 contains three switch-mode power supplies that power the DMD. These rails are VOFS, VBIAS, and VRST. After pulling the PROJ_ON pin high, the DMD is first initialized followed by a power-up of the VOFS line after a small delay of less than 10 ms followed by VBIAS and VRST with an additional delay of 145 ms. The LED driver and STROBE DECODER circuit can only be enabled after all three rails are enabled. There are two power-down sequences, the normal power-down timing initiated after pulling the PROJ_ON pin low, and a fast power-down mode where if any one of the rails encounters a fault such as an output short, all three rails are discharged simultaneously. The detailed power-up and power-down diagrams are shown in Figure 4 and Figure 5.
NOTE
All values are typical (unless otherwise noted).
NOTE
All values are typical (unless otherwise noted).