DLPS037F October 2014 – June 2021 DLPC900
It is difficult to set up a power monitor to trip exactly on the controller minimum supply voltage specification. Thus for practical reasons, the external power monitor generating POSENSE must target its threshold to 90% of the minimum supply voltage specifications and ensure that POSENSE remains low a sufficient amount of time for all supply voltages to reach minimum DLPC900 and DMD requirements and stabilize. The trip voltage for detecting the loss of power, as well as the reaction time to respond to a low voltage condition is critical for powering down the DMD. Refer to Section 6.7 for details on powering up and powering down the DLPC900 and the DMD.