JAJSET8B June 2014 – February 2018 DLPA2000
PRODUCTION DATA.
The DMD regulator is continuously monitored to check if the output rails are in regulation and if the inductor current increases as expected during a switching cycle. If either one of the output rails drops out of regulation (for example, due to a shorted output) or the inductor current does not increase as expected during a switching cycle (due to a disconnected inductor), the DMD_FLT interrupt bit is set in the INT register, the DMD_EN bit is reset, and the DMD regulator is shut down. Resetting the DMD_EN bit also causes the LED driver to power down. To restart the system, the PROJ_ON pin must be toggled. In case the interrupt is masked, it is sufficient to set the DMD_EN bit to restart the system.