JAJSMZ5B September 2021 – February 2022 DRV8311
PRODUCTION DATA
Differences in delays of dead time and propagation delay can cause mismatch in the output timings of PWMs, which can lead to duty cycle distortion. In order to accommodate differences in propagation delay between the conditions mentioned in Table 10-2, DRV8311 integrate a delay compensation feature.
Delay compensation is used to match delay times for currents going into and out of phase (OUTx) by adding a variable delay time (tvar) to match a preset target delay time equal to the propagation delay plus driver dead time (tpd + tdead). This setting is automatically configured by the DRV8311 when the DLYCMP_EN bit is set to 1.