ZHCSQ30 December 2022 DRV8317
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 9-2, DRV8317 integrates 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 + tDRV_DEAD). This (tvar) setting is automatically configured by the DRV8317 when the DLYCMP_EN bit is set to 1b.