What is meant in the datasheet, pg. 80 by "The TON_DELAY will have a typical delay of 270μs with an uncertainty of ±50μs."?
Is the 270us an additional delay when TON_DELAY is used? Is there a 270us delay even if TON_DELAY is set to zero?
LTC3883 (datasheet page 80):
270us +/-50us is the additional typical delay time of TON_DELAY even if TON_DELAY is set to 0.
Example: When TON_DELAY is set to 1ms, the actual measured total TON_DELAY will be 1ms+( 270us+/-50us).