ST STM32G471 User Manual

RM0440 Rev 4 933/2126
RM0440 High-resolution timer (HRTIM)
1083
Figure 248. Auxiliary and main outputs during burst mode (DIDLx = 0)
The signal on the auxiliary output can be slightly distorted when exiting from the burst mode
or when re-enabling the outputs after a delayed protection, if this happens during a
deadtime. In this case, the deadtime applied to the auxiliary outputs is extended so that the
deadtime on the main outputs is respected. Figure 249 gives some examples.
Figure 249. Deadtime distortion on auxiliary output when exiting burst mode
MS32291V2
IDLES level
IDLES level
Burst mode
entry
Burst mode
exit
IDLES level continued
up to the transition to
the opposite level
HRTIM_CHx1
HRTIM_CHx2
Auxiliary
output2
Auxiliary
output1
MS32292V2
IDLES = 0
IDLES = 0
IDLES = 1
IDLES = 0
Burst exit
Out1 reset request
HRTIM_CHx1
HRTIM_CHx2
Auxiliary
output2
Auxiliary
output1
HRTIM_CHx1
HRTIM_CHx2
Auxiliary
output2
Auxiliary
output1
Case 1: transition request
to the same level as
IDLES
Same deadtime for main
and auxiliary outputs
Case 2: transition request
to a level opposite to
IDLES
Deadtime on auxiliary
output is extended
Programmed
deadtime
Programmed
deadtime
Extended
deadtime

ST STM32G471 Specifications

General

Brand	ST
Model	STM32G471
Category	Microcontrollers
Language	English