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UM0324 Datasheet(PDF) 49 Page - STMicroelectronics

Part # UM0324
Description  This user manual describes
PDF  105 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

UM0324 Datasheet(HTML) 49 Page - STMicroelectronics

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UM0324
Library functions
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Otherwise, if the difference of duty cycles between Phase B and A is long enough to allow
only one A/D conversion to be performed between Phase B low side switch on and Phase A
high side switch off, the strategy shown in Figure 33 is used.
In Figure 33, TRise represents the time required by the analog voltage on the shunt resistor
of a phase (signal ‘Current feedback of Phase B’) to settle after a commutation of the low
side switch belonging to the same phase.
Figure 31.
Low side duty cycle Phase A < DT+TN+TS and ΔDutyA-B >
DT+TN+2TS+TH+TDMA
Figure 32.
Low side duty cycle Phase A < DT+TN+TS and DT+TRise+TS < ΔDutyA-B <
DT+TN+2TS+TH+TDMA



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