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BTS6480SF Fiches technique(PDF) 49 Page - Infineon Technologies AG

No de pièce BTS6480SF
Description  SPI Power Controller
PDF  73 Pages
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Fabricant  INFINEON [Infineon Technologies AG]
Site Internet  http://www.infineon.com
Logo INFINEON - Infineon Technologies AG

BTS6480SF Fiches technique(HTML) 49 Page - Infineon Technologies AG

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SPOC - BTS6480SF
Diagnosis
Data Sheet
49
Rev. 1.0, 2010-04-12
9.3
Sense Synchronization during Automatic PWM Generation
For performing current sense measurements there is a current sense synchronization signal at the pin ISSY
available. This signal indicates the possible start of
V
IS measurement. The synchronization signal will be activated
after the time
t
Measurement delay after channel’s activation. The delay time can be configured via SPI register
CHCRn.SYDEL
. The current sense synchronization signal is only available during the automatic PWM generation,
i.e. the bit PCR.PST is set.
Figure 23 shows the functionality of the current sense synchronization signal.
Figure 23
Current Sense Synchronization
SenseSynchronization.emf
t
V
PCLK
t
PCR.PST
t
V
OUT0
t
OUT.OUT0
t
V
OUT1
t
t
V
ISSY
t
Synch. delay1
t
V
IS
t
DCR.MUX
001
001
000
001
t
Synch. delay0
t
sIS(ON)
OUT.OUT1
t
Ch. phase shift1



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