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L99ASC03 Scheda tecnica(PDF) 6 Page - STMicroelectronics

Il numero della parte L99ASC03
Spiegazioni elettronici  Brushless / sensorless 3-phase motor pre-driver for automotive applications
PDF  73 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L99ASC03 Scheda tecnica(HTML) 6 Page - STMicroelectronics

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L99ASC03
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DocID023504 Rev 7
List of figures
Figure 1.
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 2.
Pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 3.
Supply voltage operation summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 4.
Watchdog in normal operation mode (part 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 5.
Watchdog in normal operation mode (part 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 6.
Watchdog in Flash Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 7.
Watchdog in failure mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 8.
Operating mode transitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 9.
Temperature modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 10.
CPLOW and NRDY bit behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 11.
HARDOFF functionality by using internal dead time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 12.
HARDOFF functionality by using external dead time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 13.
Persistent watchdog failure (VBAT Standby Mode entered after 15 watchdog faults). . . . . 29
Figure 14.
Persistent TSD2 failure (VBAT Standby Mode entered after 7 VDD turn-offs) . . . . . . . . . . . 29
Figure 15.
Watchdog timing (Long, Early, Late and Safe Window) . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Figure 16.
Watchdog missing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Figure 17.
Watchdog early, late and safe window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Figure 18.
Cross-current protection time generation when IHx and ILx are tied together . . . . . . . . . . 39
Figure 19.
Cross-current protection time generation when at tDT >tCCP is provided an input. . . . . . . 40
Figure 20.
SPI – timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Figure 21.
SPI global status register access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Figure 22.
SPI signal description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Figure 23.
SDI frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Figure 24.
SDO frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Figure 25.
BEMF detection stepping of BEMFCNT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Figure 26.
TQFP48-EP package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67



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