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L99ASC03 bảng dữ liệu(PDF) 29 Page - STMicroelectronics

tên linh kiện L99ASC03
Giải thích chi tiết về linh kiện  Brushless / sensorless 3-phase motor pre-driver for automotive applications
PDF  73 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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L99ASC03 bảng dữ liệu(HTML) 29 Page - STMicroelectronics

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L99ASC03
Device description
72
Figure 13. Persistent watchdog failure (VBAT Standby Mode entered after 15 watchdog faults)
Figure 14. Persistent TSD2 failure (VBAT Standby Mode entered after 7 VDD turn-offs)
2.19
Serial peripheral interface (ST SPI standard)
A 16-bit ST SPI is used for bi-directional communication with an external microcontroller.
Through SPI it is possible to trigger the watchdog, control the operating modes, adjust some
device parameters and read out diagnostic information of several device modules.
During standby modes, the SPI is generally deactivated.
The SPI has to be driven in the following mode:
VDD
Short circuit at VDD turn-on
VDDFAIL = 1
Read & Clear VDDFAIL
Temperature
Tj>TSD2 for 7 times
(VDDR = 111)
TSD2 = 1
Read & Clear TSD2
Table 6. Forced VBAT standby mode
Source
Cause
Diagnosis
Clear error flag
VDD
Forced
VBAT Standby
tTSD
1
t
Counter
2
3
4
5
6
7



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