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L9924TR датащи(PDF) 7 Page - STMicroelectronics

номер детали L9924TR
подробное описание детали  Automotive vehicle conform truck car alternator regulator IC
PDF  85 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9924TR датащи(HTML) 7 Page - STMicroelectronics

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L9924
List of figures
7
List of figures
Figure 1.
Low-side configuration 12 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 2.
High-side configuration 12 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 3.
High-side configuration 24 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 4.
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 5.
Pin connection diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 6.
Internal resistor ladder on pin A+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 7.
VB overvoltage protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 8.
Internal resistor ladder on pin SENSE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 9.
LIN/BSS transmit, receive timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 10.
External MOS short circuit protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 11.
High-side configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 12.
L interface in lamp drive mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Figure 13.
Lamp driver overcurrent protection function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 14.
Flow chart of soft L switch-on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Figure 15.
Example of soft L switch-on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Figure 16.
Fault indicator lamp drive in alarm condition and key engaged . . . . . . . . . . . . . . . . . . . . . 36
Figure 17.
External high current lamp pre-driver circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Figure 18.
RC pin connection on alternator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Figure 19.
Squared signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Figure 20.
Internal voltage reference for ADC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Figure 21.
Temperature sensor output voltage vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Figure 22.
Timing diagram of watchdog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Figure 23.
Typical watchdog refresh sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Figure 24.
Persistent watchdog failure diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Figure 25.
Thermal shutdown diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Figure 26.
SPI timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Figure 27.
TQFP44 (10x10x1.0 mm exp. pad down) package outline. . . . . . . . . . . . . . . . . . . . . . . . . 81
Figure 28.
TQFP44 (6X6 pad size) PCB soldering pad footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82



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