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L9788 Datasheet(PDF) 74 Page - STMicroelectronics

Part # L9788
Description  Multifunction IC for automotive engine management system
PDF  264 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9788 Datasheet(HTML) 74 Page - STMicroelectronics

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Multi-voltage regulator supplies
L9788
74/264
DS12308 Rev 4
6.4
External tracking regulator monitor
Vsense4_mon is an input pin for monitoring an external tracking regulator output voltage.
Conditions:
5.5 V < VB_IN_SW ≤ 18 V, Tj -40 to 175 °C unless otherwise specified.
Table 32. VTrack external components characteristics
Symbol
Parameter
Note
Min
Typ
Max
Unit
Pin
CVS1/2/3
VSENSE external
capacitor
ESR_max<20 mΩ Suggest
part numbers:
GCM188R71C105KA49D
470nF
-20%
0.47
20
µF
VSENSE1/2/3
Table 33. External VTrack monitor
Symbol
Parameter
Test condition
Min
Typ
Max Unit
Pin
VUV_VS_l
VSENSE4 undervoltage
threshold low
-
4.55
4.65
4.75
V
VSENSE4_MON
VUV_VS_h
VSENSE4 undervoltage
threshold high
-
4.7
4.8
4.95
V
VSENSE4_MON
VOV_VS
VSENSE4 overvoltage
threshold
-
5.3
5.4
5.55
V
VSENSE4_MON
TUV_filter_VS_running(1) Undervoltage filter time
Covered by
SCAN TEST
16
24
32
µs
VSENSE4_MON
TOV_filter_VS_running(1) Overvoltage filter time
Covered by
SCAN TEST
16
24
32
µs
VSENSE4_MON
1. Fault detection during power up sequence is masked until RSTN release to avoid false triggering at ramp-up phase.



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