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L9788 Datasheet(PDF) 119 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) 119 Page - STMicroelectronics

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DS12308 Rev 4
119/264
L9788
High/low-side drivers - STARTER STR[1:3]
263
Figure 45. DELAY_OFF timing
Figure 46. DELAY_OFF timing terminated by MSC off command
Conditions:
5.5 V ≤ VB_IN ≤ 18 V, Tj -40 to 175 °C unless otherwise specified;
GADG0512161117PS
reset
Delay off trigger status
Delay off timer
Delay off output
Remaining power stages
no trigger event
no trigger event
Eg. VDD5_UV
Count up
reset
ON
ON
OFF
OFF
ON
OFF
OFF
ON
OFF
ON
Start of delayed
off mode
Delayed off timer
overflow
MSC
Drivers ON
MSC
Drivers OFF
reset
Delay off trigger status
Delay off timer
Delay off output
Remaining power stages
no trigger event
no trigger event
Eg. VDD5_UV
Count up
reset
ON
OFF
OFF
ON
OFF
OFF
OFF
OFF
< THOLD
ON
ON
ON
ON
OFF
ON
Start of delayed
off mode
MSC
MSC
Drivers ON
MSC
Drivers ON
MSC
Drivers OFF
Drivers OFF
MSC
Drivers OFF
GADG0512161118PS
Table 51. High/low-side driver delay-off function electrical characteristics
Symbol
Parameter
Test condition
Min
Typ
Max
Unit
Pin
THOLD
Delay off time
-
400
-
800
ms
RLY4 STR2/3



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