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L9396 Datasheet(PDF) 86 Page - STMicroelectronics

Part # L9396
Description  Automotive multiple power supply IC
PDF  109 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9396 Datasheet(HTML) 86 Page - STMicroelectronics

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System functional safety implementations
L9396
86/109
DS12539 Rev 10
BOOST OT
FAILSAFE FAULT
MASKED
FAILSAFE FAULT
FAILSAFE FAULT
BUCK OT
FAILSAFE FAULT
MASKED
FAILSAFE FAULT
FAILSAFE FAULT
VCC OT
FAILSAFE FAULT
MASKED
FAILSAFE FAULT
FAILSAFE FAULT
CP OT
FAILSAFE FAULT
MASKED
FAILSAFE FAULT
FAILSAFE FAULT
VCC UV/OV
FAILSAFE FAULT
FAILSAFE FAULT
MASKED
FAILSAFE FAULT
VCORE UV/OV
FAILSAFE FAULT
FAILSAFE FAULT
MASKED
FAILSAFE FAULT
VCC5 UV/OV
FAILSAFE FAULT
FAILSAFE FAULT
MASKED
FAILSAFE FAULT
SPI ERROR
FAILSAFE FAULT
FAILSAFE FAULT
FAILSAFE FAULT
FAILSAFE FAULT
Table 56. Masking bits and fault sources (continued)
-
FAILSAFE / FAULT
OUTPUT
WD1 and WD2
FAULT MASK
FAILSAFE / FAULT
OUTPUT
THERMAL WARNING
MASK
FAILSAFE / FAULT
OUTPUT
µC VOLTAGE FAULT
MASK
FAILSAFE / FAULT
OUTPUT
BOOST FAULT
MASK
Table 57. Fail safe output
Symbol
Parameter
Conditions/Comments
Min.
Typ.
Max.
Unit
VOL
FSN Logic Output
Low Voltage
5 kΩ tied to VCC
-
-
0.4
V
VOH
FSN Logic Output
High Voltage
5 kΩ tied to VCC
VCC-
0.05
-
-
V
tr
Rise time
Load = 50 pF; 20%-80%
-
-
1
µs
tf
Fall time
Load = 50 pF; 20%-80%
-
-
1
µs
Ileak_FSN
FSN leakage
current
FSN output off
0 < FSN < VCC
-2
-
2
µA
TFSN_DELAY
FSN digital
assertion delay
Guaranteed by scan,
ADV_CONFIG[7:9]=000
0
mS
TFSN_DELAY
FSN digital
assertion delay
Guaranteed by scan,
ADV_CONFIG[7:9]=001
0
-
2
mS
TFSN_DELAY
FSN digital
assertion delay
Guaranteed by scan,
ADV_CONFIG[7:9]=010
2
-
4
mS
TFSN_DELAY
FSN digital
assertion delay
Guaranteed by scan,
ADV_CONFIG[7:9]=011
6
-
8
mS
TFSN_DELAY
FSN digital
assertion delay
Guaranteed by scan,
ADV_CONFIG[7:9]=100
8
-
10
mS
TFSN_DELAY
FSN digital
assertion delay
Guaranteed by scan,
ADV_CONFIG[7:9]=101
28
-
30
mS
TFSN_DELAY
FSN digital
assertion delay
Guaranteed by scan,
ADV_CONFIG[7:9]=110
48
-
50
mS
TFSN_DELAY
FSN digital
assertion delay
Guaranteed by scan,
ADV_CONFIG[7:9]=111
98
-
100
mS



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