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L9347 Datasheet(PDF) 18 Page - STMicroelectronics

Part # L9347
Description  Intelligent quad (2x5A/2x2.5A) low-side switch
PDF  29 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9347 Datasheet(HTML) 18 Page - STMicroelectronics

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Functional Description
L9347
18/29
For more details about the test conditions see timing diagrams in Section 4.
3.9
Diagnostic table
The status follows the input signal in normal operating conditions.
If any error is detected the status is inverted.
Table 8.
Special test mode functionality
EN
In
Test
Out
Status
Note
1
X
X
X
X
disable test mode
1
1
1
on
1
Drift mode
0
X
off
test pattern
test condition one
0
X
off
test pattern
test condition two
0
X
off
test pattern
test condition three
0
0
off
test pattern
test condition four
0
1
on
test pattern
test condition four
Table 9.
Diagnostic table
Operating Condition
Test
Input
TEST
Enable
Input
ENA
Control
Input non-
reg./reg. IN
Power
Output/Curr
ent reg. Q
Status
Output
ST
Normal function
L
L
L
L
L
L
H
H
L
H/PWM
L
H/PWM
OFF
OFF
OFF
ON
L
L
L
H
Open load or short to ground
L
L
L
L
L
L
H
H
L
H/PWM
L
H/PWM
OFF
OFF
OFF
ON
X
X
H
L
Overload or short to supply
Latched overload
Reset latch
Reset latch
L
L
L
L
H
H
H –> L
H
H/PWM
H/PWM
X
H/PWM –> L
OFF
OFF
OFF
OFF
L
L
L
L
Overtemperature
Latched overtemperature
Reset latch
Reset latch
L
L
L
L
H
H
H –> L
H
H/PWM
H/PWM
X
H/PWM –> L
OFF
OFF
OFF
OFF
L
L
L
L
Recirculation error (reg.chn.)
Latched error
Reset latch
Reset latch
L
L
L
L
H
H
H –> L
H
PWM
PWM
X
PWM –> L
OFF
OFF
OFF
OFF
L
L
L
L



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