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L9352B Datasheet(PDF) 18 Page - STMicroelectronics

Part # L9352B
Description  Intelligent quad (2 x 5A / 2 x 2.5A) low-side switch
PDF  27 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9352B Datasheet(HTML) 18 Page - STMicroelectronics

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Functional description
L9352B
18/27
4.9
Diagnostic
The status follows the input signal in normal operating conditions.
If any error is detected the status is inverted.
Table 9.
Diagnostic
Operating condition
Test
input
TEST
Enable
input
ENA
Control input
non-reg./reg. IN
Power
output/current
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
Clock failure (clock loss)(1)
L
L
L
L
L
L
H
H
L
H/PWM
L
H/PWM
OFF
OFF
OFF
OFF
H
H
H
L
Drift(2)
Failure
No failure
H
H
H
H
L
L
H
H
L
H/PWM
H/PWM
H/PWM
OFF
OFF
ON
ON
X
X
L
H
1.
during power on sequence only detected on channel 3 and 4 (see description).
2.
This input combination is also used for an internal chip-test and must not be used.



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