L6370L 데이터 시트보기 (PDF) - STMicroelectronics
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L6370L Datasheet PDF : 10 Pages
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Figure 2: Undervoltage Comparator Hysteresis
Vshys
L6370
Figure 3: Switching Waveforms
Vin
Voth1
50%
Voth2 D95IN212
Vs
50%
td
Vout
td
t
50%
10%
tr
90%
90%
50%
10%
tf
t
D94IN127A
DIAGNOSTIC TRUTH TABLE
Diagnostic Conditions
Normal Operation
Open Load Condition (Io < Iold)
Short to VS
Short Circuit to Ground (IO = ISC) (**)
(pin ON-DELAY grounded)
Output DMOS Open
Overtemperature
Supply Undervoltage (VS < Vsth2)
Input
L
H
L
H
L
H
H
L
H
L
H
L
H
Output
L
H
L
H
H
H
H (*)
L
L
L
L
L
L
L
Diag1
H
H
H
L
L
L
H
H
H
L
H
H
L
L
Diag2
H
H
H
H
H
H
H
H
H
H
L
L
L
L
(*) According to the intervention of the current limiting block.
(**) A cold lamp filament, or a capacitive load may activate the current limiting circuit of the I PS, when the IPS is initially turned on.
5/10
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