BTS425L1 查看數據表（PDF） - Siemens AG
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BTS425L1 Datasheet PDF : 12 Pages
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Figure 5a: Open load: detection in ON-state, turn
on/off to open load
BTS 425 L1
Figure 5c: Open load: detection in ON- and OFF-state
(with REXT), turn on/off to open load
IN
IN
t
ST
d(ST)
td(ST OL4)
ST
t
d(ST)
V
OUT
V
OUT
I
L
open
I
L
t
open
The status delay time td(ST OL4) allows to ditinguish between
the failure modes "open load" and "overtemperature".
Figure 5b: Open load: detection in ON-state, open
load occurs in on-state
IN
td(ST OL1)
ST
t d(ST OL2)
Figure 6a: Undervoltage:
IN
V bb
V
bb(under)
VOUT
V OUT
t
Vbb(u cp)
Vbb(u rst)
I
normal
L
open
normal
ST open drain
t
t
td(ST OL1) = 20 µs typ., td(ST OL2) = 10 µs typ
Semiconductor Group
10
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