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BTS426L1
P1-P3
P4-P6
P7-P9
P10-P12
P13-P14
BTS426L1
Semiconductor Gr
oup
10
2003-Oct-01
Timing diagr
ams
Figure 1a:
V
bb
turn on:
IN
V
OUT
t
V
bb
ST o
pen d
rain
proper t
urn on under all
condit
ions
Figure 2a:
Switching a lamp,
IN
ST
OUT
L
t
V
I
Figure 2b:
Switching an inductive load
IN
ST
L
t
V
I
*)
OUT
t
d(ST)
I
L(OL)
*) i
f the ti
me const
ant of l
oad is t
oo large, open-
load-s
tatus
may occ
ur
Figure 3a:
Short circuit
shut down by overtempertature, reset by cooling
IN
ST
L
t
I
L(SCr
)
I
I
L(SCp
)
Heating up may r
equire
several millis
econds,
depending on exte
r
nal conditions
BTS426L1
Semiconductor Gr
oup
11
2003-Oct-01
Figure 4a:
Overtemperature:
Reset if
T
j
<
T
jt
IN
ST
OUT
J
t
V
T
Figure 5a:
Open load: detection in ON-state, turn on/off to open
load
IN
ST
OUT
L
t
V
I
open
t
d(ST
)
t
d(ST
OL4
)
The status delay time t
d(ST OL4)
allows to ditinguish betw
een
the failure modes "open load" and "overtemperature".
Figure 5b:
Open load: detection in ON-state, open load occurs in
on-state
IN
ST
OUT
L
t
V
I
open
nor
mal
norma
l
t
d(S
T OL1
)
t
d(S
T OL2
)
t
d(ST OL1)
= 20
µ
s typ., t
d(ST OL2)
= 10
µ
s typ
Figure 5c:
Open load: detection in ON- and OFF-state (with
R
EXT
), turn on/off to open load
IN
ST
OUT
L
t
V
I
open
t
d(
ST)
BTS426L1
Semiconductor Gr
oup
12
2003-Oct-01
Figure 6a:
Undervoltage:
IN
V
OUT
t
V
bb
ST open
drain
V
V
bb(unde
r)
bb(u rst)
bb(u
cp)
V
Figure 6b:
Undervoltage restart of charge pump
bb(under)
V
V
bb(u rst)
V
bb(over)
V
bb(o rst)
V
bb(u
cp
)
off-state
on-state
V
ON(CL)
V
bb
V
on
off-state
charge pump s
tart
s at
V
bb(ucp)
=5.6 V typ
.
Figure 7a:
Overvoltage:
IN
V
OUT
t
V
bb
ST
ON(CL)
V
V
bb(over)
V
bb(o r
st)
P1-P3
P4-P6
P7-P9
P10-P12
P13-P14
BTS426L1
Mfr. #:
Buy BTS426L1
Manufacturer:
Infineon Technologies
Description:
IC HIGH SIDE PWR SWITCH TO220-5
Lifecycle:
New from this manufacturer.
Delivery:
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