Datasheet

Data Sheet 10 Rev. 1.3, 2010-03-16
Smart High-Side Power Switch
BTS721L1
Se
mi
co
n
ducto
r
G
r
oup 9
2
003
-
Oct
-
0
1
Open-load detection, OUT1...4
ON-state diagnostic condition:
V
ON
< R
ON
· I
L(OL)
; IN high
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EE
287
21
9
21
OFF-state diagnostic condition:
V
OUT
> 3 V typ.; IN low
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9
287
6LJQDO*1'
5
(;7
5
2
2))
GND disconnect
(channel 1/2 or 3/4)

352)(7
9
,1
67
287
*1'
EE
9
EE
,
EE
,1
287
9
,1
9
,1
9
67
9
*1'
Any kind of load. In case of IN= high is V
OUT
≈ V
IN
- V
IN(T+)
.
Due to V
GND
> 0, no V
ST
= low signal available.
GND disconnect with GND pull up
(channel 1/2 or 3/4)
352)(7
9
,1
67
287
*1'
EE
9
EE
,1
287
9
,1
9
,1
9
67
9
*1'
Any kind of load. If V
GND
> V
IN
- V
IN(T+)
device stays off
Due to V
GND
> 0, no V
ST
= low signal available.
V
bb
disconnect with energized inductive
load
352)(7
9
,1
67
287
*1'
EE
9
EE
,1
287
KLJK
For an inductive load current up to the limit defined by E
AS
(max. ratings see page 3 and diagram on page 10) each
switch is protected against loss of V
bb
.
Consider at your PCB layout that in the case of Vbb dis-
connection with energized inductive load the whole load
current flows through the GND connection.