sp000203741 Infineon Technologies Corporation, sp000203741 Datasheet - Page 18

• Manufacturer Part Number: sp000203741
• Description: Smart High-side Power Switch Profet Two Channels, 140 M ?
• Manufacturer: Infineon Technologies Corporation

4.3
For diagnosis purpose, the BTS 5231GS provides an Enhanced IntelliSense signal at
pins IS1 and IS2. This means in detail, the current sense signal
to the load current (ratio
Table
Figure 13
Table 1
Operation Mode
Normal Operation (OFF)
Short Circuit to GND
Over-Temperature
Short Circuit to
Open Load
Data Sheet
µC
R
R
lim
lim
1) occurs. In case of a failure mode,
R
IS1
R
Diagnosis
IS2
Block Diagram: Diagnosis
Truth Table
IN1
IS1
SEN
IN2
IS2
V
bb
R
R
R
SEN
IN1
IN2
GND
k
Input
Level
(OFF-State)
ILIS
1)
0
1
0
1
=
channel 1
channel 2
L
I
L
/
I
IS
0
1
gate control
), is provided as long as no failure mode (see
gate control
diagnosis
latch
V
Output Level
IS(fault)
18
V
VBB
<
>
IS(fault)
V
V
GND
GND
over temperature
V
OUT(OL)
OUT(OL)
open load @ off
Z
bb
over load
Smart High-Side Power Switch
is fed to the diagnosis pin.
I
I
IS1
IS2
V
V
IS
IS
SEN = H
S
V
=
=
OL
OUT(OL)
Diagnostic Output
Z
Z
Z
V
Z
V
I
IS
IS(fault)
IS(fault)
, a proportional signal
V1.0, 2005-12-19
BTS 5231GS
OUT1
OUT2
SEN = L
Diagnosis
Z
Z
Z
Z
Z
Z
Sense.emf
R
load
OL