bts5235l Infineon Technologies Corporation, bts5235l Datasheet - Page 19

• Manufacturer Part Number: bts5235l
• Description: Smart High-side Power Switch
• Manufacturer: Infineon Technologies Corporation

4.3
For diagnosis purpose, the BTS 5235L provides an Enhanced IntelliSense signal at pins
IS1 and IS2. This means in detail, the current sense signal
the load current (ratio
occurs. In case of a failure mode, the voltage
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
R
IS1
R
Diagnosis
IS2
Block Diagram: Diagnosis
Truth Table
IN1
IS1
SEN
IN2
IS2
V
bb
R
R
R
SEN
IN1
IN2
k
GND
ILIS
=
1)
I
L
/
Level
Input
0
1
0
1
I
IS
channel 1
channel 2
L
), is provided as long as no failure mode (see
0
1
gate control
gate control
diagnosis
latch
V
IS(fault)
19
VBB
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>
Output
V
Level
V
V
GND
GND
over temperature
V
OUT(OL)
OUT(OL)
IS(fault)
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
I
S
V
IS
=
=
OL
OUT(OL)
Diagnostic Output
, a proportional signal to
Z
Z
Z
V
Z
V
IS(fault)
IS(fault)
V1.0, 2005-12-19
OUT1
OUT2
BTS 5235L
SEN = L
Diagnosis
Table
Z
Z
Z
Z
Z
Z
Sense.emf
R
load
OL
1)