BTS 5120-2EKA Infineon Technologies, BTS 5120-2EKA Datasheet - Page 27

• Manufacturer Part Number: BTS 5120-2EKA
• Manufacturer: Infineon Technologies

Specifications of BTS 5120-2EKA

• Packages: PG-DSO-14
• Channels: 2.0
• Ron @ Tj = 25°c: 120.0 mOhm
• Recommended Operating Voltage Min.: 5.0 V
• Recommended Operating Voltage Max.: 28.0 V
• Il(sc): 9.0 A

7
For diagnosis purpose, the BTS5120-2EKA provides a combination of digital and analog signals at pin IS. These
signals are called SENSE. In case the diagnostic is disabled via DEN, pin IS becomes high impedance. In case
DEN is activated, the SENSE of the channel X is enabled/disabled via associated pin DSEL.
truth table.
Table 7
DEN
0
1
1
7.1
The BTS5120-2EKA provides a SENSE current written
circuit to GND / current limitation / overtemperature / excessive dynamic temperature increase or open load at
OFF) a proportional signal to the load current (ratio
mechanism is described on
The IS pin multiplexes the current
between
recommended to share the IS pin with other devices if these devices are using another battery feed. The
consequence is that the unsupplied device would be fed via the IS pin of the supplied device.
Figure 20
Data Sheet
PROFET™+ 12V
k
ILISCHANNEL0
IS Pin
Diagnostic Functions
Diagnostic Truth Table
Diagnostic Block Diagram
DSEL
DEN
IS
and
DSEL
don’t care
0
1
k
ILISCHANNEL1
Figure
Z
IS(AZ)
I
20. The accuracy of the SENSE depends on temperature and load current.
IS(0)
0
1
is optimized. Due to the ESD protection, in connection to
and
I
IS(1)
, via the pin DSEL. Thanks to this multiplexing, the matching
k
ILIS
I
27
IS
Z
Sense output 0
Sense output 1
IS
=
at pin IS. As long as no “hard” failure mode occurs (short
1
0
I
L
/
V
I
IS
s
I
I
IS0
L0
) is provided. The complete IS pin and diagnostic
/ k
=
ILIS
I
I
FAULT
IS(0)
IS(1)
I
IS(FAULT)
Sense schematic.svg
I
I
IS1
L1
/ k
Diagnostic Functions
=
Rev. 2.1, 2011-09-01
ILIS
BTS5120-2EKA
Table 7
V
S
, it is not
gives the