Datasheet

BTS5045-2EKA
Diagnostic Functions
Data Sheet 28 Rev. 2.1, 2011-09-01
PROFET™+ 12V
7.2 SENSE Signal in Different Operating Modes
Table 8 gives a quick reference for the state of the IS pin during device operation.
Table 8 Sense Signal, Function of Operation Mode
Operation Mode Input level Channel X DEN
1)
1) The table doesn’t indicate but it is assumed that the appropriate channel is selected via the DSEL pin.
Output Level Diagnostic Output
Normal operation OFF H Z Z
Short circuit to GND ~ GND Z
Overtemperature Z Z
Short circuit to
V
S
V
S
I
IS(FAULT)
Open Load < V
OL(OFF)
> V
OL(OFF)
2)
2) With additional pull-up resistor.
Z
I
IS(FAULT)
Inverse current ~ V
INV
I
IS(FAULT)
Normal operation ON ~ V
S
I
IS
= I
L
/ k
ILIS
Current limitation < V
S
I
IS(FAULT)
Short circuit to GND ~ GND I
IS(FAULT)
Overtemperature T
J(SW)
event
Z I
IS(FAULT)
Short circuit to V
S
V
S
I
IS
< I
L
/ k
ILIS
Open Load ~ V
S
3)
3) The output current has to be smaller than I
L(OL)
.
I
IS
< I
IS(OL)
Inverse current ~ V
INV
I
IS
< I
IS(OL)
4)
4) After maximum t
INV
.
Underload ~ V
S
5)
5) The output current has to be higher than I
L(OL)
.
I
IS(OL)
< I
IS
< I
L(nom)
/ k
ILIS
Don’t care Don’t care L Don’t care Z