Datasheet

Data Sheet 35 Rev. 2.1, 2011-09-01
PROFET™+ 12V
BTS5045-2EKA
Diagnostic Functions
Current sense settling time to
k
ILIS
function stable after
positive input slope on both
INput and DEN
t
sIS(ON)
0–250μs
3)
V
DEN
= V
IN
= 0 to
4.5 V
V
S
= 13.5 V
R
IS
= 1.2 kΩ
C
SENSE
< 100 pF
I
L
= I
L3
= 2 A
See Figure 23
P_7.5.18
Current sense settling time
with load current stable and
transition of the DEN
t
sIS(ON_DEN)
0–20μs
1)
V
IN
= 4.5 V
V
DEN
= 0 to 4.5 V
R
IS
= 1.2 kΩ
C
SENSE
< 100 pF
I
L
= I
L3
= 2 A
See Figure 23
P_7.5.19
Current sense settling time to
I
IS
stable after positive input
slope on current load
t
sIS(LC)
0–20μs
1)
V
IN
= 4.5 V
V
DEN
= 4.5 V
R
IS
= 1.2 kΩ
C
SENSE
< 100 pF
I
L
= I
L2
= 1 A to I
L
= I
L3
= 2 A
See Figure 23
P_7.5.20
Diagnostic Timing in Open Load Condition
Current sense settling time to
I
IS
stable for open load
detection in OFF state
t
sIS(FAULT_OL_
OFF)
0–150μs
1)
V
IN
= 0V
V
DEN
= 0 to 4.5 V
R
IS
= 1.2 kΩ
C
SENSE
< 100 pF
V
OUT
= V
S
= 13.5 V
See Figure 26
P_7.5.22
Diagnostic Timing in Overload Condition
Current sense settling time to
I
IS
stable for overload
detection
t
sIS(FAULT)
0–250μs
1) 2)
V
IN
= V
DEN
= 0 to
4.5 V
R
IS
= 1.2 kΩ
C
SENSE
< 100 pF
V
DS
= 5 V
See Figure 19
P_7.5.24
Current sense over
temperature blanking time
t
sIS(OT_blank)
– 350 – μs
3)
V
IN
= V
DEN
= 4.5 V
R
IS
= 1.2 kΩ
C
SENSE
< 100 pF
V
DS
= 5 V to 0 V
See Figure 19
P_7.5.32
Table 9 Electrical Characteristics: Diagnostics (cont’d)
V
S
= 8 V to 18 V, T
J
= -40°C to +150°C (unless otherwise specified).
Typical values are given at
V
S
= 13.5 V, T
J
= 25 °C
Parameter Symbol Values Unit Note /
Test Condition
Number
Min. Typ. Max.