Datasheet

BTS5045-2EKA
Diagnostic Functions
Data Sheet 34 Rev. 2.1, 2011-09-01
PROFET™+ 12V
7.4 Electrical Characteristics Diagnostic Function
Table 9 Electrical Characteristics: Diagnostics
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.
Load Condition Threshold for Diagnostic
Open load detection
threshold in OFF state
V
S
- V
OL(OFF)
4–6V
1)
V
IN
= 0 V
V
DEN
= 4.5 V
See Figure 26
P_7.5.1
Open load detection
threshold in ON state
I
L(OL)
5–30 mAV
IN
= V
DEN
= 4.5 V
I
IS(OL)
= 8 μA
See Figure 24
See Figure 46
P_7.5.2
Sense Pin
IS pin leakage current when
sense is disabled
I
IS_(DIS)
––1μA
1)
V
IN
= 4.5 V
V
DEN
= 0 V
I
L
= I
L4
= 4 A
P_7.5.4
Sense signal saturation
voltage
V
S
- V
IS
(RANGE)
0–3V
3)
V
IN
= 0 V
V
OUT
= V
S
> 10 V
V
DEN
= 4.5 V
I
IS
= 6 mA
See Figure 47
P_7.5.6
Sense signal maximum
current in fault condition
I
IS(FAULT)
61535 mAV
IS
= V
IN
= V
DSEL
= 0 V
V
OUT
= V
S
> 10 V
V
DEN
= 4.5 V
See Figure 20
See Figure 48
P_7.5.7
Sense pin maximum voltage
V
IS(AZ)
41 47 53 V I
IS
= 5 mA
See Figure 20
P_7.5.3
Current Sense Ratio Signal in the Nominal Area, Stable Load Current Condition
Current sense ratio
I
L0
= 50 mA
k
ILIS0
-50 1650 +50 % V
IN
= 4.5 V
V
DEN
= 4.5 V
See Figure 21
T
J
= -40 °C; 150 °C
P_7.5.8
Current sense ratio
I
L1
= 0.5 A
k
ILIS1
-16 1500 +16 % P_7.5.9
Current sense ratio
I
L2
= 1 A
k
ILIS2
-10 1480 +10 % P_7.5.10
Current sense ratio
I
L3
= 2 A
k
ILIS3
-7 1480 +7 % P_7.5.11
Current sense ratio
I
L4
= 4 A
k
ILIS4
-6.5 1480 +6.5 % P_7.5.12
k
ILIS
derating with current and
temperature
Δk
ILIS
-5 0 +5 %
3)
k
ILIS3
versus k
ILIS2
See Figure 22
P_7.5.17
Diagnostic Timing in Normal Condition