Datasheet

BTS4175SGA
Diagnostic Mechanism
Data Sheet 21 Rev.1.0, 2008-04-29
7.3 Electrical Characteristics Diagnostic Functions
Electrical Characteristics: Diagnostics
V
S
= 13.5 V, T
j
= -40 °C to +150 °C, (unless otherwise specified) Typical values are given at V
s
= 13.5V, T
j
= 25°C
Pos. Parameter Symbol Limit Values Unit Conditions
Min. Typ. Max.
Load condition threshold for diagnostic
7.3.1 Open Load detection threshold
in OFF state
1)
1) External pull up resistor required for open load detection in OFF state
V
OL(OFF)
–3.04.0VV
IN
= 0V
7.3.1 Short circuit detection voltage
V
OUT(SC)
–2.8–V–
3)
ST pin
7.3.2 Status output (open drain)
High level; Zener limit voltage
V
ST (HIGH)
5.4 6.1 – V I
ST
= +1,6mA
2)
,
Zener Limit voltage
7.3.3 Status output (open drain)
Low level
V
ST (LOW)
––0.6VI
ST
=+1,6mA
2)
2) If ground resistor R
GND
is used, the voltage drop across this resistor has to be added
Diagnostic timing
7.3.4 Status invalid after positive input
slope
t
dST(+)
– 120 160 µs –
3)
3) Not subject to production test, specified by design
7.3.5 Status invalid after negative
input slope
t
dST(-)
– 250 400 µs –