BTS409L1
Data Sheet 7 2013-10-10
Truth Table
L = "Low" Level X = don't care Z = high impedance, potential depends on external circuit
H = "High" Level Status signal after the time delay shown in the diagrams (see fig 5. page 11...12)
)
Power Transistor off, high impedance
)
with external resistor between pin 3 and pin 5
)
An external short of output to V
bb
, in the off state, causes an internal current from output to ground. If R
GND
is used, an offset voltage at the GND and ST pins will occur and the V
ST low
signal may be errorious.
)
Low resistance to V
bb
may be detected in ON-state by the no-load-detection
Terms
PROFET
V
IN
ST
OUT
GND
bb
V
ST
V
IN
I
ST
I
IN
V
bb
I
bb
I
L
V
OUT
I
GND
V
ON
1
2
4
3
5
R
GND
Input circuit (ESD protection)
ESD zener diodes are not to be used as voltage clamp
at DC conditions. Operation in this mode may result in
a drift of the zener voltage (increase of up to 1 V).
Status output
ST
GND
ESD-
ZD
+5V
R
ST(ON)
ESD-Zener diode: 6.1 V typ., max 5 mA;
R
ST(ON)
< 380 at 1.6 mA, ESD zener diodes are not
to be used as voltage clamp at DC conditions.
Operation in this mode may result in a drift of the zener
voltage (increase of up to 1 V).
Inductive and overvoltage output clamp
V
ON
clamped to 47 V typ.