PROFET
®
BTS621L1
Semiconductor Group 7 2003-Oct-01
Truth Table
IN1 IN2 OUT1 OUT2 ST
BTS621L1
Normal operation
L
L
H
H
L
H
L
H
L
L
H
H
L
H
L
H
H
H
H
H
Open load
Channel 1
L
L
H
L
H
X
Z
Z
H
L
H
X
H(L
13)
)
H
L
Channel 2
L
H
X
L
L
H
L
H
X
Z
Z
H
H(L
13)
)
H
L
Short circuit to V
bb
Channel 1
L
L
H
L
H
X
H
H
H
L
H
X
L
14)
H
H(L
15)
)
Channel 2
L
H
X
L
L
H
L
H
X
H
H
H
L
14)
H
H(L
15)
)
Overtemperature
both channel
L
X
H
L
H
X
L
L
L
L
L
L
H
L
L
Channel 1
L
H
X
X
L
L
X
X
H
L
Channel 2
X
X
L
H
X
X
L
L
H
L
Undervoltage/ Overvoltage X X L L H
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 12...13)
13)
With additional external pull up resistor
14)
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.
15)
Low resistance to
V
bb
may be detected in the ON-state by the no-load-detection
Terms
PROFET
V
IN2
ST
OUT2
GND
bb
V
ST
V
IN1
I
ST
I
IN1
V
bb
I
bb
I
L2
V
OUT2
I
GND
V
ON2
1
2
4
3
5
IN1
V
IN2
I
IN2
V
OUT1
V
ON1
I
L1
OUT1
6
7
R
GND
Input circuit (ESD protection)
IN
GND
I
R
ESD-ZD
I
I
I
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).
