TLE 5205-2
Diagnosis
Data Sheet 8 Rev. 1.1, 2007-07-31
2 Diagnosis
Various errors as listed in the table “Diagnosis” are detected. Short circuits and overload
result in turning off the output stages after a delay
t
dSD
and setting the error flag
simultaneously [EF = L]. Changing the inputs to a state where the fault is not detectable
resets the error flag (input toggling) with the exception of short circuit from OUT1 to
OUT2 (load short circuit).
Flag IN1 IN2 OUT1 OUT2 EF Remarks Nr.
Open circuit between OUT1 and OUT2
0
0
1
1
0
1
0
1
H
L
L
Z
L
H
L
Z
1
1
1
0
Not detectable
Not detectable
Not detectable
1
2
3
4
Short circuit from OUT1 to OUT2
0
0
1
1
0
1
0
1
V
S
/2
V
S
/2
L
Z
V
S
/2
V
S
/2
L
Z
0
0
1
1
Not detectable
Not detectable
5
6
7
8
Short circuit from OUT1 to GND
0
0
1
1
0
1
0
1
GND
GND
GND
GND
L
H
L
L
0
1
1
1
Not detectable
Not detectable
Not detectable
9
10
11
12
Short circuit from OUT2 to GND
0
0
1
1
0
1
0
1
H
L
L
L
GND
GND
GND
GND
1
0
1
1
Not detectable
Not detectable
Not detectable
13
14
15
16
Short circuit from OUT1 to
V
S
0
0
1
1
0
1
0
1
V
S
V
S
V
S
V
S
L
H
H
H
1
0
0
1
Not detectable
Not detectable
17
18
19
20
Short circuit from OUT2 to
V
S
0
0
1
1
0
1
0
1
H
L
H
H
V
S
V
S
V
S
V
S
0
1
0
1
Not detectable
Not detectable
21
22
23
24
Overtemperature or undervoltage 0
0
1
1
0
1
0
1
Z
Z
Z
Z
Z
Z
Z
Z
0
0
0
0
25
26
27
28
IN: 0 = Logic LOW
1 = Logic HIGH
OUT: Z = Output in tristate condition
=
V
S
/2 due to internal Pull-up/down resistors
EF: 1 = No error
0 = Error
L = Output in sink condition
H = Output in source condition
