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

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

V

L

Z

V

V

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

EF:

1 = No error

0 = Error

L = Output in sink condition

H = Output in source condition