TLE6210G Datasheet, PDF (28/35 Pages) Infineon Technologies AG – ABS System IC

TLE 6210
TLE 6211
Block Description and Electrical Characteristics
4.11.1 Watchdog Logic
Table 2 and Figure 11 show the watchdog logic. figure 12 shows the logic
implementation
Watchdog WD1, Clock SILA NSILA MR
WD2
Time between
Edges
VR EN
ok
ok
= SIA = not SIA = not L Z
MRA
< 3 * t_CLK
> 15 * t_CLK
> 120 * t_CLK
ok
Table 2
ok
L
Z
Z
ZL
ok
L
Z
Z
ZL
ok
L
Z
Z
ZL
error L
Z
Z
ZL
Watchdog and Clock Supervision Truth Table
RES1/2
H
H
H
H
H
Error
Flag
L
L
L
H
H
The table assumes that no other error is detected, especially no undervoltage or
overvoltage at the supply and regulator output.
Z: High impedance
V1.2 Data Sheet
28
2002-08