TLE6251-2G_11 Datasheet, PDF (21/36 Pages) Infineon Technologies AG – High Speed CAN-Transceiver with Wake and Failure Detection

TLE6251-2G
Fail Safe Features
The under-voltage monitoring on the power supply V_CC and V_IO is combined with an internal filter time. Only if the
voltage drop on each of these two power supplies is longer present as the time t_Drop > t_UV(VIO) (t_Drop > t_UV(VCC)) the
operation mode change will be activated (see Figure 12).
Under-voltage events on the power supplies V_CC or V_IO are not indicated by the NERR pin nor by the RxD pin.
V_CC
VCC,UV
t < t_UV(VCC)
t > t_UV(VCC)
t
INH
V_IO
VIO,UV
INH
Normal Operation mode / Receive–Only mode / Stand–By mode
or Go-To Sleep command
t < t_UV(VIO)
t > t_UV(VIO)
t
Sleep mode
t
Normal Operation mode / Receive–Only mode / Stand–By mode
or Go-To Sleep command
Figure 12 Under-Voltage on V_IO or V_CC
t
Sleep mode
Data Sheet
21
Rev. 1.1, 2011-06-06