TLE6251-3G Datasheet, PDF (16/36 Pages) Infineon Technologies AG – High Speed CAN-Transceiver with Wake and Failure Detection

TLE6251-3G
Wake-Up Functions
6.3
Mode Change via the EN and NSTB pin
Besides a mode change issued by a Wake-Up event, the operation mode on the TLE6251-3G can be changed by
changing the signals on the EN and NSTB pins. Therefore the power supplies V_CC and V_IO have to be active.
According to the mode diagram in Figure 4 the operation mode can be changed directly from Sleep mode to the
Receive-Only mode, Normal Operation mode. A change from Sleep mode direct to Stand-By mode is only possible
via a Wake-Up event. For example by setting the NSTB pin and the EN pin to logical “High” the TLE6251-3G
changes from Sleep mode to Normal Operation mode (see Figure 8).
The pins EN and NSTB have a hysteresis between the logical “Low” and the logical “High” signal in order to avoid
any toggling during the operation mode change.
NSTB
V_M,H
EN
V_M,H
t_hSLP
V_M,L
t
V_M,L
INH
t_Mode
t_Mode
t
Sleep mode
Normal Operation
mode
Figure 8 Wake-Up via Mode Change
Go-To-Sleep
command
t
Sleep mode
Data Sheet
16
Rev. 1.1, 2011-06-06