TLE6252G Datasheet, PDF (8/25 Pages) Siemens Semiconductor Group – Fault Tolerant Differential CAN Transceiver

TLE 6252 G
Normal Operation
NSTB = 0
NSTB ENT INH
1
1 HIGH
ENT = 0
V_CC = 1
ENT = 1
V_CC = 1
(NSTB = 0
ENT = 0)
or
V_CC = 0
NSTB = 1
ENT = 1
V_CC = 1
NSTB = 1
ENT = 1
V_CC = 1
V_CC Stand-By
NSTB ENT INH
1
0 HIGH
NSTB = 1
V_CC = 1
NSTB = 0 or
V_CC = 0
V_BAT Stand-By
NSTB ENT INH
0
0 HIGH
NSTB = 0
ENT = 1
NSTB = 1
ENT = 0
V_CC = 1
ENT = 0
t _<t_h
NSTB = 1
V_CC = 1
Go to Sleep
NSTB ENT INH
0
1 float.
ENT = 1
t _>t_h
ENT = 1
NSTB = 1
V_CC = 1
ENT = 1
V_CC = 1
(Wake-Up from
bus or via WAKE pin)
V_BAT
t _> t _WO
Sleep Mode
NSTB ENT INH
0
0 float.
AED02413
Figure 4 State Diagram
The transceiver will stay in a present operating mode until a suitable condition disposes
a state change. If not otherwise defined all conditions are AND-combined. The signals
V_CC and V_BAT show if the supply is available (e.g. V_CC = 1 : V_CC voltage is present). If at
minimum one supply voltage is switched on, the start-up procedure begins (not figured).
After a delay time the device changes to normal operating or stand-by mode.
Semiconductor Group
8
1998-11-01