TLE6251G_08 Datasheet, PDF (13/32 Pages) Infineon Technologies AG – High Speed CAN-Transceiver with Wake Detection

TLE 6251 G
Split Circuit
The split circuitry is activated during normal and RxOnly mode and deactivated (SPLIT pin high
ohmic) during sleep and standby mode. The SPLIT pin is used to stabilize the recessive common
mode signal in normal mode and RxOnly mode. This is realized with a stabilized voltage of 0.5
V_CC at SPLIT.
CANH
TLE 6251 G/DS
SPLIT
CANL
60 Ω
Split
Termination
10
nF
60 Ω
CAN
Bus
60 Ω
Split
Termination
60 Ω
10
nF
Split
Termination
at Stub
1.5 kΩ
1.5 kΩ
CANH SPLIT CANL
TLE 6251 G/DS
CANH
TLE 6251 G/DS
SPLIT
10
nF
CANL
AEA03399.VSD
Figure 5
Application example for the SPLIT Pin
A correct application of the SPLIT pin is shown in Figure 5. The split termination for the left and
right node is realized with two 60 Ω resistances and one 10 nF capacitor. The center node in this
example is a stub node and the recommended value for the split resistances is 1.5 kΩ.
Diagnosis-Flags at NERR and RxD
Power-Up Flag
• Task: to signalize a power-up state at V_BAT
Final Data Sheet
13
Rev. 3.3, 2008-06-19