TLE 6251 G

Final Data Sheet

13

Rev. 3.3, 2008-06-19

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

AEA03399.VSD

Split

Termination

TLE 6251 G/DS

CANH

CANL

SPLIT

10

nF

TLE 6251 G/DS

CANH

CANL

SPLIT

60

Ω

60

Ω

Split

Termination

10

nF

SPLIT

TLE 6251 G/DS

CANL

CANH

10

nF

1.5

k

Ω

1.5

k

Ω

CAN

Bus

Split

Termination

at Stub

60

Ω

60

Ω

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 k

Ω.

Diagnosis-Flags at NERR and RxD

Power-Up Flag

•

Task: to signalize a power-up state at

V

BAT