Data Sheet

8

Rev. 1.0, 2010-09-03

TLE8250GVIO

Functional Description

4.2

Operation Modes

Two different operation modes are available on TLE8250GVIO. Each mode with specific characteristics in terms

of quiescent current or data transmission. For the mode selection the digital input pin NEN is used. Figure 4

illustrates the different mode changes depending on the status of the NEN pin. After suppling

V

HS CAN transceiver, the TLE8250GVIO starts in Stand-By mode. The internal pull-up resistor is setting the

TLE8250GVIO to Stand-By per default. If the microcontroller is up and running the TLE8250GVIO can change to

operation mode within the time for mode change

t

Figure 4

Operation Modes

The TLE8250GVIO has 2 major operation modes:

•

Stand-By mode

•

Normal Operation mode

Table 2

Operating modes

Mode

NEN

Bus Bias

Comments

Normal Operation

“Low”

V

Output driver stage is active.

Receiver unit is active.

Stand-By

“High”

Floating

Output driver stage is disabled.

Receiver unit is disabled.

V

“Low”

or

“High”

Floating

Output driver stage is disabled.

Receiver unit is disabled.