TLE8250 datasheet(10/31 Pages) INFINEON

10 / 31 page

Data Sheet

Rev. 1.0

2016-07-15

TLE8250

High Speed CAN Transceiver

Functional Description

4.3.1

Power-down State

Independent of the NEN and NRM input pins the is in power-down state when the transmitter supply voltage

VCC is turned off (see Figure 5).

In the power-down state the input resistors of the receiver are disconnected from the bus biasing VCC/2. The

CANH and CANL bus interface of the is floating and acts as a high-impedance input with a very small leakage

current. The high-ohmic input does not influence the recessive level of the CAN network and allows an

optimized EME performance of the entire HS CAN network (see also Table 2).

4.3.2

Power-up

The HS CAN transceiver powers up if the transmitter supply VCC is connected to the device. By default the

device powers up in power-save mode, due to the internal pull-up resistor on the NEN pin to VCC.

In case the device needs to power-up to normal-operating mode, the NEN pin needs to be pulled active to

logical “low” while the NRM pin is logical “high” (see Figure 5).

TLE8250 Datasheet(PDF) 10 Page - Infineon Technologies AG