TLE8250GVIO_16 datasheet(20/26 Pages) INFINEON

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Data Sheet

Rev. 1.11

2016-12-29

TLE8250GVIO

High Speed CAN-Transceiver

Application Information

8.2

Output Characteristics of the RxD Pin

The RxD output pin is designed as a push-pull output stage (see Figure 1), meaning to produce a logical “Low”

signal the TLE8250GVIO switches the RxD output to GND. Vice versa to produce a logical “High” signal the

TLE8250GVIO switches the RxD output to VIO.

The level VRXD,H for a logical “High” signal on the RxD output depends on the load at the RxD output pin and

therefore on the RxD output current IRD,H. The voltage level VRxD,H also depends on the voltage of the power

supply VIO. According to the operating range (see Table 4) the power supply VIO can vary between 3.0 V and

5.5 V. At a VIO supply of 5 V the output current of the RxD pin on the TLE8250GVIO is higher as in comparison for

a VIO supply of 3.3 V. For a load against the GND potential, the current IRD,H is flowing out of the RxD output pin.

Similar to the logical “High” signal, the level VRXD,L for a logical “Low” signal on the RxD output pin depends on

the input current IRD,L and the power supply voltage VIO. For a load against the power supply VIO the current IRD,L

is flowing into the RxD output pin.

Currents flowing into the device are marked positive inside the data sheet and currents flowing out of the

device TLE8250GVIO are marked negative inside the data sheet (see Table 6).

The diagram in Figure 11 shows the output current capability of the RxD output pin depended on the chip

temperature TJat a VIO power supply of 5.0 V. Figure 12 shows the output current capability of the RxD output

pin at a VIO power supply of 3.3 V.

Both diagrams show the output current for a logical “High” level VRxD,H =4.6 V. The CAN transceiver

TLE8250GVIO provides a logical “High” signal on the RxD output while the signal on the CAN bus is “Recessive”

(see Figure 3):

•The curve “VRxD,H = 4.6 V; typ. output current; VCC = 5.0 V; VIO =5.0 V;” displays the typical output current

at the RxD output pin of the TLE8250GVIO (see Figure 11).

For this graph VCC =5.0 V and VIO =5.0 V.

•The curve “VRxD,H = 4.6 V; typ. output current + 6 sigma; VCC = 5.0 V; VIO =5.0 V;” displays the expected

maximum value of the output current at the RxD output pin (see Figure 11).

For this graph VCC =5.0 V and VIO =5.0 V.

•The curve “VRxD,H = 4.6 V; typ. output current - 6 sigma; VCC = 5.0 V; VIO =5.0 V;” displays the expected

minimum value of the output current at the RxD output pin (see Figure 11).

For this graph VCC =5.0 V and VIO =5.0 V.

•The curve “VRxD,H = 4.6 V; typ. output current; VCC = 5.0 V; VIO =3.3 V;” displays the typical output current

at the RxD output pin of the TLE8250GVIO (see Figure 12).

For this graph VCC =5.0 V and VIO =3.3 V.

•The curve “VRxD,H = 4.6 V; typ. output current + 6 sigma; VCC = 5.0 V; VIO =3.3 V;” displays the expected

maximum value of the output current at the RxD output pin (see Figure 12).

For this graph VCC =5.0 V and VIO =3.3 V.

•The curve “VRxD,H = 4.6 V; typ. output current - 6 sigma; VCC = 5.0 V; VIO =3.3 V;” displays the expected

minimum value of the output current at the RxD output pin (see Figure 12).

For this graph VCC =5.0 V and VIO =3.3 V.

The diagram in Figure 13 and the diagram in Figure 14 show the current capability of the RxD output pin

depended on the chip temperature TJ. Figure 13 shows the current capability of the RxD output pin at a VIO

power supply of 5.0 V and Figure 14 shows the current capability of the RxD output pin at a VIO power supply

of 3.3 V.

Both diagrams show the output current for a logical “Low” level VRxD,H = 0.4 V. The CAN transceiver

TLE8250GVIO provides a logical “Low” signal on the RxD output while the signal on the CAN bus is “Dominant”

(see Figure 3):

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