TLE8250G_14 Datasheet, PDF (20/24 Pages) Infineon Technologies AG – High Speed CAN-Transceiver

TLE8250G
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 TLE8250G switches the RxD output to GND. Vice versa to produce a logical “High” signal the
TLE8250G switches the RxD output to V_CC.
The level V_RxD,H for a logical “High” signal on the RxD output depends on the load on the RxD output pin and
therefore on the RxD output current I_RD,H. For a load against the GND potential, the current I_RD,H is flowing out of
the RxD output pin.
Similar to the logical “High” signal, the level V_RxD,L for a logical “Low” signal on the RxD output pin depends on the
output current I_RD,L. For a load against the power supply V_CC the current I_RD,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
TLE8250G are marked negative inside the data sheet (see Table 6).
7,000
6,000
5,000
4,000
3,000
2,000
1,000
V_RxD,H=4.6V; typical output current
V_CC=5V
V_RxD,H=4.6V; typical output current
+ 6sigma; V_CC=5V
V_RxD,H=4.6V; typical output current
- 6sigma; V_CC=5V
0,000
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150
Temperature in °C
Figure 11 RxD Output driver capability for a logical “High” signal¹⁾
The diagram in Figure 11 shows the output current capability of the RxD output pin depended on the chip
temperature T_J. At a logical “High” signal V_RxD,H = 4.6 V, the typical output current is between 5.7 mA for -40 °C
and 4.7 mA for a temperature of +150 °C. The dependency of the output current on the temperature is almost
linear. The upper curve “V_RxD,H = 4.6 V; typical output current + 6 sigma; V_CC=5 V” reflects the expected
maximum value of the RxD output current of the TLE8250G.
The lower curve “V_RxD,H = 4.6 V; typical output current - 6 sigma; V_CC=5 V” reflects the expected minimum value
of the RxD output current of the TLE8250G. All simulations are based on a power supply V_CC = 5.0 V.
1) Characteristics generated by simulation and specified by design. Production test criteria is described in Table 6;
Pos.: 7.1.8
Data Sheet
20
Rev. 1.1, 2014-10-09