TLE 8458G Infineon Technologies, TLE 8458G Datasheet - Page 16

• Manufacturer Part Number: TLE 8458G
• Manufacturer: Infineon Technologies

Specifications of TLE 8458G

• Packages: PG-DSO-8
• Transmission Ratemax: 20.0 kbit/s
• Quiescent Current (max.): < 10 µA sleep mode
• Bus Wake-up Capability: Yes
• Additional Features: Vreg, EN, WK
• Wake-up Inputs: Bus wake-up + wake-up pin

5.2.6
After a power - up the device enters per default into Stand - By Mode. Above
the supply
signal on the TxD pin.
Figure 9
5.2.7
The TLE8458Gx is protected against thermal over-heating. Over-heating could be caused by a short circuit on the
V
an over-temperature event, the TLE8458Gx eliminates the root cause of the over-temperature event. Two different
temperature sensors are implemented inside the TLE8458Gx. One temperature sensor protects the voltage
regulator and controls the output voltage
stage.
In case the junction temperature on the LIN output stage raises above the threshold T >
sensor disables the LIN output stage. The TLE8458Gx is still able to receive data from the LIN bus. If the
temperature falls below the threshold, T <
start again. An integrated hysteresis on the temperature sensor avoids toggling during over-temperature events.
An over-temperature event on the LIN bus will not cause any operation mode change.
In case the junction temperature on the
temperature sensor shuts down the output voltage
T >
avoids toggling during over-temperature events.
Data Sheet
CC
T
power supply or by a permanent short on the LIN bus combined with a high ambient temperature. In case of
SD,VCC
V
, the power supply
S
Power Up
Power Up Level
Over-Temperature Protection
closely. In Stand - By Mode, the power up is indicated by a HIGH signal on the RxD pin and a LOW
V
CC
will be enabled again. An integrated hysteresis on the temperature sensor
V
V
CC
T
CC
SD,LIN
, the second temperature sensor protects the LIN transmitter output
power output stage raises above the threshold T >
, the output stage will be enabled and the communication can
V
CC
16
. If the junction temperature falls below the threshold,
V
S,PU
the
V
CC
T
Rev. 1.01, 2009-04-28
SD,LIN
output voltage follows
, the temperature
TLE8458Gx
Mode Control
T
SD,VCC
, the