TLE 8458G Infineon Technologies, TLE 8458G Datasheet - Page 9

• 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
The TLE8458Gx has 4 major operation modes:
•
•
•
•
The Normal Operation mode contains 2 sub-operation modes, which differentiate by the slew rate control of the
LIN Bus signal (see
Sub-operation modes with different slew rates on the BUS pin:
•
•
The operation mode of the TLE8458Gx is selected by the EN pin and the TxD pin. (see
Table 5
Mode
Normal Operation
Mode
Stand-By Mode
Sleep Mode
Stop Mode
1) The TxD pin acts as an input
2) The TxD pin acts as an output and indicates the wake-up source.The TxD input needs an external termination to indicate
Data Sheet
Normal Operation Mode
Stand-By Mode
Sleep Mode
Stop Mode
Normal Slope Mode, for data transmission rates up to 20 kBaud
Software Flash mode, for programming of the external microcontroller
a HIGH or a LOW signal. The external termination could be a pull-up resistor or an active microcontroller output.
Description of Mode Control
Operation Modes
EN
HIGH
LOW
LOW
LOW
Figure
3).
TxD
LOW
HIGH
LOW
HIGH
HIGH
LOW
1)
2)
RxD
LOW
HIGH
LOW
HIGH
Float
Float
V
ON
ON
OFF
ON
CC
9
LIN Bus
Termination
30 kΩ
(typical)
30 kΩ
(typical)
High
Impedance
High
Impedance
Comments
TxD drives the data to the bus,
RxD indicates the data on the
bus.
In Stand-By Mode the RxD and
TxD pins indicate the wake-up
source
For Sleep Mode TxD needs to
be HIGH for the time
For Stop Mode TxD needs to be
LOW for the time
Table
Rev. 1.01, 2009-04-28
5, see
TLE8458Gx
t
Mode Control
mode1
Figure
t
mode1
4).