TLE 8263E Infineon Technologies, TLE 8263E Datasheet - Page 66

• Manufacturer Part Number: TLE 8263E
• Manufacturer: Infineon Technologies

Specifications of TLE 8263E

• Packages: PG-DSO-36
• Transceiver: High Speed CAN ISO 11898 - 5 / 2 x LIN2.1 / J2602
• Voltage Regulator Output: 2 x 200 mA + 400 mA
• Watchdog: Standard and Window Watchdog
• Quiescent Current (max.): 28 ?A (typ) Sleep Mode (5V on)
• Standby Current: 58 ?A (typ) Stop Mode (5V on)

13
13.1
The Limp Home output is a very useful way to control safety critical functions independent of the microcontroller,
such as turning on or off critical load during a microcontroller failure.
13.2
The Limp Home output is an active LOW open drain transistor, please refer to
to connect at least an external pull-up resistor at.
The Limp Home output is activated due to a failure condition or via SPI, see
the Limp Home cannot be activated and remains as a high impedance.
Figure 31
13.2.1
The Test pin is used to set the SBC chip into SBC Software Development Mode. When the Test pin is connected
to GND, the SBC starts in SBC Software Development Mode. When the pin is left open, or connected to
SBC starts into normal operation. Please refer to
(switched ON only during SBC Init Mode) to prevent the SBC device from starting in SBC Software Development
Mode during normal life of the vehicle, as for example when the battery has been disconnected. To avoid
disturbance, the Test pin is monitored during the Init Mode (from the time
pin is low for the Init Mode time, Software Development Mode is reached. The mode is stored during the complete
time where
OFF mode.
Data Sheet
V
Limp Home
Description
Limp Home output
Limp Home block diagram
Test Pin
S
is above
V
UVOFF
Limp home logic
. It means to leave Software Development Mode, the SBC must go back to SBC
Figure
66
3. The Test pin has an integrated pull-up resistor
LIMP HOME.VSD
V
S
Figure
>
Limp home
Chapter
V
UVON
31; therefore, it is necessary
until Init Mode is left). If the
13.3. If
Rev. 1.0, 2009-03-31
V
s
is below
TLE8263E
Limp Home
V
V
LHUV
s
the
,