TLE8250G_14 Datasheet, PDF (11/24 Pages) Infineon Technologies AG – High Speed CAN-Transceiver

TLE8250G
Fail Safe Functions
Supply voltage V_CC
Power down reset level
V_CC(UV)
Time for mode change
t_Mode
NEN = 0
NRM = 1
Normal Operation
Mode
Stand-By
Mode
Blanking time
t_blank,UV
Normal Operation Mode¹⁾
1) _{Assuming the logical signal on the pin NEN and on the pin NRM keep its values during}
the under-voltage event. In this case NEN remains „Low“ and NRM remains „High“.
Figure 6 Under-Voltage detection on V_CC
5.5
Over-Temperature protection
Overtemperature Event
T_J
T_{JSD (Shut Off temperature)}
Cool Down
T_{J (Shut On temperature)}
t
CANH
CANL
t
TxD
t
RxD
t
Figure 7 Over-Temperature protection
The TLE8250G has an integrated over-temperature detection to protect the device against thermal overstress of
the output driver stage. In case of an over-temperature event, the temperature sensor will disable the output driver
stage (see Figure 1). After the device cools down the output driver stage is activated again (see Figure 7).
Inside the temperature sensor a hysteresis is implemented.
Data Sheet
11
Rev. 1.1, 2014-10-09