TLE7250_15 Datasheet, PDF (11/34 Pages) Infineon Technologies AG – High Speed CAN-Transceiver

TLE7250LE
TLE7250SJ
Functional Description
4.3
Power-up and Undervoltage Condition
By detecting an undervoltage event or by switching off the transmitter power supply V_CC, the transceiver TLE7250
changes the mode of operation (details see Figure 5).
V_CC “on”
NEN “0”
NRM “1”
normal-operating
mode
NEN NRM V_CC
0
1 “on”
power-down
state
NEN NRM V_CC
“X” “X” “off”
V_CC “on”
NEN “0”
NRM “0”
V_CC “on”
NEN “0”
NRM “1”
V_CC “on”
NEN “1”
NRM “X”
V_CC “on”
NEN “0”
NRM “X”
power-save
mode
NEN NRM V_CC
1 “X” “on”
V_CC “on”
NEN “0”
NRM “0”
V_CC “on”
NEN “0”
NRM “1”
receive-only
mode
NEN NRM V_CC
0
0 “on”
V_CC “on”
NEN “1”
NRM “X”
V_CC “on”
NEN “0”
NRM “0”
Figure 5 Power-up and undervoltage
Table 2 Modes of operation
Mode
NEN
NRM
V_CC
Normal-operating “low”
“high” “on”
Power-save
“high”
“X”
“on”
Receive-only
“low”
“low”
“on”
Power-down state “X”
“X”
“off”
Bus-bias Transmitter Normal-mode Low-power
Receiver
Receiver
V_CC/2
“on”
“on”
floating “off”
“off”
not available
not available
V_CC/2
“off”
“on”
floating “off”
“off”
not available
not available
Data Sheet
11
Rev. 1.0, 2015-08-12