TLE7251V_15 Datasheet, PDF (13/36 Pages) Infineon Technologies AG – High Speed CAN-Transceiver with Bus Wake-up

TLE7251VLE
TLE7251VSJ
Functional Description
4.3.4
Undervoltage on the Digital Supply V_IO
If the voltage on V_IO supply input falls below the threshold V_IO < V_IO(UV,F), the transceiver TLE7251V powers down
and changes to the power-down state.
The undervoltage detection on the digital supply V_IO has the highest priority. It is independent of the transmitter
supply V_CC and also independent of the currently selected operating mode. An undervoltage event on V_IO always
powers down the TLE7251V.
transmitter supply voltage VCC = “don’t care”
VIO
VIO undervoltage monitor
VIO(UV,F)
hysteresis
VIO(UV,H)
VIO undervoltage monitor
VIO(UV,R)
tDelay(UV) delay time undervoltage
any mode of operation
power-down state
STB
“X” = don’t care
1) _{assuming no external signal applied}
Figure 6 Undervoltage on the digital supply V_IO
t
stand-by mode
“high” due the internal
pull-up resistor¹⁾
t
Data Sheet
13
Rev. 1.0, 2015-09-10