Power-Off -> Power-On (Auto-Power-On Case); Power-On -> Power-Off (Long Power Button Press); Figure 6-9. Power-Off To On Sequence Auto Power-On Case; Table 6-4. Power-Off To On Timing Auto Power-On Case - Nvidia Jetson Orin NX Series Product Manual

6.1.1.3 Power-Off -> Power-On (Auto-Power-On Case)
In the auto power on case, the MCU enables
power source. This case is selected when MCU
The signal representing the power button to the Orin module (
following the power button behavior. However, once the power ON sequence is initiated by the
connection of the main power source, and
from 3V3_AO), the power button signals will not affect the MCU behavior until the
signal verification is complete.
Figure 6-9. Power-Off to On Sequence Auto Power-On Case
SLEEP/WAKE*
ACOK
VDD_DCIN
SHUTDOWN_REQ*
POWER_EN
SYS_RESET*
Carrier Board 1.8V/
3.3V Supplies
Table 6-4. Power-Off to On Timing Auto Power-On Case
Timing Parameter
T_AC_DET ACOK assertion detect (de-bounce only)
T_VPWR_ON_AC Delay from ACOK detected high with main power source applied to
POWER_EN
T_PE_RST SYS_RESET* inactive delay from POWER_EN rising edge
6.1.1.4 Power-On -> Power-Off (Long Power Button Press)
With the system in power-on state, the user holds the power button for either more than about
4 seconds (medium button press) or about 10 seconds (long button press). The same button
signal is relayed to Orin module through the
case, the system will do a software-controlled shutdown. For the long button press case,
system is forced to shut down at about the 10 second mark without software involvement.
PRELIMINARY INFORMATION
Jetson Orin NX Series and Jetson Orin Nano Series
as soon as the user connects the main
POWER_EN
is driven high.
ACOK
is driven high (by push-pull driver powered
ACOK
T_AC_DET + T_VPWR_ON_AC
signal. For the medium button press
POWER_EN
pin) will continue
SLEEP/WAKE*
PWR_GOOD
T_PE_RST
Typical
20
80
80
DG-10931-001_v1.1 | 24
Power
Units
ms
ms
ms