Power Supply And Sequencing - Nvidia Jetson Orin NX Series Product Manual

Module Pin
Pin # Name Orin Pin Name Usage and Description
239 SYS_RESET*
178 MOD_SLEEP* SF_PWR_SOC_E
N
210 CLK_32K_OUT (Power
sequencer 32K
CLK Out)
217 GND
(Module ID)
Notes:
1. Modules with pin 217 (Module ID) tied to GND support only 5V on VDD_IN. Modules with pin 217 floating (pulled high on carrier
board) support full voltage range. Pull-up voltage on the carrier board on the module ID strap pin is up to the carrier board
designer.
2. In the Direction column, Output is from Orin module. Input is to Orin module. Bidir is for Bidirectional signals.
3. The directions for FORCE_RECOVERY* and SLEEP/WAKE* signals are true when used for those functions. Otherwise as GPIOs,
the direction is bidirectional.
6.1

Power Supply and Sequencing

The carrier board receives the main power source and uses this to generate the enable to
Jetson Orin module (
POWER_EN
and the associated decoupling capacitors have charged. The carrier board supplies are not
enabled at this time. Once
When the module Power-ON sequence has completed, the
(pulled high on module) and this is used by the carrier board to enable its various supplies.
Note: The carrier board cannot drive high or pull high any signals that are associated with the
module when the module rails are off. If the designer cannot guarantee a signal will not be
driven or pulled high, then either the power rail related to that signal should be left off, or the
signals would need to be buffered to isolate them from the module pins. The buffers should only
be enabled towards the module when SYS_RESET* goes high.
PRELIMINARY INFORMATION
Jetson Orin NX Series and Jetson Orin Nano Series
pulldown is on the module.
Module Reset. Reset to the module when driven
low by the carrier board (only resets the SoC
and QSPI boot device). Used as carrier board
supply enable when pulled high by the module
when module power sequence is complete.
Used to ensure proper power on/off sequencing
between module and carrier board supplies.
-up to 1.8V on the module.
Module Sleep. When active (low), indicates
module has gone to Sleep (SC7) mode.
Sleep/Suspend clock. Buffered on the module.
Module ID strap: Indicates whether the module
is a legacy type supporting only 5V on VDD_IN
(tied to GND on the module) or an advanced type
supporting from 5V to 20V on VDD_IN (floating
on the module - pulled high on the carrier
board. See Note 1 ).
) after the carrier board has ensured the main supply is stable
is driven active (high), the module begins to Power-ON.
POWER_EN
Recommended
Usage
System
Control of
devices to be
disabled in sleep
mode.
Sleep/suspend
clock for devices
such as M.2 Key
E
Pulled high on
the carrier board
if it can support
more than the
legacy 5V on
VDD_IN.
signal is released
SYS_RESET*
DG-10931-001_v1.1 | 16
Power
Direction Pin Type
Bidir Open
Drain, 1.8V
Output CMOS
1.8V
Output CMOS
1.8V
Not Not
applicable applicable.
See Note 1