Chapter 5. Power; Table 5-1. Power And System Pin Description - Nvidia Jetson Xavier NX Design Manual

Chapter 5. Power

Power for the module is supplied on the
Xavier NX Data Sheet for supply tolerance and maximum current).
!
CAUTION: Jetson Xavier NX is not hot-pluggable. Before installing or removing the module, the
main power supply (to VDD_IN pins) must be disconnected and adequate time allowed for the
various power rails to fully discharge.
Table 5-1. Power and System Pin Description
Module Pin Xavier Pin
Pin #
Name Name
251 VDD_IN −
↓
260
235 PMIC_BBAT −
FORCE_
214 SOC_GPIO00
RECOVERY*
240 SLEEP/WAKE* POWER_ON
SHUTDOWN_
233 −
REQ*
(PMIC EN0
237 POWER_EN through
converter logic)
SYS_RESET_IN_
239 SYS_RESET*
N
NVIDIA Jetson Xavier NX
pins and is nominally 5.0V (see the Jetson
VDD_IN
Usage/Description
Main power – Supplies PMIC and other regulators
PMIC Battery Back-up. Optionally used to provide
back-up power for the Real-Time-Clock (RTC).
Connects to Lithium Cell or super capacitor on
Carrier Board. PMIC is supply when charging cap
or coin cell. Super cap or coin cell is source when
system is disconnected from power. Charging is
enabled by default in software. If non-rechargeable
battery is to be used, charging should be disabled.
Force Recovery strap pin. Held low when
SYS_RESET* goes high (i.e. during power-on)
places system in USB recovery mode
Sleep/Wake. Configured as GPIO for optional use
to indicate the system should enter or exit sleep
mode.
When driven/pulled low by the module, requests
the carrier board to shut down. ~5kΩ pull-up to
VDD_IN (5V) on the module.
Signal for module on/off: high level on, low level
off. Connects to module PMIC EN0 through
converter logic. POWER_EN is routed to a Schmitt
trigger buffer on the module. A 100kΩ pulldown is
also on the module.
Module Reset. Reset to the module when driven
low by the carrier board. Used as carrier board
supply enable when pulled high by the module
Recommended Directio
Pin Type
Usage n
Main DC input Input 5.0V
Input
Range:
1.65V-5.5V
Battery Back-up
Bidir
using coin cell. Output
Options:
2.5V, 3.0V,
3.3V, 3.5V
CMOS –
System Input
1.8V
CMOS –
System Input
5.0V
Open
System Output Drain,
5.0V
Analog
System Input
5.0V
Open
System Bidir Drain,
1.8V
DG-09693-001_v1.7 | 11