Auto Power-On Option No Mcu; Figure 5-6. Simplified Button Power-On Circuitry; Table 5-3. Simplified Button Power Circuitry Timing - Nvidia Jetson AGX Xavier Series Design Manual

Figure 5-6. Simplified Button Power-On Circuitry
From Module CARRIER_PWR_ON
(Pin L62)
From multiple
VDDIN_PWR_BAD_N
sources (Module
Pin L55)
From Power BUTTON_POWER_ON*
Button
Optional ACOK circuit
See note
Notes:
1. To support auto-power-on or for a connection to a charger, see Figure 5-7.
2. Designs which implement an eFUSE or current limiting device on the input power rail of the
module should select a part that DOES NOT limit reverse current.
Table 5-3. Simplified Button Power Circuitry Timing
Timing
T
DEBOUNCE
5.4.1.1

Auto Power-On Option No MCU

For designs that will not have a power button but should power on when the main power
supply is connected, the optional ACOK circuit shown in Figure 5-7 should be implemented
and the signal pulled to
ACOK_L
Jetson AGX Xavier Series Product
5V_AO_ONKEY
5V_AO_ONKEY
0.1uF
D
PZP103BY
PZP103BY SOT323_
G
SOT323_ 1G1D1S
D
S
1G1D1S
G 10uF
S
5V_AO_ONKEY
0.47uF
SN74LVC1G07
[GW/DCKRE4]
SC70_5
Parameter
Power button active duration
.
GND
5V_AO_ONKEY
SN74LVC1G17
SC70_BUFF
1uF
SR C0GS22D
5V_AO_ONKEY
TDFN12
VCC VCCLO*
PSHOLD PBOUT
SR* EN/EN*
PB* RST*
CSRD INT* NL17SZ08
DFT2G SC70_5
VREF GND
1uF
5V_AO_ONKEY
100kΩ,1%
Min
>50
Power
5V_AO_ONKEY
SN74LVC1G
VCC_SRC &
32DCKR SC70
VIN_PWR_ON
VDD_5V
enable.
VDD_5V
0.1uF
100kΩ
MODULE_POWER_ON To Module
(Pin L54)
RB521S30T1G
To Module
POWER_BTN_N
(Pin L61)
RB521S30T1G
Units
ms
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