u-blox SARA-G3 Series - Page 107

SARA-G3 series - System Integration Manual
UBX-13000995 - R06 Objective Specification Design-in
Page 107 of 218
SARA-G3 series
Rext
2
V_BCKP
15
PWR_ON
Power-on
push button
ESD
Open
Drain
Output
Application
Processor
SARA-G3 series
Rext
2
V_BCKP
15
PWR_ON
TP
TP
Figure 33: PWR_ON application circuits using a push button and an open drain output of an application processor
Reference
Description
Remarks
Rext
100 kΩ Resistor 0402 5% 0.1 W
External pull-up resistor
ESD
CT0402S14AHSG - EPCOS
Varistor array for ESD protection
Table 19: Example of pull-up resistor and ESD protection for the PWR_ON application circuit
It is recommended to provide direct access to the PWR_ON pin on the application board by means
of accessible testpoint directly connected to the PWR_ON pin.