Turn On Module With Pon_1 - Quectel QuecOpen AG521R-NA Hardware Design

VBAT
PWRKEY
RESET
UART
USB
VDD_ EXT
NOTES
1. Please make sure that VBAT is stable for at least 30 ms before pulling down PWRKEY pin.
2. It is recommended to use an external OD/OC circuit to control the PWRKEY pin.

3.7.2. Turn on Module with PON_1

Table 9: PON_1 Pin Description
Pin Name Pin No.
PON_1 248
When the module is powered off, drive PON_1 high for at least 500 ms will turn on the module automatically. A
simple reference circuit is illustrated in the following figure.
AG521R-NA_QuecOpen_Hardware_Design
Note 1
≥ 500 ms
≤ 0.63 V
V
IL
I nactive
I nactive
TBD
Figure 12: Power-on Timing
Description
Driving it high will turn on the module
automatically
AG521R-NA QuecOpen Hardware Design
≥ 1.17 V
V
IH
TBD
TBD
Comment
Valid trigger range:
0.78 V~1.89 V.
Automotive Module Series
Active
Active
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