User's Guide

LE866 HARDWARE USER GUIDE 1vv0301210 Rev.0 Preliminary 2015-09-02 25 of 68
Reproduction forbidden without Telit Communications PLC written authorization All Rights Reserved
RTC
The LE866 module is provided by an internal RTC section but its reference supply is VBATT.
So, in order to maintain active the RTC programming, VBATT should not be removed
VAUX Power Output
A regulated power supply output is provided in order to supply small devices from the module. The signal
is present on Pad G6 and it is in common with the PWRMON (module powered ON indication) function.
This output is always active when the module is powered ON.
The operating range characteristics of the supply are:
Item
Min
Typical
Max
Output voltage
1.7V
1.80V
1.9V
Output current
-
-
60mA
Output bypass
capacitor
(inside the module)
TBD
NOTE:
The Output Current MUST never be exceeded; care must be taken when
designing the application section to avoid having an excessive current
consumption.
If the Current is exceeding the limits it could cause a Power Off of the module.