User's Manual

GE864- QUAD Har dwar e User Guide
1vv0300872 Rev.1 2010-04-02
- All Rights Reserved. Page 19 of 77
5. Hardware Commands
5.1. Turning ON the GE864-QUAD
To tur n on the GE864-QUAD the pad ON# must be tied low for at least 1 second and
then released.
The maximum curr ent that can be drained fr om the ON# pad is 0,1 mA.
A simple cir cuit to do it is:
NOTE:
Do not use any pull up resistor on the ON# line, it is internally pulled up. Using pull
up resistor may bring to latch up problems on the GE864-QUAD power regulator and
impr oper power on/off of the module. The line ON# must be connected only in open
collector configur ation.
NOTE:
In this document all the lines that are inverted, hence have active low signals are
labeled with a name that ends with a “#” or with a bar over the name.
NOTE:
The GE864-QUAD turns fully on also by supplying power to the Charge pad (Module
pr ovided with a battery on the VBATT pads).