User's Manual

GE864

GE864GE864

GE864-

-QUAD Automotive V2 Hardware User Guide

QUAD Automotive V2 Hardware User GuideQUAD Automotive V2 Hardware User Guide

QUAD Automotive V2 Hardware User Guide

1vv0300840 Rev.3 2010-04-08

• A protection diode should be inserted close to the power input, in order to save

the GE864-QUAD Automotive V2 from power polarity inversion. This can be the

same diode as for spike protection.

An example of switching regulator with 12V input is in the below schematic (it is split in

2 parts):

6.3.1.3.

6.3.1.3.6.3.1.3.

6.3.1.3. Battery Source Power Supply Design Guidelines

Battery Source Power Supply Design Guidelines Battery Source Power Supply Design Guidelines

Battery Source Power Supply Design Guidelines

• The desired nominal output for the power supply is 3.8V and the maximum

voltage allowed is 4.2V, hence a single 3.7V Li-Ion cell battery type is suited for

supplying the power to the Telit GE864-QUAD Automotive V2 module.

The three cells Ni/Cd or Ni/MH 3,6 V Nom. battery types or 4V PB types

MUST NOT BE

MUST NOT BE MUST NOT BE

MUST NOT BE

USED DIRECTLY

USED DIRECTLYUSED DIRECTLY

USED DIRECTLY

since their maximum voltage can rise over the absolute maximum

voltage for the GE864-QUAD Automotive V2 and damage it.