WE865-DUAL HW User Guide
1vv0300787
Rev. 1 - 03/10/08
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved
page 15 of 48
4.1.1.1 Current consumption
CURRENT CONSUMPTION @ 3.8V at 25 °C
Operating mode
Typ
Unit
Continuous Receive
100
mA
Continuous Transmit (maximum output power)
180
mA
Stand-by (receive beacons every 100 ms)
5
mA
Deep Sleep
3
mA
Shut-down mode
<1
mA
Table 5
NOTE:
continuous receive and transmit mode measures were taken at channel 6.
4.1.1.2 Shut-down mode
In order to minimize the current consumption it is possible to completely shut-down the WE865-DUAL.
That is achieved by acting on the relevant signal outside the module, which directly acts on the power
device enable/Shut-down signals.
The shut-down is achievable by driving low both the EN_B* (ball D1) and EN_A* (ball B1) signals, to
be connected together.
As EN_B* (ball D1) and EN_A* (ball B1) are internally connected to pull-up, do not drive these signals
during normal operation.
LOGIC CONFIGURATION
signal
ball
Shut-down mode
Operating mode
EN_A*
B1
to be driven low
internally pulled-up
2
EN_B*
D1
to be driven low
internally pulled-up
1
Table 6
2
If the shut-down mode is not used, no external connection is needed.
