Microchip Technology DM160218 Scheda Tecnica
MGC3130
DS40001667C-page 18
Advance Information
2012-2013 Microchip Technology Inc.
4.2.4.4
MGC3130 Power Profile
The MGC3130 power profile is illustrated in
FIGURE 4-6:
MGC3130 POWER PROFILE
MGC3130 current consumption for the different
operation modes are summarized in
operation modes are summarized in
The Processing mode current consumption depends
on the number of active Rx channels, N
on the number of active Rx channels, N
RxChannels
, and
can be determined by
EQUATION 4-1:
PROCESSING MODE
CURRENT
CONSUMPTION
CURRENT
CONSUMPTION
The Self Wake-up mode current consumption depends
on the Approach Detection feature configuration:
Approach Scan and Calibration Scan repetition period.
on the Approach Detection feature configuration:
Approach Scan and Calibration Scan repetition period.
Changing these parameters results in different current
consumption values.
consumption values.
and
describe the Self Wake-up
mode current consumption according to the Approach
Scan and Calibration Scan period change.
Scan and Calibration Scan period change.
Wake-up IRQ from host
or I²C
TM
start detected
Approach detected
No user interaction
(Time-out)
t
I
I
DS
(1)
= 9µA
I
PEAK
(1)
= 20mA
I
SW1
(1)
= 200µA
Deep Sleep
Self Wake-up
Self Wake-up
Processing
I
PEAK
: Processing mode with 5 Rx Channels
I
SW1
: Self Wake-up with 150 ms Approach Scan and 10s Calibration Scan
I
SW2
: Self Wake-up with 150 ms Approach Scan and without Calibration Scan
I
DS
:
Deep Sleep
(1) These are preliminary values @ 3.3V, typical
I
SW2
(1)
= 110µA
TABLE 4-1:
CURRENT CONSUMPTION OVERVIEW
Mode
Current Consumption
Conditions
Processing mode
20 mA
V
DD
= 3.3V
5 Rx Channels activated
Self Wake-up mode
110 µA
V
DD
= 3.3V
No Calibration Scan
Approach Scan each 150 ms
Approach Scan each 150 ms
200 µA
V
DD
= 3.3V
Calibration Scan each 10s
Approach Scan each 150 ms
Approach Scan each 150 ms
Deep Sleep mode
9 µA
V
DD
= 3.3V
I
peak
10
N
RxChannels
2
+
mA
=