HARDWARE AND SPECIFICATIONS
12
Dragonfly
TM
MTQ-LEU7 Device Guide
Parameter
Conditions
Minimum Volts
Maximum Volts
RESET (low active) input low
CMOS port
I
IO
=+8 mA
-
0.99
RESET (low active) input high
CMOS port
I
IO
=+8 mA
2.31
-
(1) Guaranteed by characterization results, not tested in production.
(2) Guaranteed by design, not tested in production.
Note:
See the ST Microcontroller data sheet (STM32F411REF) and the Pin Connector Definitions table in Chapter 3
of this guide.
Use V
DD
= 3.0V when referencing the STM32F411REF data sheet.
Input/Output Current Ratings
Output current draw PWR_GOOD, CHG_MON
5 mA
Output current draw all other output pins
25 mA
Power Draw
MTQ-LEU7-B02
Radio Protocol Average Measured Current
at Max Power (mA)
1
TX Pulse
2
Average Amplitude Current
for Peak Current for HSDPA/LTE
(mA)
Total Inrush Charge
3
Measured in
Millicoulombs (mC)
5 Volts WITH Unit in developer card
EGSM 900
365
1,430
.377
WCDMA
650
740
.377
LTE
843
913
.377
5 Volts USB ONLY without developer card
EGSM 900
293
1,510
.020
WCDMA
522
556
.020
LTE
792
812
.020
1
Maximum Power:
The continuous current during maximum data rate with the radio transmitter at
maximum power.
2
Tx Pulse:
The average peak current during a GSM850 transmission burst period or HSDPA/LTE
connection. The transmission burst duration for GSM850 can vary, depending on what transmission
scheme is being deployed (GPRS Class 8, Class 10, GSM, etc.).
3
Inrush Charge:
The total inrush charge at power on.
