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HARDWARE AND SPECIFICATIONS
Parameter
RESET (low active) input low
RESET (low active) input high
(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
= 3.0V when referencing the STM32F411REF data sheet.
DD
Input/Output Current Ratings
Output current draw PWR_GOOD, CHG_MON
Output current draw all other output pins
Power Draw
MTQ-LEU7-B02
Radio Protocol Average Measured Current
at Max Power (mA)
5 Volts WITH Unit in developer card
EGSM 900
365
WCDMA
650
LTE
843
5 Volts USB ONLY without developer card
EGSM 900
293
WCDMA
522
LTE
792
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.
12
Conditions
CMOS port
I
=+8 mA
IO
CMOS port
I
=+8 mA
IO
5 mA
25 mA
2
TX Pulse
Average Amplitude Current
1
for Peak Current for HSDPA/LTE
(mA)
1,430
740
913
1,510
556
812
Minimum Volts
Maximum Volts
-
0.99
2.31
-
Total Inrush Charge
Measured in
Millicoulombs (mC)
.377
.377
.377
.020
.020
.020
TM
Dragonfly
MTQ-LEU7 Device Guide
3
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