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2. Specifications
2.1 Recommended Operating Conditions
Parameter
USB Supply Input Voltage
Supply Input Voltage (VMCU supplied externally)
Operating Temperature
1
Note:
The typical supply voltage to the EFR32BG22 is 3.0 V, but the maximum voltage is a function of temperature and average life-
time current load. Over a 10-year lifespan, the average lifetime current load should not exceed 60 mA when the supply voltage is 3.3 V.
See the EFR32BG22 data sheet for more information.
2.2 Current Consumption
The operating current of the board greatly depends on the application and the amount of external hardware connected. The table below
attempts to give some indication of typical current consumptions for the EFR32BG22 and the on-board debugger. Note that the num-
bers are taken from the data sheets for the devices. For a full overview of the conditions that apply for a specific number from a data
sheet, the reader is encouraged to read the specific data sheet.
Parameter
EFR32BG22 Current Con-
1
sumption
On-board Debugger Sleep
2
Current Consumption
1
From EFR32BG22 data sheet
2
From EFM32GG12 data sheet
silabs.com | Building a more connected world.
Table 2.1. Current Consumption
Symbol
I
MCU current consumption in EM0 mode with all peripher-
BG22
als disabled (module supply voltage = 3.0 V, VSCALE2,
38.4 MHz crystal, CPU running Prime from flash at 25 °C)
Radio system current consumption in receive mode, active
packet reception (VDD = 3.0 V, MCU in EM1 and all MCU
peripherals disabled, HCLK = 38.4 MHz, 1Mbit/s, 2GFSK,
f = 2.4 GHz at 25 °C)
Radio system current consumption in transmit mode (VDD
= 3.0 V, MCU in EM1 and all MCU peripherals disabled,
HCLK = 38.4 MHz, f = 2.4 GHz, CW, 6 dBm output power
at 25 °C)
I
On-board debugger current consumption when USB cable
DBG
is not inserted (EFM32GG12 EM4S mode current con-
sumption)
Symbol
Min
V
–
USB
V
+3.3
VMCU
T
–
OP
Condition
UG509: BG22 Explorer Kit User's Guide
Specifications
Typ
Max
Unit
+5.0
–
V
1
V
+20
–
˚C
Typ
Unit
28
µA/MHz
3.8
mA
8.4
mA
80
nA
Rev. 1.1 | 6
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