LoRa/BLE Modules
Hardware Integration Guide
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Parameter
Min
Typical
Max
Unit
Active Mode Average current (Note 4)
Connection Average Current draw
Max with connection interval (min) 7.5 mS
with connection interval 67.5 mS
Min with connection interval (max) 4000 mS
~400
~2.6-4.1
uA
uA
Note 1: If VCC reduces to 2.1V (operating range of DCDC), the peak current consumption would increase
from 11.6mA to ~15.5mA for TX power setting of +3dBm.
Note 2: RM1xx: Standby Doze current TBD typical. Standby Doze is entered automatically (when waitevent
statement is encountered within a smartBASIC application script). See individual peripherals current
consumption in tables in section
Peripheral block current consumption 4.3
.
Note 3: In Deep Sleep, everything is disabled and the only wake-up sources are reset and changes on pins on
which sense is enabled. A reset is required to exit Deep Sleep.
Note 4: Data taken with TX power 3 dBm and all peripherals off (UART OFF after radio event). Average
current consumption depends on a number of factors (including TX power, VCC and accuracy of 16
MHz and 32.768 kHz crystals). With these factors fixed, the largest variable is the connection
interval.
Connection Interval Range:
7.5 ms to 4000 ms in multiples of 1.25 ms.
For a connection event:
- The minimum average current consumption is when the connection interval is large 4000 mS
– The maximum average current consumption is with the shortest connection interval of 7.5 ms; no
slave latency.
Other factors that are also related to average current consumption include whether transmitting 6
packets per connection interval & each packet contains 20 bytes (which is the maximum for each
packet) and an inaccurate 32 kHz master clock accuracy would increase the average current
consumption.
