RAK3172-SiP STM32WLE5 SiP Module LoRaWAN

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RAK3172-SiP and RAK3172LP-SiP: LoRaWAN Transceiver Modules with Low Power Consumption and Long Range

The RAK3172-SiP and RAK3172LP-SiP are low-power, long-range LoRaWAN transceivers, based on the STM32WLE5JC SoC and presented in System-in-Package (SiP) format. These two modules use different RF output paths to optimize current consumption according to the application. The RAK3172-SiP uses RFO_HP, while the RAK3172LP-SiP uses the RFO_LP of the STM32WL SoC transceiver.

Main features

• Based on STM32WLE5JC
• Two variants available
  • RAK3172-SiP (uses RFO_HP)
  • RAK3172LP-SiP (uses RFO_LP)
• System-in-Package (SiP) format
• Compatible with RUI3 API
• Compliant with LoRaWAN 1.0.3 specification
• Supported bands: IN865, EU868, AU915, US915, KR920, RU864 and AS923
• LoRaWAN activation by OTAA/ABP
• LoRa Point-to-Point (P2P) communication
• Customized firmware via Arduino with RUI3 API
• Easy-to-use AT command set via UART interface
• Long range - up to 15 km with optimized antenna
• 32-bit ARM Cortex-M4 processor
• 256 kB Flash with ECC
• RAM 64 kB
• Ultra-low power consumption of 1.69 μA in standby mode
• Supply voltage: 2.0 V ~ 3.6 V
• Temperature range: -40°C ~ 85°C
• Dimensions: 12 mm x 12 mm x 1.22 mm
• Housing: type LGA73

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Overview

The RAK3172-SiP block diagram illustrates its internal structure.

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RF characteristics

The RAK3172-SiP supports operating frequencies from 863 to 930 MHz.

Operating frequencies

• Europe: EU868
• North America: US915
• Australia : AU915
• Korea : KR920
• Asia: AS923-1/2/3/4
• India: IN865
• Russia: RU864

Power consumption

The current drawn by RAK3172-SiP and RAK3172LP-SiP modules varies according to their operating status:

• RAK3172-SiP (uses RF output RFO_HP)
  • TX mode (transmit) at 20 dBm: 87 mA (typical)
  • RX mode (receive) : -6.14 mA (typical)
  • Standby mode: 1.69 μA (typical)
• RAK3172LP-SiP (uses RF output RFO_LP)
  • TX mode (transmit) at 14 dBm: 39.1 mA (typical)
    • Consumption decreases with lower transmit power (e.g. 25 mA at 8 dBm)
  • RX mode (receive) : -9.69 mA (typical)
  • Standby mode: 2.1 μA (typical)

Note: The RAK3172LP-SiP offers slightly lower power consumption in low-power transmit mode, but the RAK3172-SiP offers higher transmit power in TX mode. Your choice of module will therefore depend on your needs in terms of range and power consumption.

Contact us to find out more about the RAK3172-SIP module and how it can meet the needs of your IoT project.