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I_SoC (on VDD_MCU) is the current consumption of all the STM32WL MCU.
I_RF (on VDD_RF) is the current consumption of the RF part of the STM32WL MCU. I_SYS (on VDD_SYS) is the current consumption of the rest of the STM32WL MCU (except I-RF). So I_SoC = I_RF + I_SYS We can evaluate the current consumption of the RF part of the STM32WL MCU by connecting an ammeter on JP2. SB28 must be OFF in this case. We can also evaluate the current consumption of the rest of the STM32WL MCU (VDD_SYS) by connecting an ammeter on JP5. SB27 must be OFF in this case. We can also evaluate the RF front-end current consumption (VDD_APP) by connecting an ammeter on JP9. SB32 must be OFF in this case. This current consumption only concerns both NX3L1T3157GM DC switches (U3 and U4) |
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