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About whether ST25's energy can power MCU

avatar 18523353044 提问时间: 2023-07-01 18:25:29 / 未解决
I use stm32l476rg and ST25 as tags. I need to use the read and write end to collect energy to make the low power control chip L4 work. Will this work successfully?
3个回答
  • avatar Hallstatt
    回答时间: 2023-07-01 18:43:25

    The ST25DV04KC has an energy harvest pin which has about 5mA output power(Depends on the field from reader). If you have higher energy harvesting, you need the NFC WLC solution. NFC for wireless charging - STMicroelectronics

  • avatar 18523353044
    回答时间: 2023-07-01 19:00:15

    So can I use energy harvest pin to make the low power control chip L4 work? I think it's the low power MCU

  • avatar Hallstatt
    回答时间: 2023-07-01 19:30:39
    18523353044 发表于 2023-6-2 16:39
    So can I use energy harvest pin to make the low power control chip L4 work? I think it's the lo ...

    [md]It's not possible to power the L4 with ST25DV V_EH feature. You need to use the NFC WLC circuits to powe the MCU. For the NFC WLC please contact the distributors or local marketing.

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