:orphan:

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.. dtcompatible:: nxp,pca9422-charger
.. _dtbinding_nxp_pca9422_charger:

nxp,pca9422-charger
###################

Vendor: :ref:`NXP Semiconductors N.V. <dt_vendor_nxp>`

.. note::

   An implementation of a driver matching this compatible is available in
   :zephyr_file:`drivers/charger/charger_pca9422.c`.

Description
***********



.. code-block:: none

   NXP PCA9422 battery charger

Properties
**********

.. tabs::

   .. group-tab:: Node specific properties

      Properties not inherited from the base binding file.

      .. list-table::
         :widths: 1 1 4
         :header-rows: 1

         * - Name
           - Type
           - Details

         * - ``constant-charge-current-max-microamp``
           - ``int``
           - .. code-block:: none

                Fast Charge current set at init time in uA, available range is 2.5mA to 640mA.
                The value specified will be rounded down to the closest implemented
                value. If set to 0 (default) skip setting the charge current value at
                driver initialization.



             This property is **required**.

             Default value: ``100000``

         * - ``constant-charge-voltage-max-microvolt``
           - ``int``
           - .. code-block:: none

                The maximum voltage that the battery will be charged at, defaults to
                4.2V, matching the device default reset configuration.



             This property is **required**.

             Default value: ``4200000``

         * - ``precharge-current-percent``
           - ``int``
           - .. code-block:: none

                Precharge current as x%(7% or 16%) of Fast charge current.
                Refer to CHARGER_CNTL_1 register description for details.



             Default value: ``16``

             Legal values: ``7``, ``16``

         * - ``charge-termination-current-percent``
           - ``int``
           - .. code-block:: none

                Topoff current as x%*10 (2.5%, 5.0%, 7.5%, or 10.0%)
                of Fast charge current. Charge will finish when charging
                current is less than topoff current.
                Refer to CHARGER_CNTL_4 register description for details.



             Default value: ``25``

             Legal values: ``25``, ``50``, ``75``, ``100``

         * - ``re-charge-threshold-microvolt``
           - ``int``
           - .. code-block:: none

                Recharge threshold in relation to Vbat_reg.
                Refer to CHARGER_CNTL_4 register description for details.



             Default value: ``100000``

             Legal values: ``100000``, ``150000``, ``200000``

         * - ``input-current-limit-microamp``
           - ``int``
           - .. code-block:: none

                Input current limit on VIN, available range is 45mA to 1195mA.



             Default value: ``470000``

         * - ``system-voltage-min-threshold-microvolt``
           - ``int``
           - .. code-block:: none

                System regulation voltage. It is higher 200mV than Vbat_reg.
                Vbatreg will clamp by Vsys_reg - 200mV.



             Default value: ``4550000``

         * - ``device-chemistry``
           - ``string``
           - .. code-block:: none

                This describes the chemical technology of the battery. The "lithium-ion" value is a blanket type for all lithium-ion batteries. If the specific chemistry is unknown, this value can be used instead of the precise "lithium-ion-X" options.


             Legal values: ``'nickel-cadmium'``, ``'nickel-metal-hydride'``, ``'lithium-ion'``, ``'lithium-ion-polymer'``, ``'lithium-ion-iron-phosphate'``, ``'lithium-ion-manganese-oxide'``

         * - ``ocv-capacity-table-0``
           - ``array``
           - .. code-block:: none

                An array providing the open circuit voltage (OCV) , which is used to look
                up battery capacity according to current OCV value. The OCV unit is
                microvolts.

                Unlike the linux equivalent this array is required to be 11 elements
                long, representing the voltages for 0-100% charge in 10% steps.



         * - ``charge-full-design-microamp-hours``
           - ``int``
           - .. code-block:: none

                battery design capacity


         * - ``re-charge-voltage-microvolt``
           - ``int``
           - .. code-block:: none

                limit to automatically start charging again


         * - ``precharge-current-microamp``
           - ``int``
           - .. code-block:: none

                current for pre-charge phase


         * - ``charge-term-current-microamp``
           - ``int``
           - .. code-block:: none

                current for charge termination phase




   .. group-tab:: Deprecated node specific properties

      Deprecated properties not inherited from the base binding file.

      (None)

   .. group-tab:: Base properties

      Properties inherited from the base binding file, which defines
      common properties that may be set on many nodes. Not all of these
      may apply to the "nxp,pca9422-charger" compatible.

      (None)