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Texas Instruments BQ24190: Is it correct to understand that even if DPDM_EN is 0, D+/D- detection is performed during USB connection and IINLIM is automatically set?

power supply

That's right.

DPDM_EN is normally 0 and performs D+/D- detection when VBUS is connected.
Setting DPDM_EN from the host forces D+/D- detection, after which DPDM_EN returns to 0.

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