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USB EZ-PD Type-C

DaPa_1246801
New Contributor

We are developing a direct attach peripheral (no intermediate cable) that requires 20V@3.5A. How can we negotiate the higher power level (without an EMCA cable)?

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ShifangZ_26
Moderator
Moderator

Hi Dave,

If you are power sink role, and do not want to have a E-marker cable, the highest current shall be 3A. Since the power source shall detect EMCA capability before advertise SOURCE_CAP or by pass ALT MODE on USB signals. The voltage is not limitation.

Best Regards,

Lisa

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ShifangZ_26
Moderator
Moderator

Hi Dave,

If you are power sink role, and do not want to have a E-marker cable, the highest current shall be 3A. Since the power source shall detect EMCA capability before advertise SOURCE_CAP or by pass ALT MODE on USB signals. The voltage is not limitation.

Best Regards,

Lisa

View solution in original post

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