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- High power contracts without EMCA cable?
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DaPa_1246801
Level 1
Jan 21, 2018
01:40 PM
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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
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Jan 22, 2018
10:17 PM
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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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