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TUSB214: About Battery charging 1.2 Compliance test

Guru 21045 points
Part Number: TUSB214

Hi Team,

 

Our customer use TUSB214 but their board failed a compliance test of BC1.2.

Could you think of any reasons?

And, could you please let us know if you have recommended setting?

 

[Test content]

GND is offset 0.375V by USB-PET compliance test tester.

As a result, "High Seed signal" repeats Reset and Suspend so enumeration is not completed.

 

[TUSB214 setting]

-SDA(3pin) & SCL(4pin) is Open

-0.1uF is connected to RSTN(5pin)

-EQ(6pin) is Open (Level 3)

-DC BOOST(7pin) is connected to GND by 0ohm (L (pin is pulled low) – 40 mV)

 

Regards,

Kanemaru