BQ24392: BC1.2 test fail in D+ go to Vdp_src time.

Bruce li

Part Number: BQ24392

Dear TI Expert,

My customer failed to pass BC1.2 test about D+ timing, below is the schematics, test result, could you kindly help to give some advice? Thanks a lot.

1) below is the spec of BC1.2

2) Below is the schematic

3) below is the test result:

4) below is the waveform in oscilloscope

over 5 years ago

0 JMMN over 5 years ago

TI__Guru 60865 points

Hi Bruce,

The BQ24392 implements DCD with current source, please change the test variables and rerun DCD test.

Regards,
JMMN

0 Bruce li over 5 years ago in reply to JMMN

Genius 5580 points

Dear JMMN,

Thanks for your reply. DCD test with current source is passed ,but DCD test -NO Current source is Fail. Could you kindly give some advice for this test? Thanks a lot.

0 JMMN over 5 years ago in reply to Bruce li

TI__Guru 60865 points

Hi Bruce,

BQ24392 does not support DCD without current source.

Regards,

JMMN

0 Bruce li over 5 years ago in reply to JMMN

Genius 5580 points

Dear JMMN,
Thanks a lot for your support.

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BQ24392: BC1.2 test fail in D+ go to Vdp_src time.