TUSB211: TUSB211 doesn't function

ryoei.suzuki

Prodigy 10 points

Part Number: TUSB211

I use TUSB211 but VREG show 0V.

I write architecture below.

Host <<harness>> TUSB211 on electric circuit <<harness>> device

When turn on host and TUSB211 after connect harness,VREG shows 0V.

After VREG shows 0V, I unplug harness and replug harness.VREG shows 1.8V.

Is there sequence each pin?

Regards

over 1 year ago

0 Stanton Weaver over 1 year ago

TI__Intellectual 2850 points

Hi,

Can you please provide the schematic?

Best,

Stanton

0 ryoei.suzuki over 1 year ago in reply to Stanton Weaver

Prodigy 10 points

Hi,

I form Reference Schematic.

I left floating 3(TEST), 4(CD) and 9(ENA_HS).

I don't use External RESET control input.

R1 is 3900 ohms.

I tried Level 0 and Level1, but results is same.

Regards.

0 Stanton Weaver over 1 year ago in reply to ryoei.suzuki

TI__Intellectual 2850 points

Hi,

Section 8.2.2.1 and 8.2.2.2 give instructions for the sequence of the host side and device side applications. Please note that RSTN pin needs to be toggled in this sequence.

Best,

Stanton

0 Stanton Weaver over 1 year ago in reply to Stanton Weaver

TI__Intellectual 2850 points

Hi,

Any update on your end?

Best,

Stanton

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TUSB211: TUSB211 doesn't function