TPS2511: BC1.2 compliance test

Part Number:TPS2511

Hi Team,

My customers do not pass BC 1.2 (DCP only) compliance test.

Please give me advice to pass.

<BC 1.2 compliance test items and results in DCP mode>

   ・DCP Overshoot and Undershoot Voltage Test　：PASS

   ・DCP Voltage and Current Test　　　　　　          　：PASS

   ・DCP - Handshaking Test　　　　　　　　            　　：FAIL

         Check D- voltage is in range VDM_SRC (0.5V - 0.7V). [DCP12, DCP13]

         ERRO: D- voltage was not in range VDM_SRC (0.5V - 0.7V), D- = 772 mV.

   ・DCP Resistance and Capacitance Tests　　　  　：FAIL

         Measure voltages at D+ and D-. The difference must be less than 0.67V.

         INFO: D- = 63 mV

         INFO: D+ = 1489 mV

         ERRO: D+ and D- difference was not less than 0.67V, Vdp - Vdm = 1426 mV

Please contact me if you need additional data.

Also, please let me know about recommended test equipment, test environment information.

Best Regards,

Kenji