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Original question:

TPS2511: Issue when charging IPhone 6s

TPS2511: DCP Short Mode

Lucifer
Expert 2600 points
Part Number: TPS2511

Dear Sir,

I try to short 200ohm between Dp and Dm for DCP short mode but the result shows that Icharge isn't 1.5A. May I know what's the problem? thanks.

　

　

D+ / D- setting

Phone

connector

floating
Icharge(A)

connector 200ohm

Icharge(A)

I-PHONE6

Lightning 

0.46

0.92

 A20

TYPE-C

0.5

1.32

NOKIA 

TYPE-C

0.47

0.86

ASUS 

MICRO-USB

0.47

0.47

speaker

MICRO-USB

0.55

0.55
  • 0
    TI__Mastermind 29695 points

    Hello Lucifer,

    The charger may advertise up to 1.5 capabilities but that does not mean the portable device will pull 1.5A. The current drawn from the portable device is heavily dependent on the device itself and the battery percentage. If you are configuring the TPS2511 to advertise 1.5A, it is being relayed properly to the connected portable device.