• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 63 subscribers
  • Views 236 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPS2549: TPS2549 issue

user3434218
Intellectual 690 points
Part Number: TPS2549
Other Parts Discussed in Thread: TPS2546

Hi，

1.I use TPS2549 replace TPS2546 in TPS2546 board, It can not in quick charge，How about different between TPS2549 & TPS2546？

2.Why CDP can't push iphone‘s charge current up to 1A？

  • 0
    TI__Genius 9630 points

    Hello,

    1. Listed below are the difference between the TPS2546 and TPS2549.

    - The TPS2549 can compensate for a voltage drop in long cables and keep the remote USB port output voltage constant where as the TPS2546 is not designed for long cable compensation.

    - The TPS2546 has a wider range of modes that it can accommodate, which is shown in the device truth table below. The TPS2546 has also the load detect power wake functionality. 

    TPS2546

    - The TPS2546 has an operating range from 4.5 V to 5.5 V where the TPS2549 ranges from 4.5 V to 6.5 V. 

    2. For the TPS2549, CDP is enabled up to 1.5-A fast charging of most portable devices. If you are not seeing the correct current, ensure the device is configured for CDP mode. CTL1, CTL2, and CTL3 need to be tied directly to IN.

    TPS2549 Truth Table

    Thanks,

    Emma