TPS2546: TPS2546 Can we shorten the detection time? Or cancel?

2018

Expert 2630 points

Part Number: TPS2546
Other Parts Discussed in Thread: TPS2544

Our charging cabinet (TPS2546 chip for USB) has load detection function.

When no load is detected, the USB port of the charging cabinet will not output current.

The charging cabinet charges the flat panel for a few seconds and then disconnects for a few seconds.

This leads to low charging efficiency.This can lead to a long period of inadequate charging.

Seen from the table below
When there is no load, 0.2S will be disconnected.
When there is load, 3S will not supply power until after.

Can we shorten the detection time? Or cancel?
Can TPS2544 be replaced?

over 6 years ago

0 Chuck Branch over 6 years ago

TI__Mastermind 32791 points

There is no way to shorten the load detect time, it is built into the state machine.

What features are required for this implementation. This will allow me to check the portfolio for different options.

Regards,
Chuck

0 Chuck Branch over 6 years ago in reply to Chuck Branch

TI__Mastermind 32791 points

Clark,

Is there anything I can do to support your question? I am happy to look at our portfolio to see if we have a better solution to meet your needs.

Regards,
Chuck

0 Chuck Branch over 6 years ago in reply to Chuck Branch

TI__Mastermind 32791 points

Clark,

I haven't had any feedback on this ticket for more than a week, so I am going to move into TI Thinks Resolved Status.

If you need any further support on this issue, please just respond and I will be notified.

Power management

Power management forum

TPS2546: TPS2546 Can we shorten the detection time? Or cancel?