TPS65987D: Dual-way charger design for e-scooter / USB PD

Dmitry Krivetskov

Part Number: TPS65987D
Other Parts Discussed in Thread: LM5170, LM76005, TPS65987, LM5175

Dear sirs,

Here we have an idea of product like specific high-end charger for e-scooter (48V nom. / 53.4V max) from USB PD (20V 3A, 20V 5A input) with source capability up to 20V 5A.

The TPS65987 and analogius parts seems to fit best for this desing, still could you recommend the particular DC/DC ICs to implement dual-way charging? LM5170 seems to be overdue for that, is there a possbility to utilize smaller parts like LM5175 with power path switching? Or is it better to use different ICs for buck (LM76005 e.g.) and boost (LM5175) operation?

The design should implement safe charging so current and voltage of the battery to be controlled by MCU here, and any suggestions about practical implementation of that (DAC / resistor arrays for LM5175 e.g.) would be hihgl appreciated.

over 5 years ago

0 Prajith Cheerakkoda over 5 years ago

TI__Expert 8650 points

Hello Dimitry,

I believe OSST is the appropriate team to answer your queries related to LMxxxx part.

Redirecting this thread. Please let us know if any help is required on TPS65987 part.

Thanks

Prajith

0 Dmitry Krivetskov over 5 years ago in reply to Prajith Cheerakkoda

Prodigy 170 points

Dear Paul,

thanks, should we move the thread to LM5175 part?

0 Youhao Xi over 5 years ago in reply to Dmitry Krivetskov

TI__Guru* 78060 points

Hi Dmitry,

This thread is not getting our attention because the title is at under a different part which is not covered by out group. It would be helpful if you can re-post your question under a new title line with LM5175 part number.

Anyway, the question is not very clear to us, could you clarify your question and re-post?

I will close this thread here, and we should answer you to your new thread in 24 hours.

Thanks,

Youhao

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TPS65987D: Dual-way charger design for e-scooter / USB PD