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What's this please? (Component Advice)

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timelessbeing:
I'm having trouble find any kind of specs or data for this chip.

It's in a bluetooth audio adapter.

Chips reads: NNOD151T UHQ696

Also what company is 'AB'?

TIA

gamalot:

--- Quote from: timelessbeing on June 26, 2022, 05:02:06 am ---I'm having trouble find any kind of specs or data for this chip.

It's in a bluetooth audio adapter.

Chips reads: NNOD151T UHQ696

Also what company is 'AB'?

TIA

--- End quote ---

It comes from Bluetrum (中科蓝汛), a Chinese manufacturer with Bluetooth SOC as their main product, and they don't have any technical information on their website.

http://www.bluetrum.com/

Looks like AB137A:

http://www.bluetrum.com/product/ab137a.html

timelessbeing:
I don't think that's it.
If you translate the page, the specs for the AB137A says
" Built-in charging: not support ", and
" Bluetooth protocol: none "
This chip does charge the lithium pouch cell from USB.

tsmith35:
Difficult company to get info on... possibly AB5317B: http://www.ch-chip.com/en/ab5317b.html
Schematic: http://www.ch-chip.com/Data/ch-chip/upload/file/20200904/2020050688071594-11.pdf

gamalot:

--- Quote from: timelessbeing on June 26, 2022, 05:25:50 pm ---I don't think that's it.
If you translate the page, the specs for the AB137A says
" Built-in charging: not support ", and
" Bluetooth protocol: none "
This chip does charge the lithium pouch cell from USB.

--- End quote ---

Yes you are right, I didn't scroll down that page.  |O

They have other chips that in SOP16 package, support Bluetooth audio, and build-in charging. like this one:

http://www.bluetrum.com/product/ab5607e.html

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