Other Parts Discussed in Thread: BQ51013A, TIDA-00318, BQ51003, PMP11311, TIDA-00668
I am very new to wireless charging design and need help with a few things. If I can get this running it will potentially mean millions in revenue for TI.
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I am very new to wireless charging design and need help with a few things. If I can get this running it will potentially mean millions in revenue for TI.
Hello
We have not released an EVM or reference design for the BQ51013B with QFN package.
But from a layout standpoint the BQ51013A and BQ51013B are the same. We did release a QFN EVM for the A version, see below link:
http://www.ti.com/lit/ug/sluu911a/sluu911a.pdf
Coil that is 1" round -- See TIDA-00318, this uses the TDK WR222230-26M8-G.
Note small coils work best for lower power, less than 500mA for 1A the larger EVM coil would work best.
Thickness -- 2-3mm if this is coil to coil distance it is good.
These are both very helpful, thank you.
Since you clearly know your stuff, maybe I should start a bit further back... I am building an environmental sensor based on the ESP32 microcontroller running at 3.3VDC. I've been using AP2112-3.3 for the LDO and MCP73831T-2ACI/OT for charging from USB so far but can do something different. I intend to seal the package completely (potted) so it's impervious to moisture and power it with the following 400Mah battery pack. I am designing everything myself, including the case, and can do anything required to make this work. I would like to keep the case dimensions in the 30mm x 45mm range ideally, but can go slightly larger if necessary. Please answer the following questions:
Thanks in advance - I know I'm asking for a lot, but I don't have much experience in this area and would like to get started on the right foot. And I need something forgiving...
Hello
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