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.
I should mention that the case thickness, and therefore coil separation should be 2-3mm
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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