Review from Erik Welsh

1. Connect VIN_BAT to PMIC_BAT_SENSE, per recommendation in TPS65217 datasheet rev I figure 56.

2. From BBBW, add one or two cap footprints on both the input and output of the flip flop (IC13) to allow for easy addition of filtering caps when testing for FCC/CE. Alternatively, you could you could add an external 12MHz oscillator (ASDMB-12.000MHZ-LC-T) and use the same clock disable.

3. On the BigEasy Driver, the VDD needs to be 3.3V and not 5V so that the IO voltage is 3.3V.

4. The datasheet for the A4983 recommends bulk capacitors on the VBB. Currently there is a 47uF on the 12V input. Depending on where that is placed, it might be enough, but you should check once you have more placement done to see if you need to put an additional bulk cap on VBB.

5. Would suggest using something like the Tag Connect footprint for the JTAG connector.

6. Not sure if you want to add all the testpoints for the WL1835 (see BB Blue)

7. Depending on the layout, you can flip the D+ / D- inputs of IC14 and IC15. Within the TPD4S012, D+ and D- are the same circuit.

8. You might want to look at a different package (i.e. the DQA vs the DGS) for IP4283CZ10 (TPD4S009DGSR).

9. You might want to look at the SOT-223 package for the 7805T​ depending on cost vs board area needs.

Start by reviewing the TPS65217 datasheet rev I, figure 56, and the A4983 datasheet, then inspect the BBBW, BigEasy Driver, IC13, IC14, IC15, WL1835, and connector layouts referenced in the review. Resolve the nine numbered hardware recommendations, including component choices, power and signal changes, footprints, test points, and capacitor placement; no source files or tests are named.