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  •  Needs power LED so we can tell if the board is powered
  •  Through-holes need to be widened
  •  Test points should be through-hole (SMT pads are too sketchy for HV)
  •  Use smaller analog mux?
  •  Turns out the LTC6804 requires Vtop and Vbottom to be connected?
  •  T_SELx need to have pullup resistors to Vreg (they're open-drain) - see pg60 in the LTC6804 datasheet
  •  Change to vertical 2 pin duraclik headers 

Revision 2

Retrospective

  •  Through-holes still need to be widened
  •  The C6 inputs on both connectors should be fused or one should be removed - I recommend removing one and switching to a 6-pin duraclik to prevent plugging in harnesses the wrong way
  •  Still need to use smaller analog mux
    • The smaller mux wouldn't help much with board size so there's no real point in doing so. I'll fix the BOM to have the correct part. 
  •  ICMP and IBIAS pins are flipped - Should be IBIAS → resistor → ICMP → resistor → GND
  •  Silkscreen for connectors, silkscreen for daisy-chain direction
  •  Use Vref2 for the external thermistor? It's at 3V nominal and seems to be designed for thermistors.
    • Not sure if this is the best idea since we get a larger voltage range with 5V and it's off a LDO anyways. 
  •  Replace the 10k resistors for thermistors with a resistor array?
  •  Remove outdated note in isoSPI Interface sheet
  •  Missing 100ohm and capacitor on C0?

Revision 3

Retrospective

  •  Mux has the wrong footprint
  •  Missing 22uF cap in the BOM
  •  Update outdated notes on isoSPI mode
  •  Need to connect ground directly to C0_F or C0 in addition to existing cap

Carrier

Revision 1  

Retrospective

  •  MISO and MOSI need pull up resistors to 3v3, they are also open-drain outputs 
  •  The 2 pin header for ISO SPI has pins 1 and 2 reversed, they should be swapped. 

Revision 2

Retrospective

  •  isoSPI Mode 0 by default (for current sense)
  •  Add connector for kill switch
  •  Add ability to switch between master/slave and modes on isoSPI so we can use it as a sniffer
  •  Bias resistors are flipped and are odd values - should be the same as AFE
  •  Needs test points for 3v3, 12v, and GND