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6 Comments

  1. I was under the impression a proper USB charger needs to communicate with the USB host to ensure it will supply the full 500mA available from a USB 2.0 port. This MAX1555 part seem incapable of doing this – and off hand I don’t know of another that can.

  2. The MAX1555 charges with just 100mA when USB-powered. When it is used with an external supply (which cannot be done with the circuit linked above) it charges with 280mA.

  3. Sweet, my post ;)
    I’ll have one wit ha Microchip up in one or two weeks I hope.
    Real PCB’s on the way for that thought. Max1555 is too expensive and hard to get.

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