To begin the design process, the designer must know the following:
- The battery voltage.
- The short-circuit cable length.
- The maximum continuous output current for the USB
port. The minimum current-limit setting of TPD3S713x-Q1 device must be higher
than this current.
- The maximum output current of the upstream dc-dc converter. The maximum
current-limit setting of TPD3S713x-Q1 device must be lower than this
current.
- For cable compensation, the total resistance including power switch rDS(on), cable resistance, and connector contact resistance must be specified.