TPL7407L - Some questions

Hi all,

Would you mind if we ask TPL7407L?

<Question1>
On the datasheet P11, there is optional diode between VSUP and COM.
How much of rated voltage's diode should we use?

<Question2>
On the datasheet P4 6.3 Recommended Operating Conditions, Recommend confiton of Ids is upto 500mA
Does it mean the total current of CHXX?


Kind regards,

Hirotaka Matsumoto