Hi Team,
Customer is looking
Customer is going to have a USB 2.0 device product for data but may need more than 500mA current consumption when it is full loading.
the current consumption needs more than 500mA when full loading mode(USB3 900mA should be enough). However customer do not has HS(480Mbps) or higher speed, and try to avoid the interference between USB3.0 to 2.4G, so customerer will keep data in USB2.0 FS.
Would you please provide comments for questions?
1. USB2.0 host port in PCs can support 500mA and USB3.0 can support 900mA. We will let our device keep in low current mode except full load when we connect to normal USB2.0 host. Does TI have solutions on USB device which could detect the capability of USB Host? to get information from USB host(like USB2.0/USB3.0/USB3.1/USB BC1.2/USB PD...etc)
2. USB 3.0 is supposed to supply 900mA in its spec. But somehow customer've heard some of PC's port even it can support USB3.0 data speed, the current might be limited in 500mA, so the charging current is the same as usual USB2.0. Do you have an idea of this?
3. customer heard that some of USB3.0 host may check the device's data speed to determine support current, Max 900mA for USB3.0 device and Max 500mA if the device is USB2.0. Do you have an idea of this?
BR,
SHH
