USB 2.0 7-Port Hub

Data Sheet Rev. 1.01

polymeric PTC and MOSFET switches. In these cases, 5V pull-up are used instead.

And Figure 8 shows LQFP-48 implementation for Multiple Gangs Mode – the only mode supported by

LQFP-48 package.

Jul. 16, 2009

Subject to Change Without Notice

14

Fig. 7: LQFP-64 Power Control Mode Examples

FE2.1

Ganged Mode

Selected

Poly meric

PTC

3.5A

5V

Source

To VBUS of all

downstream

facing ports

PWRJ[3]

PWRJ[4]

PWRJ[2]

PWRJ[1]

PWRJ[6]

PWRJ[5]

PWRJ[7]

OVCJ[3]

OVCJ[4]

OVCJ[2]

OVCJ[1]

OVCJ[6]

OVCJ[5]

OVCJ[7]

FE2.1

Multiple Ganges

Mode Selected

Poly meric

PTC

2A

5V

Source

To VBUS of

port 1, 2, 3, & 4

PWRJ[3]

PWRJ[4]

PWRJ[2]

PWRJ[1]

PWRJ[6]

PWRJ[5]

PWRJ[7]

OVCJ[3]

OVCJ[4]

OVCJ[2]

OVCJ[1]

OVCJ[6]

OVCJ[5]

OVCJ[7]

2A

5V

Source

To VBUS of

port 5, 6, & 7

5V

5V

Fig. 8: LQFP-48 Power Control Example

FE2.1

(LQFP48)

Poly meric

PTC

2A

5V

Source

To VBUS of

port 1, 2, 3, & 4

PWRJ

OVCJ1

OVCJ5

2A

5V

Source

To VBUS of

port 5, 6, & 7

5V