TUSB8041 datasheet(6/48 Pages) TI1

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TUSB8041

SLLSEE4D – JUNE 2014 – REVISED JANUARY 2016

www.ti.com

Pin Functions (continued)

I/O

DESCRIPTION

NAME

NO.

USB Port 2 Power On Control for Downstream Power/Battery Charging Enable. The pin is

used for control of the downstream power switch for Port 2.

In addition, the value of the pin is sampled at the de-assertion of reset to determine the value

of the battery charging support for Port 2 as indicated in the Battery Charging Support

PWRCTL2/BATEN2

I/O, PD

0 = Battery charging not supported

1 = Battery charging supported

USB Port 2 Over-Current Detection. This pin is used to connect the over current output of the

downstream port power switch for Port 2.

0 = An over current event has occurred

OVERCUR2z

I, PU

1 = An over current event has not occurred

This pin be left unconnected if power management is not implemented. If power management

is enabled, the external circuitry needed should be determined by the power switch.

USB_SSTXP_DN3

USB SuperSpeed transmitter differential pair (positive)

USB_SSTXM_DN3

USB SuperSpeed transmitter differential pair (negative)

USB_SSRXP_DN3

USB SuperSpeed receiver differential pair (positive)

USB_SSRXM_DN3

USB SuperSpeed receiver differential pair (negative)

USB_DP_DN3

I/O

USB High-speed differential transceiver (positive)

USB_DM_DN3

I/O

USB High-speed differential transceiver (negative)

USB Port 3 Power On Control for Downstream Power/Battery Charging Enable. The pin is

used for control of the downstream power switch for Port 3.

In addition, the value of the pin is sampled at the de-assertion of reset to determine the value

of the battery charging support for Port 3 as indicated in the Battery Charging Support

PWRCTL3/BATEN3

I/O, PD

0 = Battery charging not supported

1 = Battery charging supported

USB Port 3 Over-Current Detection. This pin is used to connect the over current output of the

downstream port power switch for Port 3.

0 = An over current event has occurred

OVERCUR3z

I, PU

1 = An over current event has not occurred

This pin can be left unconnected if power management is not implemented. If power

management is enabled, the external circuitry needed should be determined by the power

switch.

USB_SSTXP_DN4

USB SuperSpeed transmitter differential pair (positive)

USB_SSTXM_DN4

USB SuperSpeed transmitter differential pair (negative)

USB_SSRXP_DN4

USB SuperSpeed receiver differential pair (positive)

USB_SSRXM_DN4

USB SuperSpeed receiver differential pair (negative)

USB_DP_DN4

I/O

USB High-speed differential transceiver (positive)

USB_DM_DN4

I/O

USB High-speed differential transceiver (negative)

USB Port 4 Power On Control for Downstream Power/Battery Charging Enable. The pin is

used for control of the downstream power switch for Port 4.

In addition, the value of the pin is sampled at the de-assertion of reset to determine the value

of the battery charging support for Port 4 as indicated in the Battery Charging Support

PWRCTL4/BATEN4

I/O, PD

0 = Battery charging not supported

1 = Battery charging supported

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