TS3USB3000_15 Datasheet, PDF (12/26 Pages) Texas Instruments – DPDT USB 2.0 High-Speed and Mobile High-Definition Link Switch

TS3USB3000
SCDS337B – DECEMBER 2012 – REVISED DECEMBER 2015
www.ti.com
Feature Description (continued)
8.3.2.1 Pin Leakage
When the voltage on the D- pins rises above VCC + 1 V a leakage path in the device starts conducting as shown
in Figure 14. The amount of leakage depends on the VCC voltage and the pin voltage. This leakage is governed
by Equation 1:
Pin Leakage = ^{VD -VCC}
12000
(1)
Leakage Path
VCC
USB-
D-
MHL-
USB+
D+
MHL+
SEL
/OE
GND
Figure 14. Potential Leakage Path D- to VCC
8.4 Device Functional Modes
8.4.1 High Impedance Mode
The TS3USB3000 has a high impedance mode that places all the signal paths in a Hi-Z state while the device is
not in use. To put the device in high impedance mode and disable the switch, the bus-switch enable pin OE must
be supplied with a logic High signal.
Table 1. Function Table
SEL
X
Low
High
OE
High
Low
Low
SWITCH STATUS
Both USB and MHL switches in High-Z
D+/D– to USB+/USB–
D+/D– to MHL+/MHL–
12
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