Datasheet

V
pu(3.3)
SPEED
SOFTCON
RCV
VPO/VO
VP
VM
1.65Vto3.6V
System ASIC
D–
D+
1.5kW
V
BUS
V
CC(5.0)
OE
V
reg(3.3)
SUSPND
MODE
(A)
VMO/FSE0
V
CC(I/O)
0.1µF
3.3V
V
CC
33 W
33 W
0.1µF
0.1µF
TUSB1105/1106
GND
GND
GND
GND
GND
TUSB1105, TUSB1106
SCAS818E –MAY 2006–REVISED SEPTEMBER 2010 www.ti.com
Figure 8. Peripheral-Side (Full-Speed) Regulator Bypass Mode
Peripheral-Side (Full-Speed) Regulator Bypass Mode
This mode is applicable when there is a 3.3-V supply already available on the board. The V
BUS
pin of the USB
connector, if left unused at the peripheral side, should be terminated with a 0.1-mF capacitor. While operating at
full speed, the 1.5-kΩ resistor must be connected between the D+ line and V
PU(3.3)
or an external 3.3-V supply.
When the V
CC(5.0)
and the V
reg(3.3)
are connected together, the device operates at regulator bypass mode. This
enables power savings since the regulator is turned off.
A. Only for TUSB1105
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Product Folder Link(s): TUSB1105 TUSB1106