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
www.ti.com SCAS818E –MAY 2006–REVISED SEPTEMBER 2010
Figure 9. Peripheral-Side (Low-Speed) Regulator Bypass Mode
Peripheral-Side (Low-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
low speed, the 1.5-kΩ resistor must to 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.
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Product Folder Link(s): TUSB1105 TUSB1106