TUSB1106-Q1 Datasheet, PDF (5/24 Pages) Texas Instruments – ADVANCED UNIVERSAL SERIAL BUS TRANSCEIVERS

TUSB1106-Q1
www.ti.com
SCAS916 – AUGUST 2011
lines. The internal circuits of the TUSB1106-Q1 ensure that virtually no current (maximum 10 μA) is drawn via
the D+ and D– lines. The power consumption through V_CC(I/O) drops to the low-power (suspended) state level.
Both the VP and VM pins are driven HIGH to indicate this mode. Pin RCV is made LOW. Some hysteresis is
built into the detection of V_reg(3.3) lost.
Table 2. Pin States in Disable or Sharing Mode
PINS
V_CC(5.0)/V_reg(3.3)
V_CC(I/O)
V_pu(3.3)
D+, D–
VP, VM
RCV
Inputs (VO/VPO, FSE0/VMO, SPEED,
SUSPND, OE, SOFTCON)
DISABLE-MODE STATE
5-V input/3.3-V output, 3.3-V input/3.3-V input
Not present
High impedance (off)
High impedance
Invalid ⁽¹⁾
Invalid ⁽²⁾
High impedance
(1) High impedance or driven LOW
(2) High impedance or driven LOW
SHARING-MODE STATE
Not present
1.65-V to 3.6-V input
High impedance (off)
High impedance
H
L
High impedance
Table 3. Power-Supply Configuration Overview
V_CC(5.0) or V_reg(3.3)
Connected
Connected
Not connected
V_CC(I/O)
Connected
Not connected
Connected
CONFIGURATION
Normal mode
Disable mode
Sharing mode
SPECIAL CHARACTERISTICS
D+, D–, and V_pu(3.3) are in high impedance.
VP, VM, and RCV are invalid.⁽¹⁾
D+, D–, and V_pu(3.3) are in high impedance.
VP and VM are driven HIGH. RCV is driven LOW.
(1) High impedance or driven LOW
Power-Supply Input Options
The TUSB1106-Q1 has two power-supply input options.
• Internal regulator – V_CC(5.0) is connected to 4 V to 5.5 V. The internal regulator is used to supply the internal
circuitry with 3.3 V (nominal). V_reg(3.3) becomes a 3.3-V output reference.
• Regulator bypass – V_CC(5.0) and V_reg(3.3) are connected to the same supply. The internal regulator is bypassed
and the internal circuitry is supplied directly from the V_reg(3.3) power supply. The voltage range is
3 V to 3.6 V to comply with the USB specification.
The supply-voltage range for each input option is specified in Table 4.
INPUT OPTION
Internal regulator
Regulator bypass
Table 4. Power-Supply Input Options
V_CC(5.0)
Supply input for internal regulator
(4 V to 5.5 V)
Connected to V_reg(3.3) with
maximum voltage drop of 0.3 V
(2.7 V to 3.6 V)
V_REG(3.3)
Voltage-reference output
(3.3 V, 300 μA)
Supply input
(3 V to 3.6 V)
V_CC(I/O)
Supply input for digital I/O pins
(1.65 V to 3.6 V)
Supply input for digital I/O pins
(1.65 V to 3.6 V)
Copyright © 2011, Texas Instruments Incorporated
Product Folder Link(s): TUSB1106-Q1
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