Datasheet

TUSB1105, TUSB1106
www.ti.com SCAS818E –MAY 2006–REVISED SEPTEMBER 2010
Power-Supply Input Options
The TUSB1105 and TUSB1106 have 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 8.
Table 8. Power-Supply Input Options
INPUT OPTION V
CC(5.0)
V
REG(3.3)
V
CC(I/O)
Supply input for internal regulator Voltage-reference output Supply input for digital I/O pins
Internal regulator
(4 V to 5.5 V) (3.3 V, 300 mA) (1.65 V to 3.6 V)
Connected to V
reg(3.3)
with
Supply input Supply input for digital I/O pins
Regulator bypass maximum voltage drop of 0.3 V
(3 V to 3.6 V) (1.65 V to 3.6 V)
(2.7 V to 3.6 V)
Electrostatic Discharge (ESD)
PARAMETER TEST CONDITIONS TYP UNIT
Human-Body Model ±15
D+, D–, V
CC(5.0)
, and GND kV
IEC-61000-4-2, Contact Discharge ±8
All other pins Human-Body Model 7 kV
Absolute Maximum Ratings
(1)
over operating free-air temperature range (unless otherwise noted)
MIN MAX UNIT
V
CC(5.0)
Supply voltage range –0.5 6 V
V
I(I/O)
Supply voltage range –0.5 4.6 V
V
CCreg(3.3)
Regulated voltage range –0.5 4.6 V
V
I
DC input voltage –0.5 V
CC(I/O)
+ 0.5 V
I
IK
Input clamp current V
I
= –1.8 V to 5.4 V 100 mA
T
stg
Storage temperature range –40 125 °C
(1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
Recommended Operating Conditions
MIN NOM MAX UNIT
V
CC(5.0)
Supply voltage, internal regulator option 5-V operation 4 5 5.5 V
V
CCreg(3.3)
Supply voltage, regulator bypass option 3.3-V operation 3 3.3 3.6 V
V
CC(I/O)
I/O supply voltage 1.65 3.6 V
V
I
I/O supply voltage 0 V
CC(I/O)
V
V
I/O
Input voltage on analog I/O pins (D+, D–) 0 3.6 V
T
c
Junction temperature –40 85 °C
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Product Folder Link(s): TUSB1105 TUSB1106