TUSB2046B datasheet(7/25 Pages) TI

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TUSB2046B

TUSB2046BI

www.ti.com

SLLS413I – FEBRUARY 2000 – REVISED SEPTEMBER 2013

ELECTRICAL CHARACTERISTICS

over recommended ranges of operating free-air temperature and supply voltage (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

MAX

UNIT

TTL/LVCMOS

IOH = –4 mA

VCC – 0.5

VOH

High-level output voltage

R(DRV) = 15 kΩ to GND

2.8

USB data lines

IOH = –12 mA (without R(DRV))

VCC – 0.5

TTL/LVCMOS

IOL = 4 mA

0.5

VOL

Low-level output voltage

R(DRV) = 1.5 kΩ to 3.6 V

0.3

USB data lines

IOL = 12 mA (without R(DRV))

0.5

TTL/LVCMOS

1.8

VIT+

Positive input threshold

Single-ended

0.8 V

≤ VICR ≤ 2.5 V

1.8

TTL/LVCMOS

0.8

VIT–

Negative-input threshold

Single-ended

0.8 V

≤ VICR ≤ 2.5 V

TTL/LVCMOS

0.3

0.7

Input hysteresis(1)

Vhys

(VT+ – VT–)

Single-ended

0.8 V

≤ VICR ≤ 2.5 V

300

500

TTL/LVCMOS

V = VCC or GND

(2)

±10

IOZ

High-impedance output current

μA

USB data lines

0 V

≤ VO ≤ VCC

±10

IIL

Low-level input current

TTL/LVCMOS

VI = GND

–1

μA

IIH

High-level input current

TTL/LVCMOS

VI = VCC

μA

z0(DRV)

Driver output impedance

USB data lines

Static VOH or VOL

7.1

19.9

Ω

VID

Differential input voltage

USB data lines

0.8 V

≤ VICR ≤ 2.5 V

0.2

Normal operation

ICC

Input supply current

Suspend mode

μA

(1)

Applies for input buffers with hysteresis.

(2)

Applies for open drain buffers.

DIFFERENTIAL DRIVER SWITCHING CHARACTERISTICS

Full Speed Mode

over recommended ranges of operating free-air temperature and supply voltage, CL = 50 pF (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

MAX

UNIT

Transition rise time for DP or DM

See Figure 1 and Figure 2

Transition fall time for DP or DM

See Figure 1 and Figure 2

t(RFM)

Rise/fall time matching(1)

(tr/tf) × 100

110

VO(CRS) Signal crossover output voltage

(1)

1.3

2.0

(1)

Characterized only. Limits are approved by design and are not production tested.

DIFFERENTIAL DRIVER SWITCHING CHARACTERISTICS

Low Speed Mode

over recommended ranges of operating free-air temperature and supply voltage, CL = 50 pF (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

MAX

UNIT

Transition rise time for DP or DM(1)

CL = 200 pF to 600 pF,

See Figure 1 and Figure 2

300

Transition fall time for DP or DM(1)

CL = 200 pF to 600 pF,

See Figure 1 and Figure 2

300

t(RFM)

Rise/fall time matching(1)

(tr/tf) × 100

120

VO(CRS) Signal crossover output voltage

(1)

CL = 200 pF to 600 pF

1.3

2.0

(1)

Characterized only. Limits are approved by design and are not production tested.

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