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TUSB2046B, TUSB2046I

www.ti.com

SLLS413L – FEBRUARY 2000 – REVISED JUNE 2017

Product Folder Links: TUSB2046B TUSB2046I

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Copyright © 2000–2017, Texas Instruments Incorporated

(1)

For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application

report.

7.4 Thermal Information

THERMAL METRIC(1)

TUSB2046x

UNIT

RHB (VQFN)

32 PINS

RθJA

Junction-to-ambient thermal resistance

35.7

°C/W

RθJCtop

Junction-to-case (top) thermal resistance

28.4

°C/W

RθJB

Junction-to-board thermal resistance

9.9

°C/W

ψJT

Junction-to-top characterization parameter

0.5

°C/W

ψJB

Junction-to-board characterization parameter

9.8

°C/W

RθJC(bot)

Junction-to-case (bottom) thermal resistance

4.3

°C/W

(1)

Applies for input buffers with hysteresis.

(2)

Applies for open-drain buffers.

7.5 Electrical Characteristics

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

PARAMETER

TEST CONDITIONS

MIN

MAX

UNIT

VOH

High-level output voltage

TTL/LVCMOS

IOH = –4 mA

VCC – 0.5

V

USB data lines

R(DRV) = 15 kΩ to GND

2.8

IOH = –12 mA (without R(DRV))

VCC – 0.5

VOL

Low-level output voltage

TTL/LVCMOS

IOL = 4 mA

0.5

V

USB data lines

R(DRV) = 1.5 kΩ to 3.6 V

0.3

IOL = 12 mA (without R(DRV))

0.5

VIT+

Positive input threshold

TTL/LVCMOS

1.8

V

Single-ended

0.8 V

≤ VICR ≤ 2.5 V

1.8

VIT–

Negative-input threshold

TTL/LVCMOS

0.8

V

Single-ended

0.8 V

≤ VICR ≤ 2.5 V

1

Vhys

Input hysteresis(1)

(VT+ – VT–)

TTL/LVCMOS

0.3

0.7

mV

Single-ended

0.8 V

≤ VICR ≤ 2.5 V

300

500

IOZ

High-impedance output current

TTL/LVCMOS

V = VCC or GND

(2)

±10

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

1

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

V

ICC

Input supply current

Normal operation

40

mA

Suspend mode

1

μA

(1)

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

7.6 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

tr

Transition rise time for DP or DM

See Figure 1 and Figure 2

4

20

ns

tf

Transition fall time for DP or DM

See Figure 1 and Figure 2

4

20

ns

t(RFM)

Rise/fall time matching(1)

(tr/tf) × 100

90%

110%

VO(CRS) Signal crossover output voltage

(1)

1.3

2.0

V