6.4 Thermal Information

THERMAL METRIC(1)

TUSB2E22

TUSB2E22

UNIT

YCG (DSBGA)

RZA (VQFN)

25 PINS

20 PINS

RθJA

Junction-to-ambient thermal resistance

73.5

46.0

°C/W

RθJC(top)

Junction-to-case (top) thermal resistance

0.4

39.0

°C/W

RθJC(bottom)

Junction-to-case (bottom) thermal resistance

—

13.2

°C/W

RθJB

Junction-to-board thermal resistance

18.9

21.3

°C/W

ΨJT

Junction-to-top characterization parameter

0.2

1.6

°C/W

ΨJB

Junction-to-board characterization parameter

18.9

21.2

°C/W

(1)

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

report.

6.5 Electrical Characteristics

over operating free-air temperature range (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

DIGITAL INPUTS

VIH

High level input voltage

CROSS, EQ1, EQ0

1.053

V

VIL

Low-level input voltage

CROSS, EQ1, EQ0

0.693

V

VIL

Low-level input voltage

RESETB

0.35

V

VIH

High level input voltage

RESETB

0.75

V

IIH

High level input current

VIH = 1.98 V, VDD3V3=3.0 V or 0 V,

VDD1V8=1.62V or 0 V

CROSS, RESETB, EQ1, EQ0

2

µA

IIL

Low level input current

VIL = 0 V, VDD3V3=3.0 V or 0 V,

VDD1V8=1.62V or 0 V

CROSS, RESETB, EQ1, EQ0

2

µA

USBA (DPA, DNA), USBB (DPB, DNB)

Zinp_Dx

Impedance to GND, no pull up/down

Vin=3.6 V, VDD3V3=3.0 V USB 2.0

Specification Section 7.1.6

390

kΩ

RPUI

Bus Pull-up Resistor on Upstream

Facing Port (idle)

USB 2.0 Specification Section 7.1.5

0.92

1.1

1.475

kΩ

RPUR

Bus Pull-up Resistor on Upstream

Facing Port (receiving)

USB 2.0 Specification Section 7.1.5

1.525

2.2

2.99

kΩ

RPD

Bus Pull-down Resistor on Downstream

Facing Port

USB 2.0 Specification Section 7.1.5

14.35

19

24.6

kΩ

VHSTERM

Termination voltage in highspeed

USB 2.0 Specification Section

7.1.6.2, The output voltage in the high-

speed idle state

–10

10

mV

USB TERMINATION

ZHSTERM

Driver Output Resistance (which also

serves as high speed termination)

(VOH= 0 to 600 mV) USB 2.0

Specification Section 7.1.1.1,

40.5

45

49.5

Ω

USBA, USBB INPUT LEVELS LS/FS

VIH

High (driven)

USB 2.0 Specification Section 7.1.4

(measured at connector)

2

V

VIHZ

High (floating)

USB 2.0 Specification Section 7.1.4

(HOST downstream port pull down

resistor enabled and external device pull

up 1.5K +/-5% to 3.0-3.6 V).

2.7

3.6

V

VIL

Low

USB 2.0 Specification Section 7.1.4

0.8

V

USBA, USBB OUTPUT LEVELS LS/FS

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TUSB2E22

SNLS648B – FEBRUARY 2019 – REVISED OCTOBER 2023

Copyright © 2023 Texas Instruments Incorporated

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