td2

GRSTz

VDD33

VDD

MISC_IO

td1

tsu_io

thd_io

11

TUSB8041

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SLLSEE4E – JUNE 2014 – REVISED JUNE 2016

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(1)

An active reset is required if the VDD33 supply is stable before the VDD11 supply. This active Reset shall meet the 3ms power-up delay

counting from both power supplies being stable to the de-assertion of GRSTz.

(2)

There is no power-on relationship between VDD33 and VDD unless GRSTz is only connected to a capacitor to GND. Then VDD must

be stable minimum of 10 μs before the VDD33.

(3)

MISC pins sampled at de-assertion of GRSTz: FULLPWRMGMTz, GANGED, PWRCTL_POL, SMBUSz, BATEN[4:1], and AUTOENz.

7.6 Timing Requirements, Power-Up

PARAMETER

DESCRIPTION

MIN

TYP

MAX

UNIT

td1

VDD33 stable before VDD stable(1)

See (2)

ms

td2

VDD and VDD33 stable before de-assertion of GRSTz

3

ms

tsu_io

Setup for MISC inputs(3) sampled at the de-assertion of GRSTz

0.1

µs

thd_io

Hold for MISC inputs(3) sampled at the de-assertion of GRSTz

0.1

µs

tVDD33_RAMP

VDD33 supply ramp requirements

0.2

100

ms

tVDD_RAMP

VDD supply ramp requirements

0.2

100

ms

Figure 2. Power-Up Timing Requirements

7.7 Hub Input Supply Current

Typical values measured at TA = 25°C

PARAMETER

VDD33

VDD

UNIT

3.3 V

1.1 V

LOW POWER MODES

Power On (after Reset)

2.3

28

mA

Upstream Disconnect

2.3

28

mA

Suspend

2.5

33

mA

ACTIVE MODES (US state / DS State)

3.0 host / 1 SS Device and Hub in U1 / U2

49

225

mA

3.0 host / 1 SS Device and Hub in U0

49

366

mA

3.0 host / 2 SS Devices and Hub in U1 / U2

49

305

mA

3.0 host / 2 SS Devices and Hub in U0

49

508

mA

3.0 host / 3 SS Devices and Hub in U1 / U2

49

380

mA

3.0 host / 3 SS Devices and Hub in U0

49

661

mA

3.0 host / 4 SS Devices and Hub in U1 / U2

49

455

mA

3.0 host / 4 SS Devices and Hub in U0

49

778

mA

3.0 host / 1 SS Device in U0 and 1 HS Device

85

395

mA

3.0 host / 2 SS Devices in U0 and 2 HS Devices

99

554

mA

2.0 host / HS Device

45

63

mA

2.0 host / 4 HS Devices

76

86

mA

SMBUS Programming current

79

225

mA