TPS2074, TPS2075

FOUR-PORT USB HUB POWER CONTROLLERS

SLVS288A – SEPTEMBER 2000 – REVISED FEBRUARY 2001

7

POST OFFICE BOX 655303

electrical characteristics over recommended operating junction temperature range,

4.5 V

(continued)

output signals (BPMODE or BPMODE, OCx, DPO_RST)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

BPMODE

4.25 V

≤ VI(BP) ≤ 5.5 V,

4.5 V

≤ VI(SP) ≤ 5.5 V

2.4

VOH

High level output voltage

BPMODE

4.25 V

≤ VI(BP) ≤ 5.5 V,

VI(SP) < 4 V

IO =2mA

2.4

V

VOH

High-level output voltage

OCx

4.25 V

≤ VI(BP) ≤ 5.5 V,

VI(ENx) = 3.3 V or Hi-Z

IO = 2 mA

2.4

V

DPO_RST

4.25 V

≤ VI(BP) ≤ 5.5 V,

VI(PG_DLY) = 3.3 V

2.4

BPMODE

4.25 V

≤ VI(BP) ≤ 5.5 V,

VI(SP) < 4 V

IO =3 2mA

0.4

VOL

Low-level output voltage

BPMODE

4.25 V

≤ VI(BP) ≤ 5.5 V,

4.5 V

≤ VI(SP) ≤ 5.5 V

IO = 3.2 mA

0.4

V

OCx

4.25 V

≤ VI(BP) ≤ 5.5 V,

OUTx = 0 V

IO(OC) = 3.2 mA

0.4

Minimum input voltage at BP for

IO = 300 µA,

VO(BPMODE)≤ 0.4 V

1.5

VI(BP)

Minimum input voltage at BP for

low-level output

IO = 300 µA, VI(SP) = 5 V

VO(BPMODE)≤ 0.4 V,

1.5

V

Ilkg

Hi-Z leakage current at DP0_RST

0 V

≤ VI(DPO_RST) ≤ 3.3 V, VI(SP) = 0 V,

VI(BP) = 5.5 V, VI(PG_DLY) = 0.9 V

–5

5

µA

td

Overcurrent response delay time

(see Note 1)

1

10

ms

NOTE 1: Specified by design, not tested in production.

undervoltage lockout (SP and BP)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Start threshold

SP

4.5

V

Start threshold

BP

VI(SP) = Hi-Z

4.25

V

Stop threshold

SP

4

V

Stop threshold

BP

3.75

V

Vh

Hysteresis voltage (see Note 1)

SP

300

mV

Vhys

Hysteresis voltage (see Note 1)

BP

300

mV

NOTE 1: Specified by design, not tested in production.