UCC5670

SLVS394A − MAY 2002

4

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disconnected termination (applies to each line pair, 1−9, in DISCNCT or HIPD mode)

PARAMETER

TEST CONDITION

MIN

TYP

MAX

UNITS

Output leakage

Disabled, TERMPWR 0 < 5.25 V

400

nA

Output capacitance

Single ended measurement to ground,

See Note 1

3

pF

disconnect & diff sense input

PARAMETER

TEST CONDITION

MIN

TYP

MAX

UNITS

DISCNCT threshold

0.8

2.0

V

DISCNCT input current

VDISCNCT = 0 V

−30

−10

µA

DIFFB SE (single ended) to LVD threshold

0.5

0.7

V

DIFFB LVD to HIPD threshold

1.9

2.4

V

time delay/filter

PARAMETER

TEST CONDITION

MIN

TYP

MAX

UNITS

Mode change delay

A new mode change can start any time after a previous

mode has been detected,

100

180

300

ms

status bits (SE, LVD, HIPD)

PARAMETER

TEST CONDITION

MIN

TYP

MAX

UNITS

ISOURCE

VLOAD = 2.4 V

−8.7

−4

mA

ISINK

VLOAD = 0.5 V

3

6

mA

ISINK

VLOAD = 0.4 V

2

5

mA

master/slave (MSTR/SLV) input

PARAMETER

TEST CONDITION

MIN

TYP

MAX

UNITS

MSTR/SLV input current

VMSTR/SLV = 0 V to VTERMPWR

−1

1

µA

VTERMPWR = 2.7 V

0.8

1.9

V

MSTR/SLV threshold

VTERMPWR = 3.3 V

1

2.4

V

MSTR/SLV threshold

VTERMPWR = 5.25 V

1.5

3.7

V

NOTES:

1. Ensured by design and engineering test, but not 100% production tested.

2. Common mode impedance =

(2.0 V

* 0.5 V)

I(at 2.0 V)

* I(at 0.5 V)

; Short each L+ to its’ corresponding L−. Measure the current into each line

pair when forced to 2.0−V and then 0.5−V.

3.

Z

+

V

L X *

0.2 V

I

L X

; where

VL(X) = Output voltage for each terminator minus output pin (L1− through L9−) with each pin unloaded.

IL(X) = Output current for each terminator minus output pin (L1− through L9−) with the output pin forced to 0.2 V.