Datasheet

DS36954
www.ti.com SNLS077C –JULY 1998–REVISED APRIL 2013
Electrical Characteristics
(1)(2)
(continued)
Over Supply Voltage and Operating Temperature ranges, unless otherwise specified
Symbol Parameter Conditions Min Typ Max Units
I
IH
Input High Current V
IN
= 2.4V
(5)
20 μA
I
IL
Input Low Current V
IN
= 0.4V
(5)
−20 μA
I
OSC
Driver Short-Circuit Output Current
(6)
V
O
= −7V (EIA-485) −130 −250 mA
V
O
= 0V (EIA-422) −90 −150 mA
V
O
= +12V (EIA-485) 130 250 mA
RECEIVER CHARACTERISTICS
I
OSR
Short Circuit Output Current V
O
= 0V
(6)
−15 −28 −75 mA
I
OZ
TRI-STATE Output Current V
O
= 0.4V to 2.4V 20 μA
V
OH
Output Voltage High V
ID
= 0.2V, I
OH
= 0.4 mA 2.4 3.0 V
V
OL
Output Voltage Low V
ID
= −0.2V, I
OL
= 4 mA 0.35 0.5 V
V
TH
Differential Input High Threshold V
O
= V
OH
, I
O
= −0.4 mA (EIA-422/485)
0.03 0.2 V
Voltage
V
TL
Differential Input Low Threshold V
O
= V
OL
, I
O
= 4.0 mA (EIA-422/485) −0.2
−0.03 V
Voltage
(7)
0
V
HST
Hysteresis
(8)
V
CM
= 0V 35 60 mV
DRIVER AND RECEIVER CHARACTERISTICS
V
IH
Enable Input Voltage High 2.0 V
V
IL
Enable Input Voltage Low 0.8 V
V
CL
Enable Input Clamp Voltage I
CL
= −18 mA −1.5 V
I
IN
Line Input Current
(9)
Other Input = 0V V
I
= +12V 0.5 1.0 mA
DE/RE = 0.8V
V
I
= −7V −0.45 −0.8 mA
DE4 = 0.8V
I
ING
Line Input Current
(9)
Other Input = 0V V
I
= +12V 1.0 mA
DE/RE and DE4 = 2V
V
I
= −7V
V
CC
= 3.0V
−0.8 mA
T
A
= +25°C
I
IH
Enable Input Current High V
IN
= 2.4V V
CC
= 3.0V 1 40 μA
DE/RE
V
CC
= 4.75V 1 μA
V
CC
= 5.25V 1 40 μA
V
IN
= 2.4V V
CC
= 3.0V 1 20 μA
DE4 or RE4
V
CC
= 5.25V 1 20 μA
I
IL
Enable Input Current Low V
IN
= 0.8V V
CC
= 3.0V −6 −40 μA
DE/RE
V
CC
= 4.75V −12 μA
V
CC
= 5.25V −14 −40 μA
V
IN
= 0.8V V
CC
= 3.0V −3 −20 μA
DE4 or RE4
V
CC
= 5.25V −7 −20 μA
I
CCD
Supply Current
(10)
No Load, DE/RE and DE4 = 2.0V 75 90 mA
I
CCR
Supply Current
(10)
No Load, DE/RE and RE4 = 0.8V 50 70 mA
(5) I
IH
and I
IL
include driver input current and receiver TRI-STATE leakage current on DR(1–3).
(6) Short one output at a time.
(7) Threshold parameter limits specified as an algebraic value rather than by magnitude.
(8) Hysteresis defined as V
HST
= V
TH
− V
TL
.
(9) I
IN
includes the receiver input current and driver TRI-STATE leakage current.
(10) Total package supply current.
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