Datasheet

SN65HVD72
SN65HVD75
SN65HVD78
SLLSE11C –MARCH 2012–REVISED SEPTEMBER 2013 www.ti.com
ELECTRICAL CHARACTERISTICS
over recommended operating range (unless otherwise specified)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
R
L
= 60 Ω, 375 Ω on each output to See
1.5 2 V
-7 V to 12 V Figure 1
Driver differential output voltage
|V
OD
| R
L
= 54 Ω (RS-485) 1.5 2 V
magnitude
R
L
= 100 Ω (RS-422) T
J
≥ 0°C,
2 2.5 V
V
CC
≥ 3.2V
Change in magnitude of driver
Δ|V
OD
| R
L
= 54 Ω, C
L
= 50 pF –50 0 50 mV
differential output voltage
See
Steady-state common-mode output
Figure 2
V
OC(SS)
1 V
CC
/2 3 V
voltage
Change in differential driver output
ΔV
OC
Center of two 27-Ω load resistors –50 0 50 mV
common-mode voltage
Peak-to-peak driver common-mode
V
OC(PP)
200 mV
output voltage
C
OD
Differential output capacitance 15 pF
Positive-going receiver differential
V
IT+
See
(1)
–70 –20 mV
input voltage threshold
Negative-going receiver differential
V
IT–
–200 –150 See
(1)
mV
input voltage threshold
Receiver differential input voltage
V
HYS
50 80 mV
threshold hysteresis (V
IT+
– V
IT–
)
V
OH
Receiver high-level output voltage I
OH
= –8 mA 2.4 V
CC
–0.3 V
V
OL
Receiver low-level output voltage I
OL
= 8 mA 0.2 0.4 V
Driver input, driver enable, and
I
I
–2 2 µA
receiver enable input current
Receiver output high-impedance
I
OZ
V
O
= 0 V or V
CC
, RE at V
CC
–1 1 µA
current
I
OS
Driver short-circuit output current –160 160 mA
V
I
= 12 V 75 150 µA
HVD72, 75
V
I
= –7 V –100 –40 µA
V
CC
= 3 to 3.6 V or
I
I
Bus input current (disabled driver)
V
CC
= 0 V, DE at 0 V
V
I
= 12 V 240 333 µA
HVD78
V
I
= –7 V –267 –180 µA
Driver and Receiver DE=V
CC
, RE=GND, No
750 950 µA
enabled load
Driver enabled, DE=V
CC
, RE=V
CC
, No
300 500 µA
receiver disabled load
I
CC
Supply current (quiescent)
Driver disabled, DE=GND, RE=GND, No
600 800 µA
receiver enabled load
Driver and receiver DE=GND, D=open
0.1 2 µA
disabled RE=V
CC
, No load
Supply current (dynamic) See the TYPICAL CHARACTERISTICS section
(1) Under any specific conditions, V
IT+
is assured to be at least V
HYS
higher than V
IT-
.
4 Submit Documentation Feedback Copyright © 2012–2013, Texas Instruments Incorporated
Product Folder Links: SN65HVD72 SN65HVD75 SN65HVD78