Datasheet
DS481
www.ti.com
SNLS131B –JULY 2000–REVISED MARCH 2013
Absolute Maximum Ratings
(1)(2)
Supply Voltage (V
CC
) +12V
Enable Input Voltage
(RE
(3)
, DE) −0.5V to (V
CC
+ 0.5V)
Driver Input Voltage (DI) −0.5V to (V
CC
+ 0.5V)
Driver Output Voltage (A, B) −14V to +14V
Receiver Input Voltage (A, B) −14V to +14V
Receiver Output Voltage (RO) −0.5V to (V
CC
+ 0.5V)
Maximum Package Power Dissipation @ +25°C
D0008A Package 1.19W
Derate D0008A Package 9.5 mW/°C above +25°C
Maximum Package Power Dissipation @ +70°C
D0008A Package 0.76W
Storage Temperature Range −65°C to +150°C
Lead Temperature Range
(Soldering, 4 sec.) +260°C
ESD (HBM) ≥2 kV
(1) “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. They are not meant to
imply that the devices should be operated at these limits. The table of “Electrical Characteristics” specifies conditions of device
operation.
(2) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/Distributors for availability and
specifications.
(3) Non Terminated, Open Input only
Recommended Operating Conditions
Min Typ Max Units
Supply Voltage (V
CC
) +4.75 +5.0 +5.25 V
Operating Free Air
Temperature (T
A
)
DS481T −40 +25 +85 °C
Bus Common Mode Voltage −7 +12 V
Electrical Characteristics
Over Supply Voltage and Operating Temperature Ranges, unless otherwise specified
(1) (2)
Parameter Test Conditions Pin Min Typ Max Units
V
OD1
Differential Driver Output Voltage (No Load) A, B 1.5 5 V
V
OD2
Differential Driver Output Voltage R
L
= 50Ω, (RS422), Figure 2 2 2.8 V
with Load
R
L
= 27Ω, (RS485), Figure 2 1.5 2.3 5 V
ΔV
OD
Change in Magnitude of Output R
L
= 27Ω or 50Ω
(3)
0.2 |V|
Differential Voltage
V
OD3
Differential Driver Output Voltage— R1 = 54Ω, R2 = 375Ω
1.5 2.0 5 V
Full Load with Max V
CM
V
TEST
= −7V to +12V, Figure 3
V
OC
Driver Common-Mode Output R
L
= 27Ω or 50Ω, Figure 2 0 3 V
Voltage
ΔV
OC
Change in Magnitude of Common- R
L
= 27Ω or 50Ω, Figure 2 0.2 |V|
Mode
(3)
Output Voltage
(1) Current into device pins is defined as positive. Current out of device pins is defined as negative. All voltages are referenced to ground
except V
OD1/2/3
and V
ID
.
(2) All typicals are given for: V
CC
= +5.0V, T
A
= +25°C.
(3) Δ|V
OD
| and Δ|V
OC
| are changes in magnitude of V
OD
and V
OC
respectively, that occur when the input changes state.
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