DS75176B Datasheet, PDF (2/14 Pages) National Semiconductor (TI) – Multipoint RS-485/RS-422 Transceivers

DS75176B, DS75176BT
SNLS381C – JULY 1998 – REVISED APRIL 2013
www.ti.com
Absolute Maximum Ratings ⁽¹⁾⁽²⁾
Supply Voltage, V_CC
Control Input Voltages
Driver Input Voltage
Driver Output Voltages
Receiver Input Voltages (DS75176B)
Receiver Output Voltage
Continuous Power Dissipation @ 25°C
for SOIC Package
for PDIP Package
Storage Temperature Range
Lead Temperature
(Soldering, 4 seconds)
ESD Rating (HBM)
7V
7V
7V
+15V/ −10V
+15V/ −10V
5.5V
675 mW ⁽³⁾
900 mW ⁽⁴⁾
−65°C to +150°C
260°C
500V
(1) “Absolute Maximum Ratings” are those beyond which the safety of the device cannot be verified. They are not meant to imply that the
device should be operated at these limits. The tables of “Electrical Characteristics” provide conditions for actual device operation.
(2) If Military/Aerospace specified devices are required, please contact the TI Sales Office/Distributors for availability and specifications.
(3) Derate linearly @ 6.11 mW/°C to 400 mW at 70°C.
(4) Derate linearly at 5.56 mW/°C to 650 mW at 70°C.
Recommended Operating Conditions
Supply Voltage, V_CC
Voltage at Any Bus Terminal
(Separate or Common Mode)
Operating Free Air Temperature T_A
DS75176B
DS75176BT
Differential Input Voltage, VID ⁽¹⁾
Min
Max
4.75
5.25
−7
+12
0
+70
−40
+85
−12
+12
(1) Differential - Input/Output bus voltage is measured at the noninverting terminal A with respect to the inverting terminal B.
Units
V
V
°C
°C
V
Electrical Characteristics ^{(1) (2)}
0°C ≤ T_A≤ 70°C, 4.75V < V_CC< 5.25V unless otherwise specified
Symbol
Parameter
V_OD1
Differential Driver Output
Voltage (Unloaded)
I_O = 0
V_OD2
Differential Driver Output
Voltage (with Load)
See (Figure 2)
ΔV_OD
V_OC
Δ|V_OC|
Change in Magnitude of Driver
Differential Output Voltage For
Complementary Output States
Driver Common Mode Output Voltage
Change in Magnitude of Driver
Common Mode Output Voltage
For Complementary Output States
See (Figure 2)
Conditions
R = 50Ω; (RS-422) ⁽³⁾
R = 27Ω; (RS-485)
R = 27Ω
Min Typ Max Units
5
V
2
V
1.5
V
0.2 V
3.0 V
0.2 V
(1) All currents into device pins are positive; all currents out of device pins are negative. All voltages are referenced to device ground unless
otherwise specified.
(2) All typicals are given for V_CC = 5V and T_A = 25°C.
(3) All worst case parameters for which this note is applied, must be increased by 10% for DS75176BT. The other parameters remain valid
for −40°C < T_A < +85°C.
2
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