DS96177 Datasheet, PDF (2/8 Pages) National Semiconductor (TI) – RS-485/RS-422 Differential Bus Repeater

Absolute Maximum Ratings (Note 2)
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please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Storage Temperature Range
Ceramic DIP
−65˚C to +175˚C
Molded DIP
−65˚C to +150˚C
Lead Temperature
Ceramic DIP (Soldering, 60 sec.)
300˚C
Molded DIP (Soldering, 10 sec.)
265˚C
Maximum Power Dissipation (Note 1) at 25˚C
Molded Package
930 mW
Supply Voltage
7.0V
Input Voltage
5.5V
Recommended Operating
Conditions
Min Typ Max
Supply Voltage (V_CC)
4.75 5.0 5.25
Voltage at any Bus Terminal
(Separately or Common
−7.0
12
Mode) (V_I or V_CM)
Differential Input Voltage
(V_ID)
±12
Output Current HIGH (I_OH)
Driver
−60
Receiver
−400
Output Current LOW (I_OL)
Driver
60
Receiver
16
Operating Temperature (T_A) 0 25 70
Note 1: Derate molded DIP package 7.5 mW/˚C above 25˚C.
Units
V
V
V
mA
µA
mA
˚C
Electrical Characteristics (Notes 3, 4)
Over recommended temperature, common mode input voltage, and supply voltage ranges, unless otherwise specified
Symbol
Parameter
Conditions
Min Typ Max
DRIVER SECTION
V_IH
V_IL
V_IC
|V_OD1|
|V_OD2|
∆|V_OD2|
Input Voltage HIGH
Input Voltage LOW
Input Clamp Voltage
Differential Output Voltage
Differential Output Voltage
Change in Magnitude of Differential
Output Voltage (Note 5)
I_I = −18 mA
I_O = 0 mA
R_L = 100Ω, Figure 1
R_L = 54Ω, Figure 1 and Figure 2
R_L = 100Ω, Figure 1
R_L = 54Ω Figure 1 V_CM = 0V
and Figure 2
2.0
0.8
−1.5
6.0
2.0 2.25
1.5 2.0
±0.2
V_OC
∆|V_OC|
I_O
I_OZ
I_IH
I_IL
I_OS
I_CC
Common Mode Output Voltage (Note 6)
Change in Magnitude of Common Mode
Output Voltage (Note 5)
Output Current with Power Off
High Impedance State Output Current
Input Current HIGH
Input Current LOW
Short Circuit Output Current
(Note 10)
Supply Current
R_L = 54Ω or 100Ω
Figure 1
V_CC = 0V, V_O = −7.0V to +12V
V_O = −7.0V to +12V
V_I = 2.7V
V_I = 0.5V
V_O = −7.0V
V_O = 0V
V_O = V_CC
V_O = 12V
No Load
Outputs Enabled
Outputs Disabled
3.0
±0.2
±100
±50 ±200
20
−100
−250
−150
150
250
35
40
RECEIVER SECTION
V_TH
Differential Input
V_O = 2.7V, I_O = −0.4 mA
0.2
High Threshold Voltage
V_TL
Differential Input Low
Threshold Voltage (Note 7)
V_O = 0.5V, I_O = 8.0 mA
−0.2
V_T+−V_T−
V_IH
V_IL
Hysteresis (Note 8)
Enable Input Voltage HIGH
Enable Input Voltage LOW
V_CM = 0V
50
2.0
0.8
Units
V
V
V
V
V
V
V
V
µA
µA
µA
µA
mA
mA
V
V
mV
V
V
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